28 MISREPRESENTING THE TRUTH

It is an article of faith in climate science that the temperature of the stratosphere is due to the impact of short wave radiation. This is incorrect. In fact the temperature of the stratosphere is due to the interception of long wave radiation from the Earth by ozone. It is another article of faith that the circulation of the air is driven from the tropics. This is also incorrect.

The temperature of the atmosphere  reflects many forces at work but the most important of these so far as the circulation of the air is concerned is ozone. The ozonosphere can be considered to extend from the surface of the planet through to the mesopause. The shape of the ozonosphere is a product of  a number of forces:

  • The interaction of short wave solar radiation with the atmosphere that supplies oxygen in atomic form to combine with O2 to form O3.  This occurs in the mesosphere down to about 60 km in elevation and also it seems at the poles where cosmic rays ionise the atmosphere allowing the formation of ozone.
  • The tropical atmosphere below about 40  kilometres in elevation exhibits an increase in its ozone content in daylight hours and may be considered a relatively safe zone where ozone can accumulate in trace amounts.
  • Relief from the pressure of ionisation at low sun angles. Ozone is  ionised by  UVB and shorter  wave lengths that are used up in the process. Because the atmospheric path is long very little ultraviolet B reaches the polar regions to destroy ozone and none at all during the period of the polar night.
  • The lower profile of the stratosphere is sculpted by the erosive activity of NOx  that is influential in establishing the height of the tropopause and in the process determines the elevation where the maximum in ozone partial pressure occurs.
  • At the poles the intake of mesospheric air varies on all time scales and regulates ozone partial pressure accordingly.

The ozone content of the air and the height of the troposphere so established are influential in determining surface pressure and therefore the flow of the air, in fact the location and intensity of the planetary winds that regulate the equator to pole temperature gradient and the extent and location of cloud cover that limits the incidence of solar radiation at the surface.

To examine the profile of the stratosphere at all latitudes would be a worthy but onerous task that I will leave to others.  But it is instructive to study the temperature of the atmosphere in a  particular latitude band to try and discern the forces at work because they are different according to hemisphere and latitude. I look in particular at the temperature of the air in the latitude band 30-40° south at selected levels  starting  at the planets skin, then 2 metres above the surface, at 700 hPa,  at 500 hPa where half the atmosphere is below and half  above, 300 hPa where something quite strange begins to happen,  at 200 hPa and 100 hPa  where paradoxically the air is warmer in winter than in summer. Then we look at the temperature of the air at 30 Mb and at 10 Mb therefore spanning 99% of the depth of the atmosphere. This site is the starting point:  http://www.esrl.noaa.gov/psd/map/time_plot/

A SURVEY OF THE ATMOSPHERIC PROFILE AT 30-40° SOUTH LATITUDE.

SST map

The map above shows the latitude band under investigation. It is mostly sea.

The hovmoller diagram below shows the average temperature at the surface across the 30-40° south latitude band as it evolves  in the interval of the single year 2014. There is nothing special about this year. Any year would do.

skin

The skin temperature exhibits a pattern of summer warming influenced by the location of the land masses of South Africa, Australia-New Zealand and South America. There is marked warming of the Pacific Ocean from November through to June. There are southward moving warm currents on the west of the ocean basins and up welling of cold waters on the east of the basins particularly to the west of South America. Also seen is the remarkably episodic pattern in the cooling of the Australian continent in winter that relates to an intermittent flow of cold air that traverses the continent from north west to south east. The Pacific maintains a zone of relative warmth to the east of the Australian continent perhaps by virtue of the relative width of the ocean and the strength of the southerly trending circulation of warm waters from the tropics.The land masses warm strongly in summer.Notice the strong cooling of the Indian Ocean to the west of Australia in winter-spring that tends to promote the formation of a sticky zone of high atmospheric pressure. In contrast the warmth of the Pacific in the vicinity of New Zealand creates s sticky zone of low surface pressure.

Air 2m

The proposition advanced in climate science is that the temperature of the air predominantly reflects the temperature of the skin. Above we see that even at 2 metres of elevation this is not the case. Already  warming and cooling is intermittent within a season by comparison with skin temperature. The scale necessary to span the variation in the temperature of the skin spans 48°C. The scale required at 2 metres is only 4o° C. The land masses cool the air in winter while air over the sea remains warmer. Texture in the temperature data is produced  by moving air bodies that originate in the north west (called the westerlies) that locate towards the south east at a later date reflecting the fact that the atmosphere rotates faster than the Earth itself and propagates towards the south east carrying tropical warmth to higher latitudes but in an intermittent fashion.The warm air is also wet and arrives with cloud. The presence of cloud can be erroneously considered to be the source of the warmth via back radiation whereas the air is actually warm because of its origin. In fact any particular location on the Earths surface will be warm or cool according to the origin of the air. If the air changes in either its speed or direction this alters the equator to pole temperature gradient. 

The ultimate  fate of the air in these latitudes is to be drawn into a low pressure cyclone located at 50-70° south latitude. We see that the pattern made by the north westerlies is more defined in winter and spring than in summer and autumn. Autumn is a pleasant time of the year in some of the windiest latitudes on the planet. By latitude as we move southwards from the thirties we have the Roaring Forties, the Furious Fifties and the Screaming Sixties. In winter the Thirties assume some of the character of the Forties.

Warmer air manifests in shorter strings with less persistence probably because it is rising and leaving the cold air at the surface in long remnant streamers. Cold air, locally chilled as it travels over cold water pools into the valleys of Andes mountains in winter.  There is a clearer definition of summer and winter in the temperature at 2 metres than in skin temperature.  We see that the atmosphere heavily influences near surface air temperature regardless of the status of skin temperature. Temperature is not simply a function of the angle of the sun. Cloud cover plays a part in determining local air temperature. Not shown is precipitation rates and relative humidity that exhibit the same north west to south east streaming. The Pacific sector to the East of 150° east longitude is wetter than the Indian ocean sector. The temperature pattern indicates a slowing or a blocking of the the atmospheric flow in the Western Pacific when compared to the other oceans. We have blobs rather than streaks and reduced contrast.

700

At 700 Mb (above) there is a a thicker, broader structure in the pattern of temperature variability in summer and thinner more linear elements in winter. This indicates a faster air flow in winter. In summer and autumn the air is relatively still. There is more seasonal definition at 700 mb than at 2 metre elevation emphasising that the movement of the atmosphere is influential in  creating seasonal contrasts. It is the movement of the atmosphere that defines the equator to pole temperature gradient. If the wind blows alternately from a warm place and then a cold place we call it an oscillation, such as the Arctic Oscillation or the Antarctic Oscillation.

There is a much stronger graininess  in temperature at 700 Mb than at the surface emphasising the dependence of surface conditions on the state of the atmosphere as it varies on short time scales. The degree of graininess is different according to longitude with the appearance of persistent linear elements in winter that propagate south eastwards more strongly in some parts than others.

500

At  500 Mb (above) there is a similar pattern to that at 700 Mb but the winter season is shorter.  In the vicinity of Africa the air is warmer  across the year . This likely represents a consistent flow of warm tropical air southwards in that vicinity.

300

At 300 Mb there appears to be a marked extension of the winter season and reduced contrast between the seasons.

200

At 200 Mb (above) we see that the months June to October are  warmer than the summer months.  In particular this is the case between longitudes 60° East and 120° West. This relates to the pattern of the increase in atmospheric ozone in winter. We have entered a realm in the upper troposphere where the temperature of the air is markedly influenced by the presence of ozone. There  can be no active photolysis of  any atmospheric gas at the 200 mb to  drive the warming of the air. Rather, heating is due to  energy gain from infrared radiation that is emanating from the Earth itself. The ozone molecule absorbs at 9-10 um. This is a phenomenon unrecognised and unremarked in climate science even though ozone is recognised as a ‘greenhouse gas? The 200 mb pressure level is the altitude where jet streams manifest. Each small yellow-orange streak in the diagram above represents a stream of ozone warmed air that is rapidly ascending. There is a strong linearity and persistence in the patterns in this diagram. The pattern is quite different to that  seen at lower altitudes. The difference  relates to the marked change in density differentials between different air masses. Notice the concentration of warming  between longitudes 120-180°  East. due to the tendency of ozone to accumulate in low pressure cells in the southern ocean to the south of Australia and New Zealand. This is  verified in the diagrams below that represent ozone at 1 hPa on the 16th day of the month, each diagram a month apart.

polar 1hPa

Above we have a polar stereographic view of Antarctica at the 1 hPa pressure level. These diagrams show the manner of the descent of ozone deficient mesospheric air over the pole and also the episodic tendency for ozone to accumulate over the Southern Ocean south of Australia and New Zealand at longitude 120 to 180° east of the Greenwich meridian. This tendency is reflected in the hovmoller diagrams both above and below. The heating process due to the increase in ozone partial pressure in winter  delivers an even stronger contrast at the 100 Mb pressure level. In fact the 100 Mb pressure level is where the movement of the bulk of the atmosphere is determined. The temperature of the air and its movement has little to do with surface conditions and a lot to do with the ozone content of the atmosphere that increases strongly in winter.

100

The diagram above shows air temperature at 100 mb. Winter is warmer than summer at 100 hPa due to ozone heating of the air. The air is warmest in the Australia New Zealand sector due to the tendency for ozone to proliferate over the warm waters of the western Pacific Ocean that tend to promote the formation of zones of low surface pressure.

100 polar

Above we see the distribution of ozone at 100 hPa over the southern hemisphere in winter. At this elevation the atmosphere shows the texture that would might expect at the interface of two different fluids moving at a slightly different rate but in the same anticlockwise direction. Tracers of ozone rich air emanate from nodes rich in ozone and are left behind in air that moves less rapidly. The nodes of ozone rich air tend to form in the lee of the continents where the waters are warmer and in particular in the Australian, New Zealand western Pacific sector.

The anticlockwise circulation of the air moves faster than the Earth itself and faster in the polar regions than at the equator. This gives rise to some very interesting questions: Is the force that causes the Earth to rotate on its axis also responsible for the faster rotating atmosphere, a disengaged fluid element that is free to reflect the forces of the interplanetary environment acting on the atmosphere? Are these forces responsible for the minute variations that are observed in the Length of the Day that are seen to be related to changes in climate as we measure it at the surface of the Earth? Is this rotation of the Earth and its atmosphere driven by the same sort of force that drives an electric motor.  Does the atmosphere simply exhibit an amplified variation of the length of day type that could be  measured in terms of the speed and direction of the high altitude winds. Does the rotation of the air speed up and slow down as the electromagnetic field changes under the influence of the sun and the solar wind?

Notice the generalised depletion of ozone that starts in August. This is due to the activity of NOx reaching the pole as surface pressure rises, the flow of mesospheric air is cut off and the final warming begins. In springtime as atmospheric pressure falls over Antarctica the stratosphere over the pole warms, the circulation of the air slows and by December it actually reverses its rotation at the 10 Mb level.

In particular we should be interested in whether the zonal wind slows as the stratosphere heats, not only on the annual scale, but also on the synoptic scale of days and weeks. If it does, perhaps the atmosphere is responding to the electromagnetic environment of which it is part.

50

At 50 hPa (above) the pattern of ozone accumulation in the Australian New Zealand sector is more clearly defined. The pattern is less episodic, more linear and  persistent. In fact the movement of the air even at 30° -40° south begins to reflect the linearity and the stop-go nature of the high altitude zonal wind that reaches its apogee in the structure of the polar vortex.Notice the difference in linearity between summer and winter. Notice the extension of winter warming until November that is the transition month between winter and summer conditions at this latitude. We are here looking at part of the driver for surface conditions in the southern hemisphere and indeed globally on all time scales.In a later chapter we will see that November is the ‘snap to attention’ month when the dominant role of driving the ozone content of the air is passed over short time intervals is passed, baton like, to the Arctic.

There is one other thing worth noticing. Its actually extremely important because it confounds what we read in Climate Science texts. The 50 hPa pressure level  is in the lower stratosphere at an elevation of 20 km. The stratosphere is supposedly stratified, non convective and irrelevant so far as surface weather is concerned. In fact the stratosphere in winter is a very active part of the atmosphere in terms of air temperature, density and wind. Inspect the scale on this diagram. The range required to represent the data at 50 Mb is 22°C. At 100 hPa the range is 30°C. At 500 hPa the range required is 28°C, at 700 hPa 26°C and at 2 metres 40° C. What does that tell us about the forces responsible for the movement of the atmosphere? The atmosphere is a medium that tends to minimise temperature differences in the horizontal plane. The range at 100 Mb, though flattened by winter warming, indicates that the forces that are involved in generating air temperature and density contrasts aloft are more influential in driving the movement of the air than the forces that are active at the surface. The range required at 100 Mb  is diminished by the reversal of the temperature relationship between summer and winter, a range reducing phenomenon that  acts to conceal rather than reveal the forces at work . Perhaps a  superior proxy for the  strength of the disparities in density at 100 Mb is wind strength. Wind strength is least at the surface and increases with elevation peaking at Jet Stream altitudes. The inevitable conclusion is that the movement of the bulk of the atmosphere at 30-40° south latitude is driven at the  100 hPa pressure level or thereabouts by differences in the partial pressure of ozone as it effects atmospheric temperature and density.

30

Above we see air temperature at the 30 Mb pressure level.The difference between summer and winter is greatly reduced. The range of variation is still greater in winter than summer. Only in winter do we see the characteristic north west to south east flow of the winter stratosphere. The patterns that are generated indicate strong  variations in the temperature and density of the air related to the changing composition of the air itself. However, it appears that this is a zone where air tends to either descend or ascend (blobs rather than streaks) rather than travel laterally except in the winter where the circulation is more typical of that which prevails all the way to the surface.

10

At the 10 hPa pressure level (above) the air is comparatively still. Only the strongest elements of the ozone driven winter circulation show up. Notice the south west to north east drift in summer as ozone rich air travels towards the zone of high surface pressure in the mid latitudes. The flow is north west to south east in winter. Here the temperature of the air relates to surface temperature in a manner that is not evident between 700 mb and 30 mb. The winter is cold and the summer warm as we would expect it to be. The land masses are especially warm. So, most surprisingly we see the signature of surface temperature at 10 hPa,  an elevation where 99% of the mass of the atmosphere lies beneath.The warmth of the air plainly relates to the interception of infrared radiation by ozone. Because the air is relatively still at this altitude the pattern of long wave emission from the surface shows up. If short wave radiation from the sun were a big influence on the ozone content and the temperature of the air at this altitude this pattern would be obliterated in daylight hours. We cant tell from this diagram whether this happens or not.

There could be no better demonstration of the response of the stratosphere to the infrared radiation emitted by the Earth than this phenomenon. We see it because the air is relatively still. The temperature of the ozonosphere that stretches from the surface through to the mesopause  is set, not by ionising  radiation from the sun but radiation from the Earth itself. There is little variation in the ozone content of the air or its temperature at 10 mb that we can link to the tenfold variation in EUV across the solar cycle. Plainly, it is incorrect to maintain that the temperature of the stratosphere is a function of ionisation by short wave radiation from the sun. This statement, to be found universally in climate texts and the works of the UNIPCC and in Wikipedia does not square with observation.

We must look for other modes of causation for the potent variations in the ozone content of the air in winter than variations in the quantum of short wave energy from the sun. Indeed, only one percent of the air above 80 km in elevation, the zone called the ‘ionosphere’, is actually ionised. This zone contains less than 1% of the mass of the atmosphere. There is no problem in supply and no problem in persistence of ozone below the 10 Mb pressure level. The ozone content of the atmosphere is relatively invariable and seems to be assured, but not so at the poles in winter where we see big variations in ozone partial pressure from year to year.

If we look for zones where atmospheric dynamics involve a dilution of the ozone content of the air that can account for the paucity of ozone over the polar caps, the marked variations in the ozone content of the air from week to week and year to year and the relative paucity of ozone in the southern hemisphere in general we need look no further than the polar vortex in the winter season.

THE ZONAL WIND

The zonal wind is that which is measured as rate of travel a along a line of latitude and is called the ‘u’ wind while the meridional wind is that measured along a line of longitude and is designated as the ‘v’ wind. At a point on the Earths surface a wind can be described in terms of both u and v. It is weak in both u and v it is probably descending or ascending.

u wind

If we inspect the last several diagrams they all indicate a strong stream of warm air travelling around the globe in a south easterly direction after 2014-09-17. The timing of this warming air flow is associated with a collapse of the ‘u’ component, a symptom of warming over the polar cap associated with an increase in the ozone content of the air  that is further associated with a collapse of surface pressure over the pole. This is a  taste of that which happens in the transition between winter and summer. It is also closely associated with the appearance of the ozone hole over Antarctica when NOx rich air of tropical origin circles in to occupy the entirety of the polar cap between 100 hPa and 50 hPa.

v wind

As we see above the ‘v’ component of the wind at 10 Mb is seasonally the mirror image of the ‘u’ wind. The meridional component falls away as the zonal wind component increases and vice versa.This is true on a seasonal as well as an episodic short term basis.

It is apparent that the movements of the atmosphere are tied to the partial pressure of ozone in the stratosphere. This is readily apparent when we study the movement of the air over the polar cap at 200 Mb as represented below. The first diagram shows the distribution of ozone over the Arctic on the 18th June 2016 as shown  here. The second diagram shows the temperature of the air and its circulation over the Arctic on the 18th June 2016 as shown here.  The third diagram simply shows the speed of the wind and locates the jet streams in relation to the distribution of ozone.

Ozone 18 June 2016

Temp June 18 2016

There is a core of cold air over the Antarctic within which pockets of ozone rich air are almost 20° C warmer. The conjunction of the two gives rise to the jet streams as we see below.

Jet stream

CONCLUSION

  • The movement of the air is intimately associated with contrasts in ozone density.  Speed of movement  is greatest at jet stream altitudes where contrasts in air temperature and density are most extreme.
  • Change in the intensity of the zonal wind that is associated with warming and cooling at the surface occur in response to the impact of ozone on atmospheric motions. In the northern hemisphere this phenomenon can be expressed in terms of the Arctic Oscillation, the North Atlantic Oscillation or the Northern Annular mode.In the southern hemisphere we talk of the Southern Annular mode. These are all recognised as prime modes of climate variation on annual and inter-decadal time scales. Climate science has no rationale for any of them and is unable to differentiate between climate change due to these entirely natural phenomena and that supposedly due to the activities of man.
  • Climate change is associated with change in the ozone content of the air that drives the intensity of polar cyclone activity, shifts in atmospheric mass, change in the zonal wind and the equator to pole temperature gradient.
  • Winter is the season where weather variability is greatest and this is clearly associated with change in the ozone content of the air. This is backed up by the observation that across all latitudes the month of greatest variability in surface temperature is either January or July as described here.
  • The circulation of the atmosphere is not driven from the equator but from the winter pole. There is evidence that the ozone content of the air at the poles depends upon solar activity via several different modes.

Unless we can separate out and properly account for the change in climate that is due to the fluctuating ozone content of the air we are in no position to quantify the change that many attribute to the works of man.  Green activists  are clearly ‘jumping the gun’. When we come to look at the manner in which the climate changes according to latitude it will be plain that all change, I repeat ALL change, is very likely attributable to natural modes of causation rather than the works of man and we will be able to say, ‘hand on heart’, or on a ‘stack of bibles’ and ‘with a very high level of confidence’ that we are speaking the truth.

 

 

 

 

 

 

 

 

 

 

27 COSMIC RAYS, OZONE AND THE GEOPOTENTIAL HEIGHT RESPONSE

Recent research suggests that there is a pathway for the generation of ozone at the poles via ionisation of the atmosphere by cosmic rays.

Cosmic rays ozone

From the conclusion: recent modelling shows that the O3 distribution in the extra-tropics is formed mainly from the local production, while the impact of the tropical ozone, transported by stratospheric dynamics, is substantially smaller. During winter conditions, when the amount of solar UV radiation at middle and high latitudes is strongly reduced, the only alternative source of O3 at these latitudes are highly energetic galactic cosmic rays (GCR) capable of penetrating into the lower stratosphere and troposphere.
However, the influence of GCR on the lower stratosphere has been ignored for a
long time, thought to be negligible at these levels. Through reassessment of the efficiency of main atmospheric constituents’ ion-ization by GCR and the ion-molecular reactions between the most abundant ions and neutrals, we have shown an existence of an autocatalytic cycle for continuous O3 production in the lower stratosphere and upper troposphere (near the level of maximal absorption of GCR, known as Pfotzer maximum). The quantity of O3, produced by the positive ion chemistry, has the same order of magnitude as the mid-latitude steady-state ozone profile. This is an indication that the lowermost ozone profile could be substantially distorted by the highly energetic particles.

If Cosmic Rays can result in ozone production at the poles it links solar activity and climate in a direct and powerful fashion. Ozone drives of the evolution of planetary winds and cloud cover from the winter hemisphere. The signature of its activity is written into the surface temperature record.

Don’t hold your breath while you wait for climate scientists to adopt these ideas. The current generation of climate scientists  have no interest in discovering the origins of natural modes of climate variation even though these modes have been in operation since the dawn of time. Some proponents of the anthropocentric global warming argument now maintain that all climate change (of whatever description) is due to the impact of man on the planet. For others the origin of natural modes of climate variation must remain mysterious and unknowable. If it seems that something out of the ordinary happens it must be ‘an internal oscillation’ or the result of ‘an exchange of energy between the ocean and the atmosphere’, neither of long term consequence unless it can be suggested that these internal modes are getting out of whack due to the influence of man.

This seems to be the current point of view. Mans responsibility, for the good of succeeding generations, is to avoid warming, cooling, drought, flood, damaging radiation, big tides, big waves and typhoons by reducing carbon emissions. Carbon dioxide, the raw material for plant photosynthesis, the original building block for life on the planet, is nasty. The imperative is to stop emitting carbon dioxide wherever we can in order to stop ‘climate change’.  The words ‘climate change’ now equates to ‘the addition of carbon dioxide to the atmosphere due to the activities of man in burning fossil fuels’. If its not scarce, we must nevertheless avoid burning it. We must reduce our energy use to that which is sustainable, not in terms of the amount of the resource available but in terms of the desired state of the atmosphere. If we have this resource we must keep it in the ground even though others are crying out for electric light and the means to do things other than by the sweat of their brow. We will deny them the use of coal for their own good.

Originally, the notion was that the planet warmed when CO2 levels increased. Now, in the absence of warming,  carbon dioxide is responsible for change in the status quo. Where have we heard this sort of argument before?

It is in the nature of those who hold strong ideas that they will seek to reward and give preferment to those who agree with them.

It is those who can capture our imaginations who will be paid from the public purse to do so again and again. Adolph Hitler and Tim Flannery. ‘Mein Kampf’ and ‘The Weather Makers’.  The free lunch. Give the man a Beer. Let’s recommend him for a Nobel. Al Gore, ‘An Inconvenient Truth’. Do something for the planet. Stop breathing.

WHAT ARE COSMIC RAYS?

Wikipedia: Cosmic rays are immensely high-energy radiation, mainly originating outside the Solar System.They may produce showers of secondary particles that penetrate and impact the Earth’s atmosphere and sometimes even reach the surface. Composed primarily of high-energy protons and atomic nuclei, they are of mysterious origin. Data from the Fermi space telescope (2013) have been interpreted as evidence that a significant fraction of primary cosmic rays originate from the supernovae of massive stars. However, this is not thought to be their only source. Active galactic nuclei probably also produce cosmic rays.

The kinetic mass-energy of massive particles can increase drastically due to relativistic effects. Through this process, the particles can acquire tremendously high energies, significantly higher than those of even the highest-energy photons detected to date (whose energy depends solely on frequency and not on speed, as photons always travel at the same speed). The Oh-My-God particle, the highest-energy fermionic cosmic ray detected to date, had an energy of about 3×1020 eV, while the highest-energy gamma rays to be observed, very-high-energy gamma rays, are photons with energies of up to 1014 eV. Hence, the highest-energy detected fermionic cosmic ray was around 3×106 times more energetic than the highest-energy detected cosmic photons.

Of primary cosmic rays, which originate outside of Earth’s atmosphere, about 99% are the nuclei (stripped of their electron shells) of well-known atoms, and about 1% are solitary electrons (similar to beta particles). Of the nuclei, about 90% are simple protons, i. e. hydrogen nuclei; 9% are alpha particles, identical to helium nuclei, and 1% are the nuclei of heavier elements, called HZE ions. A very small fraction are stable particles of antimatter, such as positrons or antiprotons. The precise nature of this remaining fraction is an area of active research. An active search from Earth orbit for anti-alpha particles has failed to detect them.

Ultra-high-energy cosmic rays have energies comparable to the kinetic energy of a 90-kilometre-per-hour (56 mph) baseball.

When cosmic rays enter the Earth’s atmosphere they collide with atoms and molecules, mainly oxygen and nitrogen. The interaction produces a cascade of lighter particles, a so-called air shower secondary radiation that rains down, including x-rays, muons, protons, alpha particles, pions, electrons, and neutrons. 

Typical particles produced in such collisions are neutrons and charged mesons such as positive or negative pions and kaons. Some of these subsequently decay into muons, which are able to reach the surface of the Earth, and even penetrate for some distance into shallow mines. The muons can be easily detected by many types of particle detectors, such as cloud chambers, bubble chambers or scintillation detectors.

MEASUREMENT OF THE INCIDENCE OF COSMIC RAYS

Wikipedia:  In 1912, Victor Hess carried three enhanced-accuracy Wulf electrometers to an altitude of 5300 meters in a free balloon flight. He found the ionization rate increased approximately fourfold over the rate at ground level. Hess ruled out the Sun as the radiation’s source by making a balloon ascent during a near-total eclipse. With the moon blocking much of the Sun’s visible radiation, Hess still measured rising radiation at rising altitudes. He concluded “The results of my observation are best explained by the assumption that a radiation of very great penetrating power enters our atmosphere from above.” In 1913–1914, Werner Kolhörster confirmed Victor Hess’ earlier results by measuring the increased ionization rate at an altitude of 9 km.

Hess received the Nobel Prize in Physics in 1936 for his discovery.

Flying 12 kilometres (39,000 ft) high, passengers and crews of jet airliners are exposed to at least 10 times the cosmic ray dose that people at sea level receive. Aircraft flying polar routes near the geomagnetic poles are at particular risk.

DEPENDENCY OF COSMIC RAYS ON THE ACTIVITY OF THE SUN

The flux of incoming cosmic rays at the upper atmosphere is dependent on the solar wind, the Earth’s magnetic field, and the energy of the cosmic rays. At distances of ~94 AU from the Sun, the solar wind undergoes a transition, called the termination shock, from supersonic to subsonic speeds. The region between the termination shock and the heliopause acts as a barrier to cosmic rays, decreasing the flux at lower energies (≤ 1 GeV) by about 90%. However, the strength of the solar wind is not constant, and hence it has been observed that cosmic ray flux is correlated with solar activity.

In addition, the Earth’s magnetic field acts to deflect cosmic rays from its surface, giving rise to the observation that the flux is apparently dependent on latitude, longitude, and azimuth angle. The magnetic field lines deflect the cosmic rays towards the poles, giving rise to the aurorae.

GCR and sunspot no

RELATIONSHIP BETWEEN COSMIC RAYS AND SUDDEN STRATOSPHERIC WARMINGS

Citation: Osprey, S., et al. (2009), Sudden stratospheric warmings seen in MINOS deep underground muon data as reported here:  http://discovery.ucl.ac.uk/148293/1/2008GL036359.pdf

The rate of high energy cosmic ray muons as measured underground is shown to be strongly correlated with upper air temperatures during short-term atmospheric (10-day) events. The effects are seen by correlating data from the MINOS underground detector and temperatures from the European Centre for Medium Range Weather Forecasts during the winter periods from 2003– 2007. This effect provides an independent technique for the measurement of meteorological conditions and presents a unique opportunity to measure both short and long-term changes in this important part of the atmosphere. 

Do you think you could explain all that to your grandmother while its still fresh in your mind?

RELATIONSHIP BETWEEN THE INCIDENCE OF COSMIC RAYS AND GEOPOTENTIAL HEIGHT ANOMALIES IN THE ARCTIC IN 2016

In winter the upper atmosphere is colder due to the descent of very cold ozone deficient air from the mesosphere. Temperature of the atmosphere in the Arctic

The displacement of this core of cold air by a mushrooming ascent of ozone rich air results in much higher temperatures over the polar cap. The mushrooming effect  centres on about 50° of latitude  as ozone is gathered in zones of low surface pressure associated with warm ocean surfaces initiating wholesale ascent. When the ascending air reaches 30 hPa, 10 hPa and 1 hPa it spreads laterally to occupy the region of the polar cap. This has been a ‘mystery’ for climate science for a generation of more. It appears that warming air is not connected with the presence of ozone in the minds of many observers. Are they turning a blind eye? Are they incapable of rigorous inquiry? Do they simply assume that the temperature of the air is  the result of the absorption of short wave radiation from the sun? Is this commonly seen assertion a required article of faith? Who knows?

The warming of the stratosphere is tracked via the increase in geopotential height between 50 and 80 degrees of latitude as seen in the diagram below. For the purposes of comparison I have lined up data for cosmic rays and geopotential height anomalies across a common time interval.The question is this: are these two data streams related?

RELATIONSHIP BETWEEN THE INCIDENCE OF COSMIC RAYS AND GEOPOTENTIAL HEIGHT ANOMALIES

Neutron count and GPH anomaly

The period extends from January to mid June in 2016. On the face of it, galactic cosmic rays could be making a contribution to the periodic proliferation of ozone resulting in episodic increases in geopotential height.There are enough coincidences to suggest that this might be the case. The fact that these increases are much greater in winter is consistent with the ease of disturbance of the polar atmosphere at a time of the year when temperature is at a low base, the connection to the mesosphere is tenuous and dependent on atmospheric pressure. Winter is the time of the year where ozone proliferates. But, we  must note that there are warming events that are not associated with the incidence of galactic cosmic rays and that peaks in GCR activity do occur without an obvious atmospheric response. Plainly there is another factor involved that may compete with or perhaps complement the activity of GCR.

 

The loss of surface pressure over Antarctica over the last seventy years represents a one way transfer of atmospheric mass from high southern latitudes that requires an external driver capable of retaining atmospheric mass against the force of gravity. The only force capable of retaining new states of this sort is electromagnetic. If there is indeed a response to electromagnetic effects it should be seen at times when geomagnetic activity is high.

In the diagram below that relates to the southern pole we can see that peaks in the solar wind, as indicated by the Kp Index (lowest series) are not necessarily conjunctional with peaks in neutron counts. In fact in many instances, neutron counts are in a trough as the kP index peaks.

GA and Cosmic rays and GPH

The green lines in the diagram locate instances where there is an atmospheric response that is conjunctional with geomagnetic activity in the absence of cosmic  ray activity. If we combine the incidences where cosmic ray indices peak in conjunction with increased GPH with the instances where the kP index peaks in conjunction with increases in GPH we can account for each and every heating episode.

CONCLUSION

This analysis is consistent with the notion that both the solar wind and cosmic rays can be independently influential in determining  the partial pressure of ozone engendering an increase in geopotential height. If geomagnetic activity slows the zonal wind that acts to reduce the influx of mesospheric air, then ozone partial pressure will increase and the geopotential height response will appear. If  cosmic rays enhance ionisation and ozone is produced this will have the same effect.If the atmosphere warms due to the slowing of the zonal wind then the the galactic cosmic ray enhancement of ozone cuts in in every instance regardless of whether there is a conjunctional peak in galactic cosmic ray activity. So, these conditioning influences do tend to work hand in hand in a complementary fashion and equally, they can conflict.

The limit to the shifts in atmospheric mass, however engineered, is set by gravity. The extent to which this process is capable of establishing different states,so far as surface pressure is concerned,  depends  upon the pressure of the solar wind, known to vary on 100 and 200 year time scales. The existence of the phenomenon whereby atmospheric mass shifts over long time scales tells us that external influences are involved.

All fluctuations in climate on all time scales from the very short to the very long,  whether we see them as internal fluctuations or externally imposed, can be described in terms of surface atmospheric pressure, wind and cloud cover. It is the circulation at the poles in winter that drives these changes, not the relatively invariable rate of heating in near equatorial latitudes. Climate science is turned on its head.

26 WHERE IS OZONE ? PART 2 EROSION

Chapter 25 established that, in low latitudes, the stratosphere below about 40 kilometres in elevation is a relatively safe environment for ozone. All the extreme ultra-violet and X ray radiation that is responsible for the ionosphere  is used up above 60 km in elevation.  Below 40 kilometres in elevation ozone partial pressure builds during daylight hours indicating a relatively safe environment for what is admittedly a tiny amount of ozone in air that is in any case extremely rarefied.

To resist photolysis in the stratosphere the ozone molecule must avoid radiation in the UVB and shorter spectrum. At any other than near vertical sun angles the atmospheric path is too long to allow much UVB to reach the surface but the small amount of ozone in the stratosphere creates what is in fact just a very coarse sieve. If you had such a sieve in the kitchen some of the spaghetti would leak through with the water when you drain the water off. The population of runners (ionising radiation)  is small and the obstacles (ozone) are widely spaced.

As the sun sinks towards the horizon in winter, ozone proliferates.This, and the ability of the ozone molecule to absorb infra-red emanating from the Earth is the reason why the upper stratosphere at 1 hPa is warmer over the poles than at the equator in summer despite the very low angle of the sun and very little cooler in winter when the sun is below the horizon. It is not ionising radiation that heats the stratosphere, it is ozone absorbing long wave infrared from the Earth.

The existence of a tropopause in high latitudes during the polar night when there is patently no short wave radiation to be had, testifies to the importance of the status of ozone as a  agent for heating the air via absorption of outgoing infrared.  The notion that the temperature of the stratosphere is determined by the absorption of short wave radiation from the sun is universally accepted and promoted  because it suits a certain narrative but it is nonetheless false. Above the mesopause yes, below the mesopause no. The mesopause marks the point where the ionosphere begins.

In the southern hemisphere the polar night prevails between March and September. See the sonde data below. Note the inflection in the temperature curve at the elevation where the partial pressure of ozone increases, at some 9 kilometres above the surface, plainly due to ozone heating. The fall in the temperature of the air above 12 kilometres in elevation is due to the descent of very cold air from the mesosphere. That air is relatively ozone rich by comparison with air that arrives laterally from the region of the very cold tropical tropopause that is always ozone poor. Some intruding tongues of ozone poor air are evident, especially at 15 kilometres in elevation.There is a great deal of horizontal movement of the air in the stratosphere, in fact just above the tropopause, more than anywhere else. The failure to recognise the importance of that movement and its origins has been fatal for climate science. The ‘annular modes phenomenon’ is inexplicable without an understanding of the dynamics at work in the stratosphere.

Antarctica 3d June

In this stratospheric ‘safe environment’ for ozone one might expect that the ozone content of the atmosphere would increase in direct response to the length of the atmospheric path.In the absence of any other control mechanism ozone partial pressure should  peak at the surface of the planet and attain its highest partial pressure over the poles. Alas, there are, at a minimum, two other control mechanisms at work. One is NOx emanating from the surface of the planet. The second is via the influx of ozone starved mesospheric air  at the winter pole. The rate of influx at the pole depends upon surface pressure that is in turn dependent non the collective activity of polar cyclones that surround the pole.

Ozone partial pressure in high latitudes may  build under the impact of cosmic radiation. This activity is modulated by the temperature of the air over the pole and the incidence of cosmic rays is modulated by the solar cycle and the solar wind that is to some extent independent of the sunspot cycle.  Since there is no apparent cycle in atmospheric pressure over the Antarctic pole that is in tune with the solar cycle the cosmic ray effect must be small, at least at solar cycle intervals. Nevertheless cosmic rays are much more in evidence at solar minimum and it is possible that their ozone production capacity becomes a factor of increasing importance in promoting short term shifts in atmospheric mass during periods of very low solar activity.

CHEMICAL EROSION OF OZONE BY  NOx

NOx is produced by fossil fuel combustion, biomass burning, decomposition in soils and lightning. NOx is a generic term for the mono oxides of nitrogen NO and N2O. Both are active in the catalytic destruction of ozone. The  lifetime of these compounds increases with elevation so that they are more potent at 10 km elevation than at the surface.

Below we compare the global distribution of NOx with that of ozone at 100 hPa. Source:http://macc.aeronomie.be/4_NRT_products/5_Browse_plots/1_Snapshot_maps/index.php?src=MACC_o-suite&l=TC

Relationship between NOx and Ozone at 100hPa

It is evident that in equatorial latitudes, where NOx is most abundant, ozone is almost completely depleted. The patterns created by air of different NOx concentration reveal the movement of the atmosphere at 100 hPa. For the purpose of comparing the two diagrams a white line traces the edge of apparent NOx presence and this line is applied to the ozone diagram taking care to match the latitudes correctly. The two fit like a glove. Notice that it takes  only trace levels of NOx in the ozone deficient southern hemisphere to produce a marked depletion in the ozone content of the air in the mid latitudes. Although it is not apparent in the NOx content of higher latitudes in the southern hemisphere the pattern of depletion of ozone  in the southern hemisphere suggests that the influence of NOx extends all the way to the southern pole. This should be no surprise given the role of NOx in producing the Antarctic ‘ozone hole’ at the time of the final warming of the Antarctic stratosphere between September and November as described in chapter 23. Here we are  seeing the precursor environment for the Antarctic ozone hole in spring.

Below, at the 50 hPa pressure level, an elevation of 20 kilometres, is mapped the distribution of NOx in the southern hemisphere on the 12th day of the month between February and October 2015.

Notice the camera iris like structure of the developing Antarctic Ozone hole.

50hPa SH

Below, and again from a polar cap perspective, this time centred on the month of April, we have nine months of single day data for NOx in the northern hemisphere at 50 hPa. Notice the strong presence of NOx at 50 hPa, much stronger than in the southern hemisphere. Notice the camera iris structure that appears on 12th March and its displacement off the pole a month later. Yes, there is an ozone hole in the northern hemisphere an artefact of the final warming when the descent of mesospheric air rapidly falls away due to swiftly rising surface pressure over the pole.

50hPa NH

Below we see the distribution of NOx at 100 hPa in the northern hemisphere. The increase in atmospheric NOx  that presses in from low latitudes to flood across the entire hemisphere is plainly a summer phenomenon. Notice the wave like structures representing a flow of cold NOx rich air towards higher latitudes.

NOx at 100hPa NH

Below  we have the distribution of NOx in the southern hemisphere at 100 hPa from a polar cap perspective.

NOx SH 100hPaThe ocean dominant southern hemisphere is plainly  less influenced by the presence of NOx at 100 hPa  than is the northern hemisphere. Nevertheless there is NOx present at this level in October contributing to the Antarctic ozone hole in that year.

T Atmos over equator

The distribution of NOx relates to the pattern of surface pressure because it arrives with very cold tropical air characterised by relatively high surface pressure. The wave like pattern of intrusions of  NOx rich air from the tropics show up in ozone profiles as an ‘ozone hole’ above the point where we have a tropopause in high latitudes, about 8 kilometres in elevation. The diagram above reminds us that the air between 150 hPa and 50 hPa in the tropics is cooler than -70°C. It is cooler because of its low ozone content due to erosion by NOx.

On the basis of the diagrams above we can note:

  • There is an appreciable presence of NOx at 50 hPa across the northern hemisphere from February through to August. This enhanced presence in the summer season is consistent with biomass burning and the processes of soil decomposition that are more active in summer.
  • There is no parallel presence of NOx at 50hPa in the relatively land deficient southern hemisphere from July onward but there is the appearance of anomalously  high concentrations of NOx around the entire globe at about 70° south latitude expanding inwards to occupy the entirety of the polar cap in September and October. This is the Antarctic Ozone hole, a natural feature of the Antarctic atmosphere, not a creation of man via the release of chlorofluorocarbons. That hole will wax and wane with change in atmospheric dynamics related to changing ozone partial pressure over time.
  • It is not NOx emanating from below that is the root cause of the generalised ozone deficiency in the southern hemisphere. The only other source of ozone depletion in the southern hemisphere is via straight dilution by a very active polar vortex.
  • High levels of NOx in the Arctic atmosphere manifest in March and April  giving rise to the northern hemisphere equivalent of the Antarctic Ozone hole, briefly  manifesting as part of the ‘final warming’ process but rapidly dissipated. It simply does not hold position due to the geography of land and sea. If the Arctic was a land mass surrounded by sea things would be different.

 

LATERAL INCURSIONS IN THE OZONE PROFILE

Summit Station is located on the Greenland Ice Shelf at 70° north latitude where the partial pressure of ozone attains a strong peak in winter.  This location experiences wide fluctuations in the ozone content of the air according to the origin of the air travelling overhead. Incursions of mid latitude air can produce gaps in the ozone profile as seen below. Notice that the tropopause at this relatively high latitude is located at about 7 kilometres in elevation. The decline of temperature with altitude is reversed at 7 km where the ozone content of the air is a mere 3- 4 parts per million. The ability of ozone to transfer energy acquired by absorption in the infra-red is dependant on the ‘density of the molecular pack’ in a pass the parcel type situation. Notice that an increase in ozone partial pressure at the 50 hPa level is responsible for another small temperature advance. The atmosphere in  high latitudes is never still in winter. The temperature of the air in the stratosphere is much influenced by the descent of mesospheric air  from above that is being actively mixed into the profile as well as the air that arrives from lower latitudes. This pattern of movement is reflected in the meandering of the jet stream that is itself a product of steep gradients in ozone partial pressure, air temperature and density.

Summit station

Below we have sonde data for ozone partial pressure at Summit Station between late January and September.Summit Stn Ozone profiles

This diagram indicates what a localised, non polar, ozone hole can look like in terms of reduced ozone partial pressure. By September, as a product of the increase in the NOx content of the air in summer the ozone profile is extensively eroded below the 50 hPa pressure level (20 km in elevation) so as to establish an ozone maximum at 50 hPa rather than at 100 hPa (15 km) the level that prevails in winter.The green line that shows ozone partial pressure on 22nd April shows a twin peaks in ozone partial pressure due to a deep incursion of mid latitude air centred at an elevation of 15 km.

In the absence of incursions of mid and low latitude air, peak ozone partial pressure is established at 100 hPa or 15 kilometres in elevation.When NOx rich air arrives from low latitudes it is active in reducing ozone partial pressure primarily at and below the 50 hPa  pressure level.

Notice the relative  similarities in the ozone profile below about 7.5 km in elevation. The marked increase in the partial pressure of ozone above this level reverses the decline in atmospheric temperature with elevation creating the ‘tropopause’. Notice that the ‘tropopause’ in no sense marks a boundary between air that has ozone and air that does not. The tropopause is the interface between two types of air, one with NOx and one without NOx. It moves up and down with the seasons according to the presence or absence different sorts of air. The tropopause is a function of the chemistry that is introduced via different parcels of air with very different characteristics. Movement is induced by density differences in line with different ozone partial pressures. The patterns in the juxtaposition of different sorts of air masses is imposed by the west to east rotation of the atmosphere that is most active at the poles.

The diagram below  shows the ozone profile at a number of different latitudes including near equatorial situations where the thickness of the near surface NOx rich layer is greatest.

Ozonesondes

Pago Pago and Suva exhibit peak ozone partial pressure at  33 kilometres in elevation. That is the thickness of the NOx rich layer.  The thickness of the layer relates to the extent of convection in the tropical atmosphere. Water vapour is also antagonistic to the presence of ozone.

In general ozone is present throughout the atmospheric column even in the near surface atmosphere and is capable of warming the air via the absorption of infra-red radiation at any and all levels.  In higher latitudes where the NOx carrying layer is thin ozone partial pressure rises from about 7 km in elevation strongly influencing the temperature of the air and its density. The lateral contrast  in ozone and air density across the ‘vortex’ gives rise to the strongest winds except those seen in the upper stratosphere in the polar vortex itself. These winds are much stronger than anything that manifests at the surface of the planet except for tropical cyclones of the stronger variety. It should be plain that it the severe gradients in ozone partial pressure in the vicinity of the ‘tropopauses’ (and there can be many) that can establish at any elevation between 7 and 20 km that drives the circulation of the air rather than surface heating in the tropics.That is a ‘primitive’ notion that appears to be plausible. We only need to observe the jet streams to see that reality is otherwise.

NATURE OF THE OZONE PROFILE IN THE ATMOSPHERE

We can conceive of an ‘ozonosphere’ that begins at the mesopause and extends to the surface of the planet. The upper limit of the ozonosphere is the mesopause. At that point the pressure of ionisation of the ozone molecule eases to the degree necessary to allow a sufficient population of ozone molecules to amass so as to warm the atmosphere via the absorption of infra-red. Heating due to the ionisation process itself increases with elevation. It is for this reason that air temperature increases in the ionosphere and the thermosphere. The contribution to atmospheric heating due to the photolysis of ozone  falls away as the atmospheric path lengthens and may be considered to be negligible at the tropopause and in higher elevations at higher latitudes.

Below the mesopause ozone partial pressure increases as the surface is approached and the pressure of ionisation falls away.  It falls away due to the depletion of wave lengths shorter than 315 nm at the upper limit of the UVB part of the spectrum. The ozone content of the atmosphere is therefore in the fist instance  a function of sun angle and the corresponding length of the atmospheric path to absorb short wave lengths a function of latitude markedly increasing in winter. Over the polar cap other dynamics come into play. Closer to the surface, yet other dynamics involving NOx come into play according to latitude. Then in springtime at the poles all three influences produce the curiosity of the ozone hole, an entirely natural circumstance associated with the collapse of the winter circulation as surface pressure at the poles rapidly falls away.

UV spectrum

The descent of mesospheric air over the polar cap is required for geostrophic balance due to the continuous ascent of ozone warmed air via the ‘polar vortex’ a high speed cone like circulation that manifests from 100 hPa through to the 1 hPa on the margins of descending cold mesospheric air. There is the associated phenomenon whereby ozone tends to accumulate in zones of low surface pressure over the oceans in mid and high latitudes mushrooming towards the limits of the stratosphere on a periodic basis (a 9-10 day cycle) and at times displacing the vortex from its position of centrality over the pole. The northern vortex in early winter finds a conducive home over Siberia and East Asia rather than over the Arctic Ocean. These phenomena elevate ozone partial pressure at 10 hPa and higher giving rise to amplified variations in temperature over time. The temperature swings increase with increasing altitude as a consequence of convection. Meteorologists map this phenomenon as increased Geopotential Height. Climate theorists have become fond of the notion of ‘planetary waves’, 1, 2 and 3 that relate to the pattern of increase in geopotential height.That particular theory is  gains credibility due to the inability to observe that ozone absorbs infrared and that this is the source of heating in the stratosphere.  If one maintains that the stratosphere is heated by short wave radiation from the sun on an exclusive basis it is difficult to  conceive  that differences in ozone partial pressure could  drive the global circulation of the air from high latitudes in the winter hemisphere.

CONCLUDING REMARKS

The current conceptions as to the nature of the troposphere and the stratosphere are at the root of our inability to understand the ongoing changes in surface climate.

It is the stability and strength of the southern vortex that accounts for the relatively low ozone content of the southern ozonosphere.

Mixing occurs across the vortex and in particular at upper and lower elevations modulating the ozone content of the air across the entire ozonosphere from the active winter pole but with greatest effect in the southern hemisphere.This is simply a matter of the distribution of land and sea.

Without the erosive activity of NOx e in the near surface atmosphere peak ozone partial pressure would be established at the surface of the planet. The ozone maximum at any pressure level is not a function of photolysis and recombination phenomena within an ‘ozone layer’ that establishes at some level within what we have come to call the ‘stratosphere’. Significant ionisation only manifests in the D layer of the ionosphere during daytime hours above 60 km in elevation. Below  60 km , the chief molecule that is ionised is ozone itself via the activity of UVB that is almost entirely used  up in the process. It follows that the ozone content of the air increases with the length of the atmospheric path. The concept of an ‘ozone layer’ is a work of an imagination  that is uninformed by observation.

In the near surface atmosphere NOx proliferates most strongly over land in the northern hemisphere. It actively depletes ozone and especially so in lower latitudes as a function of surface heating  and the rate of evaporation near the equator.

The relatively high ozone content of the atmosphere in the northern hemisphere is due to the weakness and instability of the  northern polar vortex. This in turn gives rise to marked variations in air temperature over the polar cap in winter (and only in winter). NOx actively sculpts ozone from below  in the northern hemisphere but the weakness of the northern vortex ensures that ozone partial pressure is maintained at much higher levels in the northern hemisphere than prevails in the south.

In high latitudes, a very much lower ‘tropopause’ and  therefore much enhanced ozone partial pressure aloft gives rise to very low surface pressure. The reverse is the case in low latitudes. Continuous heating of the atmospheric column in the tropics creates a very light low pressure zone of ascending air but this pales into insignificance when it is compared to the situation at 60-70° south latitude where Polar Cyclones propagate downwards from upper air troughs. The circulation of the lower atmosphere proceeds according to the pressure differentials that are so established. That circulation is the primary determinant of surface temperature impacting the equator to pole temperature gradient.

The most severe differences in local air density manifest across the vortex near the poles. Changes in this domain are more vigorous than elsewhere.  Over extended time scales change in the Antarctic is enormous by comparison with the Arctic.

At any point on the Earths surface the synoptic situation changes on all time scales. The synoptic situation relates to the shape of the ozonosphere. Its shape is the product of influences from above, from below and also sideways. As the shape of the ozonosphere changes so does surface weather and climate.

thin laminae stratospheric intrusions

Source http://journals.ametsoc.org/doi/pdf/10.1175/1520-0469(1967)024%3C0569:COTVDO%3E2.0.CO%3B2

Above we see ozone profiles at Albuquerque New Mexico at 35° north latitude reflecting day by day changes in the height of the tropopause and the ozone profile as air masses of tropical and polar origins pass by. It is apparent that change occurs predominantly in the medium that we have assumed to be be both stratified and quiescent. These changes that are the essence of the ‘synoptic situation’ gives rise to the nature of weather and climate on all time scales. Accordingly, the greatest changes in surface temperature occur in the middle of winter  in line with the extreme flux in the ozone content of the air in that season.

Climatology has much to learn and unfortunately a lot to unlearn including the notion that the temperature at the surface is a matter of ‘radiative forcing’ by greenhouse gases. This notion is too simple by far.

25 WHERE IS OZONE? PART 1 IONISATION

Dr Tony Phillips of NASA maintains that “Understanding the sun-climate connection requires a breadth of expertise in fields such as plasma physics, solar activity, atmospheric chemistry and fluid dynamics, energetic particle physics, and even terrestrial history. No single researcher has the full range of knowledge required to solve the problem”  http://science.nasa.gov/science-news/science-at-nasa/2013/08jan_sunclimate/

In fact it requires the efforts of a generalist, a synthesiser, like a bird that gathers a diversity of material to make its nest, to put this story together.

THE COMPOSITION OF THE ATMOSPHERE

Nitrogen and Oxygen together represent 99% of the volume of the atmosphere.  Neither ozone at up to 30 ppm nor CO2 at 400 part per million are in the list of the top eight atmospheric gases.From Wikipedia we have:

atmosphere

The wave lengths emitted by the Earth are centred about the 9-10 um where ozone absorbs.  It also absorbs at 5um. Because ozone, like water vapour is not uniformly distributed it gives rise to differences in air temperature and density. We are familiar with the manner in which the release of latent heat energises tropical cyclones. Climate science is blind to the manner in which ozone energises the atmosphere despite the realisation more than 100 years ago that total column ozone maps surface pressure. Carbon dioxide is another potent absorber of long wave radiation from the Earth but it is almost uniformly distributed. As such it plays no part in generating winds. It is differences in air density in the horizontal domain that drives the winds. The strongest winds are to be  found above the tropopause due to marked differences in the ozone content of the air in the horizontal domain between the 300 hPa and the 50 hPa pressure levels.

The movement of the air is influential in determining the equator to pole temperature gradient and cloud cover. High pressure cells are relatively cloud free environments. Anything that increases surface pressure in the mid latitudes expands the relatively cloud free zone and warms the planet.

In all latitude bands surface temperature variation is greatest in the winter and the range of variation increases from the equator to the poles. This points to a polar dynamic as being  responsible for natural climate variation. In the waxing and waning of polar cyclone strength according to the ozone content of the air we have a dynamic that can produce shifts in atmospheric mass. Shifts in mass are responsible for change in the planetary winds. This alone will change surface temperature.

It is vital therefore that we have a good understanding of how ozone comes to be, its distribution and the circumstances that will change its distribution and partial pressure.

PHOTOLYSIS

Ionization, photolysis, photo-dissociation and photo-decomposition and are all terms that are used to indicate a chemical reaction where electrons are dislodged from molecules by photons. How far this process extends into the lower atmosphere is a matter of interest.

A photon is a hypothetical unit of radiant energy.  Photolysis is defined as the interaction of one or more photons with one target molecule. Any photon with sufficient energy can affect the bonds of a chemical compound.  A photon’s energy relates to its wave length. Only the shorter wave lengths have the necessary energy to decompose the smallest atmospheric molecules.

SUSCEPTIBILITY TO PHOTOLYSIS

Because larger atomic weight molecules are more susceptible to photolysis than smaller atomic weight molecules only the smaller atomic weight entities can maintain their integrity at the highest altitudes.

In order of increasing atomic weight we have:    Hydrogen = 2.016,    Helium = 4.002602, Methane = 16.044,   Steam = 18.02,  Nitrogen = 28.0134,  Nitric Oxide = 30.006,  Oxygen = 31.9988,  Ozone= 47.998

Since short wave radiation is progressively ‘used up’ in its passage though the atmosphere it might be expected that the ozone content of the air would increase as the rays that disassociate ozone were used up. The ozone content of the air would then increase all the way to the surface of the planet. Part 2 will explain why that is not the case. This chapter explains where ozone is to be found above the tropopause and why that is so. An understanding of this question is vital if we want to comprehend the movement of the air and the origins of natural climate change. More than 100 years ago it was observed that ozone maps surface pressure. Surface pressure variation is the essence of weather on all time scales.

UV spectrum

The ultraviolet spectrum includes wavelengths shorter than 400nm. These wave lengths can account for 8% of the energy that comes from the sun but only a fraction of that under quiet sun conditions. The power in the EUV spectrum varies tenfold over the course of a solar cycle.

It is only the very short wave radiation in the EUV spectrum, x-rays and gamma rays that is capable of disassociating nitrogen.  EUV is wholly absorbed in photolyzing oxygen and nitrogen above 80km in elevation in the ionosphere.

A wave length shorter than 240 nm is required to disassociate oxygen.

Ozone is susceptible to ultraviolet waves shorter than 320 nm.  This includes UV-C (220-290 nm) and UV-B (290-320 nm).

Wave lengths longer than 320 nm have relatively free passage through the atmosphere.  There is insufficient ozone in the southern hemisphere to screen out wave lengths in the UVB and perhaps part of the UVC.  This has important consequences for plants and animals because this radiation penetrates deeply into the cells of an organism. Human skin containing low levels of melatonin is particularly susceptible. If ones sees blood vessels below the skin, so too does UVB.

It is change in atmospheric ozone that determines the degree of penetration of short wave radiation to the surface. Cold air from high latitudes comes with more ozone aloft producing low surface pressure. When surface pressure is lower the risk of UV exposure is also lower because of the superior ozone content of the upper air. Climate change has involved a southward movement of the high pressure belts in the southern hemisphere, reduced rainfall in southern Australia and also an increase in the UV risk factor.

The UV risk factor at the surface is time of day and time of year specific and it also depends upon cloud cover. The processes of atmospheric ionisation are similarly focused on just part of the atmosphere and the intensity of the process varies according to the time of the year and the stage of the solar cycle. The diagram below is instructive in this respect.

UV risk

WHERE DOES THE IONISATION OF THE ATMOSPHERE OCCUR?

Australian researchers contribute to the global effort in the field of radio astronomy. The diagram reproduced below appeared in a presentation delivered in 2012 to a CAASTRO EoR Radio Astronomy workshop in Sydney by  Dr Mike Terkildsen of IPS Radio and Space Services as reported here: http://www.spaceacademy.net.au/env/spwx/raiono.htm

Ionization

Note that the fall off in the electron concentration above 300km in elevation relates to the decline in the number of particles that are candidates for ionization.

I quote:  The ionosphere is what we term a weak plasma, as only one percent of the neutral atoms in the upper atmosphere are ionised. Traces of ionisation exist from about 80 km to 1000 km in altitude, with the peak ionisation occurring around an altitude of 300 km. The maximum ionisation can vary from about 1010 to 1013 electrons per cubic metre.

Ionospheric ionisation is controlled by extreme ultraviolet and soft x-ray flux emitted by the Sun. The lower regions of the ionosphere show almost exclusive solar control in that the ionisation at any time is proportional to some function of the solar zenith angle at each point as is seen below.

Vertical total electron count

Mileura is a radio observatory located in the Murchison district in Western Australia at 26° south latitude where radio wave interference is light due to remoteness from centres of population. We see the dependence of VTEC (Vertical Total Electron Count) at the Mileura observatory on time of day and the state of the solar cycle. Notice the dramatic difference between daylight and dark.  The difference between the maximum in the solar cycle and the minimum is as much as between day and night. There is a very strong impact of the angle of the sun that is reflected in the VTEC for the month of June.

This diagram helps us to understand that latitude impacts the degree of ionization of the atmosphere. Accordingly, at latitudes greater than 23° north or south the winter season will see a marked reduction in the vertical total electron count. We know that ozone partial pressure peaks in the high latitudes of the winter hemisphere. The availability of building blocks in terms of free atoms of oxygen to form ozone is least in winter. Ozone is not built in high latitudes via the dissociation of the oxygen molecule by UV light. It is transported there. The increase in the ozone content of the air in high latitudes in winter is not due to transport phenomena because the act of transport can not increase the concentration of any particular constituent. That increase in winter is due to low disassociation rates.

The altitudes where ionization maxima occur are referred to as the D, E and F regions.  The D region sees strong ionization only in daylight hours.

COSMIC RAYS AND A POSSIBLE IMPACT ON CLIMATE AT SOLAR MINIMUM

Some researchers refer to a lower C layer created by galactic cosmic radiation, a force that is independently capable of ionising the atmosphere that is particularly active over the poles. This activity can be monitored as a muon count. Precipitating muons penetrate to the surface and to deep underground, their incidence increasing with the temperature of the polar atmosphere.  It follows that the muon count creates a proxy record of the incidence of stratospheric warmings. Stratospheric warmings and in general the variability of the temperature of the stratosphere over the pole occur in winter where they build on a low base temperature established due to the descent of cold mesospheric air. The stratosphere warms from this low base as the tongue of very cold mesospheric air either withdraws or is displaced by ozone rich warmer air that circulates on the margins of the tongue outside what is referred to as ‘the polar vortex’. The vortex, is a rapidly circulating cone of air energised by the conjunction of cold dense air inside the vortex and ozone rich low density air outside the vortex.

Paradoxically, in the world of climate science the term ‘strong vortex’ relates to the situation where the flow of mesospheric air towards the surface is weak due to low surface pressure in the polar regions. In the Arctic, weak atmospheric pressure ensures that cold air is retained at high latitudes.  This is the positive phase of the ‘Arctic Oscillation’.

In climate science a ‘weak vortex’ refers to the situation where the AO index is negative, polar surface atmospheric pressure is high, the downdraught of mesospheric air is strong and cold air migrates into the mid latitudes. In this situation the jet stream that marks the edge of the polar vortex that in turn relates to the position of a chain of intense polar cyclones, wanders equator-wards taking with it very cold air. Is it any wonder that there is confusion about matters polar?

The notion of strong and weak vortex as described above is at odds with the circulation of the air in the stratosphere. In the stratosphere a faster zonal wind corresponds with deeper penetration of mesospheric air and weaker polar cyclone activity due to the  erosion of ozone. The result is a return of atmospheric mass to the pole from the mid latitudes and an accelerated flow of  of cold polar air to the mid latitudes. So a strong stratospheric flow is associated with coldness, not warmness. At the root of this problem is the notion that the vortex is some sort of impenetrable wall across which little mixing can occur. The reverse is actually the case because between the surface and 50 hPa polar cyclones violently mix very different atmospheric constituents from both sides of the ‘vortex’. The problem is a lack of appreciation of the motive force behind this circulation and a complete misinterpretation of its geometry. Behind that problem is the  notion that the circulation of the atmosphere is just problem in fluid dynamics where the energy to drive the system is assumed to be heating at the equator. In all other respects  it is assumed that the system is closed to external influences. Primitive thought patterns. Well, in fact that is not the case at all. All change begins in the Antarctic stratosphere. It is no accident that the entire southern hemisphere is something of an ‘ozone hole’.

Recent research (abstract below) suggests that ionisation due to cosmic rays in polar latitudes may be a pathway for the generation of ozone down to jet stream altitudes. If this is the case stratospheric warmings will be associated with the generation of ozone and the intensification of polar cyclone activity that lowers surface pressure across the entire polar cap impeding the flow of mesospheric air into the ozonosphere and, via the impact of enhanced ozone in columns of descending air in the mid latitudes, evaporating cloud and warming the surface of the planet. However, the solar wind conditions the ionosphere in such a way as to inhibit the flux of cosmic rays that reach the upper atmosphere. According to this construct the response to cosmic rays will tend to be greater at the low point of the solar cycle as the fluctuations in the solar wind are diminished at this time. There is in fact evidence in the incidence of the El Nino Southern Oscillation phenomenon that the climate system is particularly variable in terms of the distribution of atmospheric mass during solar minimums and it could be the cosmic ray mechanism that is responsible.

Cosmic rays ozone

At this point it is important to note that the cosmic ray effect is dependent upon warming of the stratosphere that is in turn dependent on surface pressure over the polar cap. It is high surface pressure in winter that drives the zonal wind in the upper stratosphere bringing that tongue of cold mesospheric air into the polar stratosphere. A change in surface pressure results in an immediate change in the temperature of the air over the polar cap conditioning the process of ionisation by cosmic rays.

THE ENERGY INVOLVED IN IONIZATION PROCESSES

The wave lengths that are capable of ionising atmospheric gases represent a tiny part of the electromagnetic spectrum emitted by the sun. The EUV itself contributes an insignificant amount to TSI, only a few mW m−2 , as compared to 1360 W m−2 , or a few parts in a million. Inevitably these very short wave lengths are exhausted in the process and largely so above 80km in elevation. But these wave lengths vary tenfold in terms of their power over the solar cycle. It follows that the state of inflation of the ionised region is a direct function of solar activity within the eleven year cycle and over the longer 100 and 200 year intervals between individual solar cycles of very low strength of the sort that the Earth is currently experiencing.

During the satellite age we have seen a marked reduction in the incidence of EUV radiation in line with reduced sunspot activity. In consequence the elevation that is required to reduce atmospheric drag on satellites is reduced and satellite life has been extended well beyond design expectations. This is a direct consequence of a reduction in the output of EUV by the sun. Over this period the concentration of ozone in the stratosphere shows no such variation. It is plain that the ozone content of the stratosphere is independent of the output of short wave radiation from the sun that is responsible for the inflation of the ionosphere.

The diagram below is included to give a sense of scale. We see that the temperature of the upper atmosphere peaks at the 1 hPa level (50 km) with 99.9% of the atmosphere below. This is just below the level where the D region of the ionosphere manifests during daylight hours (60- 75km).

The temperature of the upper air from about 7km in elevation at the poles and 15km at the equator, is conditioned by the presence of ozone that absorbs in the infrared spectrum emitted by the Earth and its atmosphere.  The decline in the temperature of the air in the mesosphere that lies between 45 and 80 kilometres in altitude relates to the declining partial pressure of ozone. The increase in the temperature of the air beyond the mesosphere relates to energy gain in the process of ionisation. But remember that only one percent of the neutral atoms in the upper atmosphere are ionised. That is 1% of the 0.01% that is present above 1 hPa. It does not take a lot of atmosphere to exhaust the incident EUV wave lengths.

T Atmos over equator

OZONE  CREATION IN LOW LATITUDES

Given that the ionic population in the D region exists in the main above 50 km in elevation we can infer that ozone is created in the main in the mesosphere that represents the transient tail end of the ionosphere.  Below the mesopause the population of ions is adequate to support chance encounters between atoms and molecules of oxygen to enable the synthesis of ozone, at least in daylight hours. Here the intensity of destructive radiation is so diminished (particularly at night and at low sun angles) as to allow the large ozone molecule a life. It is then diffused or carried to lower elevations in areas of descent. It follows that the ozone content of the atmosphere below the levels where ionisation is possible is a function of atmospheric dynamics, day length, chemical interactions and the seasonal existence of relatively ‘safe zones’ in high latitudes where the atmospheric path is long and the wave lengths in the UVB and UVC spectrum are so eroded that the atmosphere offers a safe haven for ozone.

The upshot is that the stratosphere in general represents a relatively ‘safe zone’ for ozone, and particularly so in the winter hemisphere. This interpretation is consistent with the observation that the ozone content of the atmosphere varies little across the solar cycle even though EUV varies tenfold. In trying to understand the Earth system one must always remember that the Earth is an orb that rotates about the sun taking 365.25 days and spins on an axis that is inclined 23.5° off a vertical that is at right angle off the plane of its orbit. At the top of the atmosphere irradiance varies by 6% across the year due to the elliptical nature of this orbit and is greatest in January when the Earth as a whole is coolest due to increased cloud cover. This is very different situation to a plane surface that is uniformly lit from vertically above.

Between 1 hPa and the upper limits of the mesosphere at about 80 km in elevation, the temperature of the air and its ozone content descends to a minimum. This minimum is called the mesopause. Beyond the mesopause, atmospheric temperature increases in line with the excitation of the atmospheric constituents by extreme ultraviolet radiation.

It should be borne in mind that the temperature of the atmosphere that contains ozone (between the mesopause and the surface of the planet) is in part a function of the energy absorbed by ozone in the infra-red and secondly due to the energy released by the disassociation of the ozone molecule as it is ionised. However there is in practice a more  influential factor at work. The temperature of the air in the stratosphere is mostly a function of the origin of the air as it moves vertically and laterally within the stratosphere. On a spherical surface that is not uniformly lit the temperature of the air very much depends upon its origin.

The notion that the stratosphere is a relatively safe place for ozone is supported by the following observations:

India

It appears that 40km in elevation over India is the point at which the atmospheric profile changes. Above 40km the night time partial pressure of ozone is greater than the day time  as one would expect if the pressure of ionization during daylight hours actively depleted ozone faster than it forms up. Below 40km in elevation, daytime values are higher than night time values indicating a relatively safe environment so far as ionisation is concerned.

CONVECTION IN THE STRATOSPHERE

In the diagram below we see that at the 1 hPa pressure level there is a cyclical accumulation and dissipation of ozone over centres where surface pressure tends to be low in winter (the oceans). This convective phenomenon occurs in the lee of   the continents and in particular, in 2016, over New Zealand in winter.  This particular cycle comes and goes in the space of 9-11 days and is convective in origin.  It is erroneously attributed to ‘Planetary waves’. In fact, the annular ring of high ozone values that surrounds the pole, strengthening in winter represents air of low density that is ascending to the top of the atmosphere, or at least to a level where 99.9% of the atmospheric mass is beneath.

Planetary wave 1

In the northern hemisphere the Pacific Ocean tends to be the zone where low surface pressure promotes the accumulation and ascent of ozone rich air. The distribution of ozone at 1 hPa is seen below, across a similar cycle of convection in the northern hemisphere.

NH Ozone at 1hPa

CONCLUSION

It is suggested that the existence and persistence of ozone in the stratosphere is in the main a response to the reduced pressure of ionisation below an elevation of about 40 kilometres over the equator. In the winter hemisphere ionisation via short wave radiation from the sun is not a factor of importance allowing ozone partial pressure to build. The influence of cosmic rays may be to build ozone levels at high latitudes and particularly so during stratospheric warmings. The distribution of ozone responds also to convective processes. The temperature of the air in the stratosphere will depend in the main on its response to radiation from the Earth itself rather than the process of ionisation. Air  from the mesosphere is cooler regardless of its ozone content.  It is well observed that air moving from low to high latitudes at the 100 hPa pressure level is cooler due to its lower ozone content. The stratosphere is warmer at the poles than at the equator due to enhanced ozone content even though the amount of infrared radiation that is available to energise ozone is much reduced. This tells us that the amount of radiation available to  energise ozone is never limiting, even at night. The air at the tropical tropopause, markedly deficient in ozone, is at a similar temperature to the air in the mesosphere, about minus 85°C.

It is the exhaustion of ionising radiation above the mesopause that allows ozone partial pressure to build at lower elevations. The partial pressure of ozone can only build when the ozone molecule is free from disassociation via wave lengths that are longer than the EUV wave lengths responsible for the ionosphere. In low latitudes this may be the case at about forty kilometres in elevation and it will be higher in mid and high latitudes. The atmospheric path is long enough to filter out the wave lengths that can disassociate ozone when the sun is low in the sky. During the polar night the atmospheric path is …….. somewhere else.

Due to the minute partial pressure of ozone that rarely exceeds 30 ppm, and only in very protective environments near the poles,  the surface of the planet is never completely free of radiation at the wave lengths that can disassociate ozone. It is the paucity of ozone in the southern hemisphere that is responsible for the pressure of damaging short wave radiation at the surface. The Andes Mountains experience particularly large amounts of energetic ultraviolet radiation due to their elevation.

The dilution of ozone via the descent of mesospheric air pre-conditions the entire southern hemisphere to an ozone deficit and is responsible for the weathered, leathery, ‘Australian skin’ and by contrast the extreme levels of melatonin in the skin of Australia’s very well adapted native peoples.

Part 2 describes the forces responsible for the erosion of ozone near the surface of the planet, the highly variable height of the tropopause and its lack of clear definition when observed on short time scales. It is seen that ozone partial pressure is greatest where ozone is free from erosive influences emanating from the surface of the planet.

 

24 SPRINGTIME IN THE STRATOSPHERE

This chapter explores the characteristics of the atmosphere in spring.  It relates the distribution of ozone and NOx  to ozonesonde data  and the temperature and movement of the air. My data sources are  here for maps showing ozone and NOx profiles and here for ozonesonde data and here for maps showing temperature, pressure and wind.

The objective is to investigate the factors responsible for the composition, temperature, density and movement of the air. The discussion pertains to the origin of  the planetary winds, cloud cover and surface temperature, in short climate change.

Ozone 50hPa 6 hr

Above: Ozone at 50 hPa 11th to 13th September at six hourly intervals.

The diagrams above show ozone at the 50 hPa pressure level (20km) in the southern hemisphere at 6 hourly intervals. Observe that the rotation of the atmosphere  above the Antarctic continent over 54 hours amounts to about half a circle. A full rotation at this rate would take 4.5 days.

It takes about 10 days for a mid latitude anticyclone to pass a point on the Earth’s surface at the latitude of southern Australia. It takes about five days for a polar cyclone to pass from one side of the continent to the other.

As the Earth spins on its axis the morning sun appears on the eastern horizon. The atmosphere moves from the west to the east rotating faster than the Earth itself. The rate of rotation of the atmosphere increases with latitude. In winter, in high latitudes,  the rate of rotation also increases with height. This is counter-intuitive. It is commonly asserted that the heat that is absorbed in the tropics is providing the energy to drive the circulation of the air. In general, wherever energy is applied to a system, that is where the most vigorous response is to be found. The  movement of the atmosphere, more exaggerated at the poles than at the equator, suggests that the force driving the circulation is being applied at or near the poles. In fact, the greatest depression of surface pressure and the greatest peak in atmospheric pressure on a global scale is to be found in the region of the Antarctic continent in winter. The strongest winds at the surface of the planet merge at 60-70° south latitude. The variation in the temperature of the Earth at every particular latitude is greatest in the middle of winter when the flux in the ozone content of the air is most extreme.

The distribution of ozone at 50 hPa might be described as annular or ring like in shape surrounding the pole. Tracers of ozone fan out towards low latitudes from nodes of relatively high ozone partial pressure. Such a node is located between Antarctica and Australia/New Zealand as seen in the diagram above.

The tracer pattern of ozone distribution is similar to what we observe when a broad bladed paddle is applied to a can of paint. As we stir, a vortex is created in the middle where the centre of the circulation is depressed in relation to the perimeter. Intuitively, the Antarctic circulation is driven  in a similar fashion. There is obviously no broad bladed paddle at work. The differences in air density on either side of latitude 60-70° south that give rise to polar cyclones increase as the ozone content of the air is enhanced in winter. The seasonal descent of very cold mesospheric air over the pole chills the interior as the ozone content of the air increases outside the margins of that very cold mesospheric air. These developments together create a situation of atmospheric stress related to extreme differences in air density that is entirely local in origin.  We know that the ‘zonal wind’ (east west) varies in conformity with geomagnetic activity. So it is likely that the driving force of this system is in part compositional (density related) and in part electromagnetic in origin.

This description of the forces responsible for the winds in high latitudes is very different to that given in the ‘climate science’ of this day. In fact climate science can not enlighten us as to the origins of the zone of extremely low surface pressure on the margins of Antarctica or the indeed the historical decline in surface pressure in high latitudes let alone the reversal in that process of decline that is currently under-way.None of these features rate a mention. Climate science is dominated by radiative theory and the notion that back radiation from ‘radiation absorbers’ like CO2 and water vapour drives surface temperature. Geographers are out of fashion. Mathematicians and Physicists who know little of the geography of climate hold sway.

Ozone from 26Aug at 50hpa

Above: Ozone at 50 hPa at daily intervals.

The diagrams above show the state of the atmosphere at daily intervals. Every particular feature changes in shape over the 24 hour interval between one diagram and the next. There are locations centred on latitude 30° south where ozone partial pressure is low and atmospheric pressure tends to be persistently high. One such lies in the Indian Ocean to the west of Australia a second in the Pacific to the west of the South American continent. A third is located in the South Atlantic to the west of Africa

We can relate the distribution of ozone to that of the  chemical family referred to as NOx as seen below. This family catalytically destroys ozone at any temperature. Like any reaction the higher the temperature the faster it will proceed. A catalyst is a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

NOx from 26Aug at 50hpa

Above: NOx at 50 hPa

The NOx that manifests in this ring like fashion originates in the troposphere and enters the Antarctic circulation from the north in a lateral fsashion. See the charts of NOx at 100 hPa below that indicates little or no NOx in high latitudes at this level. There is NOx in low latitudes but none near the poles.

The core of low NOx values at 50 hPa seen above contracts in diameter like the aperture of a camera over the ten days prior to August 30th. As it does so, day by day ozone is eroded.

NOX at 100 hPa from 26 Aug

Above: Nox at 100 hPa.

The distribution of NOx at 50 hPa on the 30th August can be compared to the distribution of ozone and the position of both in relation to the the zone of very low surface pressure that surrounds Antarctica.

NOx 30th Aug

I have traced the main features of the distribution of NOx in the diagram above and applied the resulting figure as an overlay on the figure below.  NOx manifests in greatest concentration inside the annular ring of ozone rich air. That is as expected, given the ability of NOx to catalytically destroy ozone. The distribution of ozone is therefore a product of the movement of the air and is modulated by the presence or absence of NOx

Ozone at 50hPa

In the same fashion, the figure indicating the distribution of NOx is overlaid on the map of surface pressure and wind at 250 hPa that is below. It is apparent that NOx is drawn into the ascending circulation created by polar cyclones. Air enters the circulation horizontally above 100 hPa and this air shows high concentrations of NOx and very little ozone. In the process it progressively floods the entire area over the Antarctic continent at the 50 hPa level. NOx closes in on the pole like the aperture of a camera. Bear in mind that the distance between the surface where pressure is measured and the 50 hPa level is 20 kilometres. At the surface the distribution of surface pressure is somewhat irregular. At altitude the circulation becomes increasingly smooth and ring like. This is the character of what is called the polar vortex. The vortex does not respect our notions of what is troposphere and stratosphere. It is not particular at all.

SLP August 30th

An ozonesonde consists of a small piston pump that bubbles ambient air into a cell containing 3 milliliters of 1% potassium iodide solution. The reaction of ozone and iodide produces a small electrical current in the cell, which is proportional to the amount of ozone. The ozonesonde is also interfaced with a radiosonde, which measures air temperature, pressure, relative humidity and transmits all of the data back to a ground receiving station. Total column ozone is calculated by integrating the ozone partial pressure profile up to the balloon burst altitude and adding a residual amount, based on climatological ozone tables, to account for ozone above the balloon burst altitude.

The  ozonesonde data below was gathered at the US Amundsen Scott base at the south pole. The distribution of ozone in the diagrams below left relates to the 50 hPa level. Both diagrams relate to the 20th August 2015. Together they give us  information about a vertical and a horizontal slice of the atmosphere.26 Aug

AUGUST: On 26th August the partial pressure of ozone at 50 hPa at the pole is unaffected by the gradual ingress of NOx that is already in evidence on the 7th June at left because it begins only at the outer margins of the continent. The pole is as yet unaffected.

Nox to 26th Aug

Above: Nox at 50 hPa. NOx occupies more and more of the space over the polar cap from June through to August. The seeds of the ozone hole are planted early. But on the 26th August the polar region is still NOx free.

12 Sep

KEY to diagram on the right:    Fine black line: ozone on 26th August (see above). Green line: Generic indicator of pre-ozone hole extent, origin unknown. Blue line: Ozone partial pressure as measured 12 September. Red line: Temperature as measured on 12th September. Fine purple line: Temperature as measured on 26th August.

SEPTEMBER: By 12th September NOx is certainly beginning to erode the partial pressure of ozone over the pole but the extent of erosion depends not on the local temperature (-85°C at 70hPa) or the presence of sunlight (none), or the presence of noctilucent clouds, even though all may be favourable to chlorine chemistry but simply according to the patterns of movement in the air that progressively floods the polar cap with NOx. There are different air masses over the pole, different in their trace gas composition according to the presence or absence of NOx and this is the determining influence so far as total column ozone is concerned.

Notice that the seasonal minimum in total column ozone at the pole manifests between 50 and 100 hPa. There is a marked contrast between this deficit and the high ozone content of the air on the outside of the chain of polar cyclones. The formation of the hole exaggerates the contrast.

We see below that between 12th September and 15th October NOx floods the polar cap between 100 hPa and 50 hPa and the ozone simply disappears. The outer perimeter of the chain of polar cyclones marks an abrupt transition between high ozone values and virtually none at all. This is the month when surface pressure falls to its annual minimum at 60-70° south. This is not a coincidence. Surface pressure is a function of the vorticity of polar cyclones in turn a function of differences in air density between the northern and southern perimeter of this chain of polar cyclones. With zero ozone on one side of the vortex and a variable amount of ozone on the other side the stage is set for variability that arises entirely according to change in the partial pressure of ozone.

The polar circulation is now changing quickly as the stratosphere undergoes its final warming. See below. There is a strong  increase in the temperature of the air above 50 hPa between mid September and mid October.

Notice the warmer air above 25km. Over the polar cap there is insufficient ozone in the air and insufficient air density to allow ozone to make a strong contribution to the temperature of the air above about 25 km in elevation. The increase in the temperature of the air that we observe in this month reflects a reduced influx of very cold mesospheric air and is due entirely  to atmospheric dynamics. Warmer air from lower latitudes begins to occupy the polar cap as the polar vortex contracts in diameter and its degree of penetration. The two are actively mixed in the rapidly rotating cross currents of cold descending and warm ascending air across the polar vortex. As we will see the very cold air from the mesosphere enters laterally rather than vertically.12th Oct

OCTOBER: A reminder: Surface pressure at 60° to 70° south falls to its annual minimum in October when the contrast between the ozone content of the ‘hole’ and its margins is greatest. There should be no doubt as to the motive forces behind this circulation and it has nothing to do with heating in the tropics or any of the circuitous arguments of those who theorise in the world of fluid dynamics who assume that  all atmospheric motions can ultimately be put down to heating at the equator and the movements of air masses on a spinning circular orb.  A pennyworth of observation is more valuable than a pounds worth of theory.

Below we see that 15th October marks the climax in terms of the presence of NOx over the continent. Unfortunately there is no data for NOx after the 25th November and we have to rely on the distribution of ozone as the sole indicator of the air flow. This is no real hardship because we know that one is always the mirror image of the other. Notice however that NOx declines in concentration after 15th October.

NOx to 25 Oct

Above: NOx at 50 hPa.

Between the 15th October and the 18th November the air over the pole warms strongly as we see below and the vortex of cold air that descended over the pole is no more.  The air in the core of the circulation has a temperature of -53°C on 10th October, and is surrounded by warmer air that is at -15.7°C at its warmest with much colder air on the perimeter and the core of the circulation ends up at -17°C a month later. The air outside the vortex remains at the same temperature.

10hPa 15.10.2015

10hPa 18.11.2015

18 Nov

NOVEMBER: The increase in the temperature of the air at 10 hPa (30 km) is reflected in the ozonesonde data for the 18th November. Total column ozone has increased but there is still a marked deficit between 100 hPa and 50 hPa that would be described as an ‘ozone hole’. This deficit can not be accounted for in terms of chlorine chemistry because the air at 50 hPa is now too warm for this to occur. The distribution of ozone simply reflects circulatory phenomena. The diagram at left shows that the greatest deficit in ozone is not above the pole but in the core of the now wandering circulation of swiftly warming air that is no longer locked into its winter position over the pole. 16 Dec

DECEMBER: It is plain from the diagram at left that the presence or absence of ozone is a product of the movement of the air masses. The ozonesonde data shows that at the 100 hPa level ozone is still heavily depleted by comparison with the  August pattern indicating that disparate winds in the horizontal domain account for the presence or absence of ozone in the air. The blue ozone curve indicates fluctuating levels of ozone between 10 and 15 km in elevation and certainly a deficit by comparison with the month of August.

The red temperature line shows that a very definite tropopause is established at 9km (250hPa) in elevation associated with an increase in the ozone content of the air to only 4ppm  that is sufficient at this pressure level to cause an increase in the temperature of the air. This indicates a reduced exchange of air in a north south direction and the establishment of relatively calm conditions. The surface pressure gradient between the continent and southern ocean is now  falling away from its October extreme. Atmospheric pressure at 60-70° south latitude is now rising steeply as is seen below.SLP 60-70°S

20 Jan

JANUARY: Features of the atmosphere include a very definite tropopause at about 9km in elevation. The top of the atmospheric column is cooling from its December peak as the upper circulation receives a marginally increased contribution of cold air from the mesosphere. We see at left that the bulk of the  air at 50 hPa over the Antarctic continent is little differentiated in terms of its ozone content. Between the equator and 30° south the ozone content of the air at 50 hPa  is much affected by the elevation of NOx and water from the troposphere that occurs in summer. We see that  the interaction of the troposphere and the stratosphere is important in modulating the ozone content of the air above about 8 km in elevation at the poles and double that elevation at the equator. It is not the so called Brewer Dobson circulation that is responsible for the increase in ozone partial pressure in higher latitudes but the freedom from erosion by NOx from the troposphere and the low ionisation pressure in winter.

THE MARKED VARIETY IN OZONESONDE PROFILES ELSEWHERE ON THE PLANET

1 Greenland

Sonde greenland

Summit Station at latitude 72° north is located on the highest part of the Greenland ice sheet. Land in high latitudes promotes high surface pressure in winter and low pressure in summer. In winter low pressure zones tend to locate over the ocean. The absence of a stabilising land mass in what is the Arctic Ocean means that the pattern of polar cyclone activity is much less annular than it is about the Antarctic pole.  Apart from a persisting low pressure zone that establishes over the north Pacific most locations at 50-70° north experience low surface pressure on an intermittent basis.

Greenland

Above: Ozone at 50 hPa between the 6th and the 14th March 2016.

There is a well established relationship between the ozone content of the air and surface pressure that goes back to the observations of Gordon Dobson and others prior to the 1920s. On the 6th March at Summit station Greenland, cold, ozone deficient air manifests in a lateral flow between 10 and 25 km in altitude and surface pressure is accordingly high. It is the elevated ozone content of the air on the 12th March that is responsible for low surface pressure.

Referring again to the sonde data, note the variation in the height of the tropopause between the 6th and the 12th March, the much cooler denser stratosphere  at and about 50 hPa on the 6th and the strong response to the presence of ozone at 7 km in elevation  on the 12th March and again at 20km of elevation. This illustrates the fact that the temperature of the stratosphere is a response to two influences. The first is the presence of ozone and the second, regardless of ozone content, the very different temperature of the air  according to its origin.

Let us note that the high latitude stratosphere in both Antarctica and the Arctic is far from a quiescent medium. There are strong lateral flows beginning from as low as 7km of elevation in some locations but higher in others. It is the ozone content of the air above 7km in elevation that determines surface pressure and not the other way round.

Secondly, let us note that from one year to the next there is a large variation in the concentration of ozone in the atmosphere as is evident by comparing the diagrams above and below.

Greenland 6-14

Above: Ozone at 50 hPa between the 6th and the 14th March 2015

Thirdly, let us note that the ozone structure at 50 hPa is very different in comparable spring months between the Arctic and the Antarctic. The Arctic is relatively supercharged with ozone and the vortex is both highly variable in terms of the its shape and also its location. The Antarctic works at more moderate levels of ozone but it maintains a stable vortex with an extreme gradient in ozone partial pressure and hence surface atmospheric pressure between the inside and outside of the vortex. The vortex plays a much stronger role in modulating the ozone content of the southern hemisphere than it does in the northern hemisphere and drives down the ozone content of the entire southern hemisphere. In fact it can be demonstrated that the southern vortex modulates the ozone content of the global atmosphere on inter-centennial time scales and in doing so modulates the distribution of atmospheric mass and hence the planetary winds, cloud cover and surface temperature. Ozone therefore modulates the distribution of energy and the temperature gradient between the equator and the poles.

2. Suva, Fiji

Suva

Suva is the capital city of Fiji located at 18° south latitude on the margin of a very large area of high surface pressure that spreads eastward to South America. We see that total column ozone values at this latitude are comparable to the Antarctic in summer and there is a marked deficit in ozone between about 7 and 17 km in elevation, not greatly different to the circumstance in the Antarctic in October.There is a similar ‘hole’ to that in Antarctica but the Suva hole is invariable. If air of this nature travels to Antarctica (and it does) it will be seen to be NOx rich and ozone poor.

An interesting variation in the ozone content of the air occurs in the troposphere. It is clearly related to the shape of the temperature profile. As ozone dissipates from these stratified layers into the air above and below it will affect cloud cover. In October and November average rainfall in Suva is in excess of 200 mm per month. Surface temperature varies between 23 and 26°C across the year peaking in February. As the air warms it has the capacity to absorb more moisture. In a warming regime clouds will disappear resulting in a warmer surface on land or increased absorption of energy by the sea. We call this weather on daily time scales, seasonal variation on inter-annual time scales and climate change on longer time scales and its all entirely natural in origin.

The tropopause is well marked and much elevated at all times of the year. The temperature profile above about 18 km in elevation indicates a strong response to the presence of ozone that is only possible in relatively still air. The temperature of the air increases at elevations above 27km (20hPa) despite the falling away of ozone partial pressure indicating a strong contribution from ionising short wave radiation from the sun in the very exposed latitudes close to the equator. Above 20 hPa there is only 2% of the atmosphere to intercept short wave energy from the sun.

Pago Pago

3. Pago Pago

Pago Pago is situated at 14° south latitude in the south west Pacific. The ozone regime is very similar to that at Suva. Notice the temperature response to the presence of 5-6ppm ozone quite close to the surface on 9th December. As Gordon Dobson observed, it is not uncommon to find parcels of very dry air from the stratosphere in places where they are least expected.

Huntsville 2

Huntsville 1

4. Huntsville Alabama.

Huntsville Alabama experiences  a great deal of diversity in the nature of the air masses, the ozone content of the air, the ozone profile, the speed and ozone content of the wind at different elevations and therefore the height of the tropopause. Note that on the 12th March there is a minor temperature response despite the presence of 10 ppm ozone at 13-15 km of elevation. This suggests that an influx of relatively ozone rich air from higher cooler latitudes  is responsible for the low temperature, apparently a relatively frequent phenomenon. On the 2nd March at 10 km in elevation we have 10 ppm ozone and no temperature response at all.

5 Trinidad Head, Humbolt County, Northern California 40° north latitude

TRinidad Head 1

TRinidad Head 2

Trinidad Head is much subject to a rising and falling tropopause as the ozone content of the air changes with the origin of the travelling air masses. The stated total column ozone value for the 20th January of 99999 Dobson Units  illustrates the magnitude of the error that is possible when using ‘climatological tables’ to infer total column ozone when the helium balloon carrying the ozonesonde bursts at a low altitude.

CONCLUSIONS

  1. Ozone maps surface pressure. The primary driver of change in surface pressure globally is the variation in the ozone content of the air between the surface and 50 hPa.
  2. The variability in the ozone content of the air manifests in both the troposphere and the stratosphere in the main between between about 7 km in elevation through to 20 km in elevation (350 hPa to 50 hPa).
  3. The vigorous lateral circulation of the air at and above  250 hPa is a prime driver of the ozone content of the air at particular locations on a day to day basis. The lateral movement of the air in the upper troposphere-lower stratosphere is associated with changes in surface pressure and weather on day to day  time scales.
  4. Ozone at 4 ppm in the lower troposphere can drive an increase in the temperature of the air. This will affect cloud cover and in a regime of changing ozone partial pressure that will drive change in climate. This appears to be the mechanism behind the observed relationship between geopotential height and the temperature at the surface of the planet.
  5. Change in the ozone content of the air is responsible for change in the weather on day to day intervals and the climate on longer time scales. As Gordon Dobson discovered in the 1920’s Total Column ozone maps surface atmospheric pressure. Unfortunately ‘climate science’ went on a mathematical picnic in the 1960’s and has yet to return to the task of coming to grips with the nature of weather and climate, as it is observed and as it evolves. Dobson was first and foremost an observer and secondly an enormously resourceful inventor of instruments to gather the data necessary to describe the nature of the atmosphere and its modes of change. He left little in the way of written work but his ‘Exploring the Atmosphere’ of 1963 is seminal.
  6. The atmosphere has a history that is indissolubly linked to the evolution of surface atmospheric pressure at 60-70° south latitude.

 

LINKS TO EARLIER CHAPTERS

Reality

  How the Earth warms and cools in the short term….200 years or so…the De Vries cycle

Links to chapters 1-23

https://reality348.wordpress.com/2015/12/20/how-do-we-know-things/

https://reality348.wordpress.com/2015/12/24/2-assessing-climate-change-in-your-own-habitat/

https://reality348.wordpress.com/2015/12/29/3-how-the-earth-warms-and-cools-naturally/

https://reality348.wordpress.com/2016/01/09/4-the-geography-of-the-stratosphere-mk2/

https://reality348.wordpress.com/2016/01/11/5-the-enigma-of-thecold-corepolar-cyclone/

https://reality348.wordpress.com/2016/01/13/6-the-poverty-of-climatology/

https://reality348.wordpress.com/2016/01/13/7-surface-temperature-evolves-differently-according-to-latitude/

https://reality348.wordpress.com/2016/01/15/8-volatility-in-temperature/

https://reality348.wordpress.com/2016/01/24/9-mankind-in-a-cloud-of-confusion/

https://reality348.wordpress.com/2016/03/10/15-science-versus-propaganda/

https://reality348.wordpress.com/2016/03/18/16-on-being-relevant-and-logical/

https://reality348.wordpress.com/2016/03/26/17-why-is-the-stratosphere-warm/

https://reality348.wordpress.com/2016/04/03/18-the-ozone-pulse-surface-pressure-and-wind/

https://reality348.wordpress.com/2016/04/08/19-shifts-in-atmospheric-mass-in-response-to-polar-cyclone-activity/

https://reality348.wordpress.com/2016/04/17/20-the-distribution-of-atmospheric-mass-changes-in-a-systematic-fashion-over-time/

https://reality348.wordpress.com/2016/04/24/21-the-weather-sphere-powering-the-winds/

https://reality348.wordpress.com/2016/05/04/22-antarctica-the-circulation-of-the-air-in-august/

https://reality348.wordpress.com/2016/05/14/23-the-dearly-beloved-antarctic-ozone-hole-a-function-of-atmospheric-dynamics/

 

 

 

23 THE DEARLY BELOVED ANTARCTIC OZONE HOLE: A FUNCTION OF ATMOSPHERIC DYNAMICS

SLP 60-70°S

Source of data here.

BACKGROUND

Ozone is a greenhouse gas that absorbs radiant energy from the Earth at 9-10 um heating the air. It accumulates in the winter hemisphere but not over the polar cap. The descent of very cold, dense, ozone deficient air from the mesosphere is promoted by increased surface pressure over the polar cap. The resulting difference in air density either side of about 60-70° of latitude is responsible for  the formation of polar cyclones where differences in air density between 300 hPa and 50 hPa create upper level troughs that propagate to the surface.

The term NOx refers to the mono nitrogen compounds of nitrogen, NO and NO2. NOx is abundant in the troposphere and less so in the mesosphere. NOx catalytically destroys ozone.

The depression in surface pressure on the margins of Antarctica in October as documented above (rather than in December or January when the atmosphere is warmest) is related to  the establishment of the aforementioned difference in atmospheric density across the polar vortex and the consequent generation of intense polar cyclones.

The more severe is polar cyclone activity, the more surface pressure falls away over all latitude bands south of 50° south latitude. The diagram above displays the evolving decline in surface pressure over the last seven decades.

The diagram above and another immediately below represent unacknowledged  ‘smoking guns’ of natural rather than man made climate change. If we acknowledge the natural influence  there is no need for other arguments to explain the change in climate that has occurred.

Strong winds (jet streams) are found at the 200 hPa level, much stronger than at the surface. The relatively abrupt increase in the temperature of the air at 200 hPa in the southern hemisphere that occurred in the late 1970’s changed the parameters of the climate system. Some have described the accompanying  1°C increase in tropical sea surface temperature as a manifestation of the  Great Climate Shift of 1976-78.

25-35°S

This chapter explores the origin of the Antarctic ‘ozone hole’ finding that it is entirely natural in origin.

THE HOW AND WHY

On the margins of Antarctica we have a very special place where extremely low surface pressure manifests all year round. Even in July when surface pressure peaks strongly over the Antarctic continent there is anomalously low surface pressure on the margins of Antarctica. This is the part of the globe where surface pressure is regularly less than anywhere else, including the massive Eurasian continent in the height of summer. The force that is responsible for this pressure deficit is unknown to climate science. It is the lack of knowledge of the forces involved that has enabled the ‘ozone hole’scare to to be perpetuated. The horse of ‘ozone deficit’ has been harnessed to the global warming cart in an effort to implicate man when both phenomena are actually the result of natural processes that have their origin in the distribution of land and sea.

JulySLP

Climate science has no explanation for the existence of the massive deficit in atmospheric mass on the margins of Antarctica (fewer molecules in the atmospheric column) let alone an explanation for the decline in surface pressure over the last seventy years. The gradual  loss of atmospheric mass points to an increasing differential in air density within and without the polar vortex driven by ozone heating of the atmosphere outside the vortex and ozone depletion within it. We can infer from the surface pressure data that the ozone hole has intensified over the decades. We can also see that the  existence of the hole pre-dated the manufacture and widespread use of those compounds that have been restricted under the Montreal protocol designed to ‘save the ozone layer’. This protocol was the first major triumph of the environmental movement that laid the groundwork for the United Nations to explore the supposed warming effect of carbon dioxide in the atmosphere, a warming effect that has yet to be demonstrated to the satisfaction of those whose field of expertise is atmospheric physics. So effective has the agitation of the environmental movement been that advanced western nations have, regardless of consequences, fallen in love with the idea of utilizing the energy from the sun and the wind while capturing carbon dioxide from the atmosphere and burying it in reservoirs underground. Don Quixote rides again but he rides through a greener countryside due to the response of plants to the easing of a carbon dioxide deficit. To a photosynthesising plant 400 ppm of carbon dioxide in the air represents  near starvation. As the CO2 content of the air has increased all CO2  using organisms have responded magnificently.

Back in 1948-56 the ozone hole was severe in November. Today it is severe in October. That is what the first graph above tells us. It tells us also that surface pressure in high latitudes has  declined  over time.  We need to understand the sources of the extra ozone that has given rise to that increasing deficit in atmospheric mass, increased the vorticity of polar cyclones on the margins of Antarctica, enhanced the velocity of the westerly winds that drive southwards from the mid latitudes and produced the marked rise in the temperature of the air at 200 hPa between 1976-8 in the mid altitudes of the southern hemisphere.

THE EVOLUTION OF THE DISTRIBUTION OF OZONE AT THE 50 hPa PRESSURE LEVEL IN 2015

oz 5

Oz 6

The last chapter explored the structure of the atmosphere on 20th August 2015 by way of introduction to this discussion.

As can be see via inspection of the diagrams immediately above, the slowly developing ‘hole’ of ozone deficient air at 50 hPa  first becomes evident after 30th July. The slight green tracer increased in latitudinal thickness over the month of August at about latitude 60° south. By 9th September  it manifests as a dark blue zone of fully depleted ozone on the margins of the Antarctic continent. The zone  of depletion grows to occupy the entire Antarctic continent from 19th September through to the 8th November.

50hPa T Antarctica

Inspecting the diagram above we see that temperature of the air at 50 hPa  on September 19th is in excess of the of the -77°C necessary for the functioning of the chlorine chemistry that works in conjunction with polar stratospheric cloud to destroy ozone. At this time of the year the temperature at 50 hPa is not only too warm for chlorine chemistry but it is warming fast and not looking back. This occurs as the very cold ozone deficient air inside the vortex is withdrawing back into the mesosphere from whence it came. It is being replaced by air from the lower stratosphere, below 50 hPa.

We notice that the hole first manifests not at the core over the pole where temperature is coolest but on the margins of the polar circulation where the temperature is warmest and grows by extension  from that outer margin. This too, is inconsistent with chlorine chemistry.

As we see below surface atmospheric pressure falls steeply between 75°and 90° south latitude as the ozone hole is established in the period from 19th September through to the 8th of November.

Surface pressure Antarctica

The steep reduction in Antarctic surface pressure that begins in mid September is a result of two influences. Firstly there is cooling in the northern hemisphere allowing a shift of atmospheric mass back across the equator. Secondly, there is the fall in surface pressure associated with the development of the hole. The hole exaggerates the difference in the temperature and the density of the air between the polar cap over Antarctica on the one hand  and the air over the Southern Ocean that is ozone rich on the other. The density gradient that drives polar cyclone generation is enhanced as the ozone hole builds.

In order to track the distribution of ozone on 20th August as the ozone hole begins to develop, I refer the reader to the detailed diagrams immediately below. The view is polar stereographic with Antarctica at the centre and South America at 10 O’Clock. I suggest the reader begins with a close inspection of the data at top left and moves about in a clockwise fashion.

Source of this data here

NOx distribution

In the core of the circulation the air is relatively deficient in ozone (top left) and relatively dry (top right). The inner core of the circulation is also free of NOx (bottom right). The core is occupied by dry mesospheric air that descends in the winter season as surface pressure increases to a planetary maximum over the Antarctic land mass.

Below is the situation in terms of pressure relations. The depth of the pressure deficit at 60-70° south is a product of polar cyclone activity. This pressure deficit is the direct product of local differences in air density.

July pressure

Look again at the set of 4 diagrams above. At 50 hPa (top left) peak ozone manifests in a narrow, unbroken ring like band with a diminished diameter by comparison with total column ozone (bottom left). Look carefully to see the distribution of NOx derived from the diagram bottom right  that is co-extensive with the zone of low temperature at 70 hPa (bottom left).

Observe the erosion of the ozone content of the air inside the margins of the  annular ring of highest ozone concentration in the diagram top left.  This erosion is a product of the joint activity of water, in which ozone is soluble and NOx that chemically destroys ozone as it is drawn into the heart of the polar cyclones that surround the continent(see below).

Overlay on surface pressure

Look carefully at the diagram bottom right in the set of 4 diagrams above. At 50 hPa NOx is plainly drawn into the upwardly ascending circulation inside the zone of peak ozone concentration at 50 hPa.  The distribution of NOx is almost co-extensive with the zone of very low surface pressure seen immediately above and it lies across and inside the cordon of air that is rich in ozone. This mixture of air from the mesosphere and the weather-sphere ascends in the core of polar cyclones and presents as a near laminar flow at 70 hPa. It will continue to ascend to the uppermost parts of the atmospheric column at 10 hPa (30 km, 99% of atmospheric mass below) and beyond. By the end of October the air at 1 hPa will attain a temperature of 0°C being 5°C warmer than the air over the equator and 25°C warmer than the air over the Arctic at this same level. This occurs at a time when the sun has just appeared over the horizon. The warmth of the air is due primarily to the absorption of long wave radiation from the Earth by ozone that is transported aloft by this circulation.

We can now transfer our attention to the diagrams below. In the initial stages of the development of the ozone hole the zone of high surface pressure across the continent maintains a slightly enhanced ozone concentration (yellow tones) by comparison with the perimeter of the  continent where green tones prevail. But, look at what happens as surface pressure falls and the temperature of the air across the polar cap rapidly increases:

OZONE HOLE PROGRESS

Compare the  distribution of NOx (below)  to the distribution of ozone within the ‘hole’ shown above. There is plainly a very close identity in terms of the spatial arrangement. The cause of this ‘ozone hole’ phenomenon is plain to see.

the ozone hole

NOx migrates into the core of the circulation depleting its ozone content from the margins of Antarctica where it is entrained with ozone. This NOx charged air gradually occupies the entire space over the continent that formerly exhibited high surface pressure, extreme cold and a very dry atmosphere with some ozone. This is the process that erodes ozone to produce the ‘ozone hole’. It proceeds by gradual replacement of one sort of air with another, the latter including a compound, namely NOx, that soaks up ozone. It closes from the perimeter like the iris in the aperture of a camera.

Plainly NOx rich air is progressively entrained into the core of the circulation over the continent as mesospheric air stalls in its descent. NOx rich air from below 50 hPa accumulates in the lower stratosphere as the formerly descending circulation withdraws. The hole is a function of atmospheric dynamics that are initiated in August on the margin of the ‘night zone’. It is unrelated to the incidence of solar radiation or the return of sunlight and any possible involvement with stratospheric clouds and chlorine chemistry. NOx  destroys ozone in the Antarctic atmosphere as efficiently as it destroys ozone in near equatorial latitudes.

There is no correlation between the amount of ozone within the core and that without. In other words ozone levels in the wider stratosphere remain high as ozone levels plummet within the localized ‘hole’.  This is inconsistent with the ozone hole narrative beloved by those who  maintain that the activities of man are endangering the global stratosphere.

The diagrams below trace the gradual disappearance of NOx and its replacement with relatively ozone enriched air. This is made possible by the ingress of air from the perimeter (contraction of the vortex structure) and the chemical exhaustion of NOx. Rather than being confined to the perimeter of the continent as it is in winter, ozone rich air floods over the whole, occupying the entire continent by December 31st when temperature at 50 hPa reaches its annual maximum. (see the fifth diagram in this chapter).

Nox post Nov 1

Ozone post Nov 1

As NOx inside the hole disappears, so too does the ozone hole.  The resultant warming of the lower stratosphere at 50 hPa marks the transition to the ‘final warming’ over the polar cap and the change from descent in the core to gentle ascent with an accompanying 180° swing in the direction of the wind at 10 hPa. The evolution of the winds and the temperature of the air is shown below.

EVOLUTION OF THE WINDS AT 10 hPa

The diagram below shows the temperature of the air at 10 hPa and the direction of the wind on 13th August as the hole begins to manifest.  Data from here.

Circ 13 Aug 10hPa

On 13th August (above) there is a vigorous clockwise circulation of very cold mesospheric air   directly over the Antarctic continent. Cold mesospheric air extends as far north as 30° south latitude. North of 30° south latitude the air circulates in an anticlockwise direction.

Circ 4 Dec

By 4th December (above) the vortex of mesospheric air is much reduced  in its latitudinal spread and 65°C warmer. The zone of air that rotates in an anticlockwise direction has expanded and the internal core that rotates clockwise has contracted.

Circ 10hPa 20 Dec

By 22nd December (above) as the last vestiges of the ozone hole disappear into the wider atmosphere, the air at 10 hPa has reversed in its direction of flow and is now circulating in an anticlockwise direction.  This will persist until the resumption in the intake of mesospheric air as surface pressure over Antarctica begins to build in February.

This is the same process that is responsible for stratospheric warmings in winter except that the winter warming may involve the displacement of the vortex off the polar cap, particularly so in the northern hemisphere. Displacement is extremely rare in the southern hemisphere where the vortex is firmly anchored over the Antarctic continent. The degree of anchoring and the appearance of the ‘ozone hole’ is a function of the distribution of land and sea. The sea supports the development of low pressure (ozone rich) zones in winter and the land supports the development of high pressure zones (rich in dry, relatively ozone deficient mesospheric air). Unlike the southern hemisphere there is no facilitating land mass within the Arctic Circle. Rather there is land in Eastern Eurasia and across northern Canada and Greenland.  The increase of atmospheric pressure  in the northern hemisphere in winter tends to occur over the land masses rather than over the Arctic Ocean.

Accordingly, the synoptic situation in the northern hemisphere is always more complex and less stable.

The relative ozone poverty of the entire southern hemisphere is a product of the strength of the mesospheric flow and the constant escape of this air into the wider atmosphere. The so called ‘vortex’ is actually a chain of polar cyclones that  might be compared to a chain of egg beaters with their mixing heads  set at between 300 hPa and 50 hPa in elevation at an altitude where ozone, and the density of the air is most variable. Accordingly, there is a great deal of horizontal movement and vigorous mixing at this elevation. Egg beaters mix and so too do this chain of polar cyclones.

The notion of a so called containing ‘strong vortex’ that acts as some sort of wall separating  relatively dry cold mesospheric air from ozone rich air on the periphery is nonsense. If the chain of cyclones intensifies,  a wave in the chain develops or a major cyclone breaks free of the chain then cold air traverses lower latitudes. The notion of containment is un-physical.

The notion of planetary waves that supposedly govern the temperature of the polar cap at higher elevations may be likened to the suggestion that the tail wags the dog rather than the other way round. The area of high surface pressure inside a ring of polar cyclones that supports a descending vortex simply expands and contracts according to the flux in surface pressure over the Antarctic continent. When I pass my hand across the surface of a pond is the depression of the water level behind my hand responsible for the movement of my hand?

Some commentators will suggest that the ozone hole is a natural feature of the Antarctic circulation and may be of the opinion that it has been aggravated by chlorine chemistry. This  argument ignores the introduction of NOx to the circulation in the lower stratosphere and the disappearance of the zone of higher surface pressure across the continent enabling the ring of polar cyclones to close in as the circulation over the polar cap responds to reduced surface pressure.

The increase in the contrast in ozone partial pressure as a consequence of the ‘hole’ assists to lower surface pressure across the polar domain in October because it intensifies polar cyclone activity.

The increase in the ozone content of the polar stratosphere on the equatorial side of the low pressure zone as a consequence of the reduced flow of air from the mesosphere acts to strengthen polar cyclone activity, directly reducing surface pressure across the entire domain further weakening the flow of mesospheric air that modulates ozone partial pressure. This represents a strong feedback mechanism that promotes the relatively sudden appearance of the ‘ozone hole’.

There is no response in the wider atmosphere to ozone deletion within the hole.

The temperature of the air is too warm for chlorine chemistry prior to and at the time when the hole reaches its greatest extent.

cHANGE IN TEMP AT 10HpA BY MONTH

In evaluating the argument for aggravation of the hole due to chlorine chemistry  we need to be mindful of certain things:

  • The increase in the temperature of the stratosphere over Antarctica over the period of record since 1948  indicates a diminution in the flow of mesospheric air into the wider atmosphere allowing ozone partial pressure to build. The resulting increase in temperature is most marked in October as we see in the diagram immediately above. This is a function of ozone enhancement in the atmosphere outside the ‘hole’ and ozone depletion within, that acts to reduce surface pressure.
  • If chlorine chemistry were the cause of a hole then it should be reflected in an erosion of ozone and a fall in the temperature of the Antarctic stratosphere generally, both within and without the hole. The reverse is in fact the case.
  • The increase in temperature wrought by ozone increases the vorticity of polar cyclones and the rate of influx of NOx into the lower stratosphere over the polar cap as the hole develops. NOx enters in the horizontal rather than the vertical domain. and therefore  the hole manifests in the lower stratosphere.
  • The reduced surface pressure in high latitudes in October has the effect of stalling the rate of  infusion of mesospheric air in late spring, bringing on an earlier and longer lasting ‘final warming’ involving an earlier and more emphatic choking of the winter circulation. The result is an enhanced presence for NOx in the lower stratosphere and enhanced convection involving a direct enhancement of the ozone deficient ‘hole’ and a marked warming of the upper stratosphere in October as the hole manifests. It is the warming in October that has been the most noticeable change in the southern stratosphere since 1976.
  • Finally, we can note that in terms of inter annual and inter-decadal temperature variability at 10 hPa, from latitude 50° south to the Antarctic pole it is the months of September and October that stand out as extreme. The graph below documents this point.

Variability in 10hPa temp by latitude

Climate variability at any point on the Earth’s surface has two origins. It proceeds via the alteration of the partial pressure of ozone via the descent of mesospheric air either in the Antarctic or the Arctic. The effect of Arctic processes is felt in the Antarctic between November and May (see below). It is in the winter season that polar atmospheric processes drive change. Accordingly variation in surface air temperature is most extreme in winter. The diagram below confirms that point so far as the Antarctic is concerned.

60-90S

POLITICS, ECONOMICS AND GOVERNMENT

These observations  undermine the rationale for the Montreal protocol that involved the limitation of the emissions of certain chemicals supposedly harmful to the ‘ozone layer’. That protocol represents an error of judgement based on  the desire of ‘environmental activists’ to influence public policy. The enthusiasts who promoted this story were and continue to be responsible for a  costly distraction. The inconvenience and waste that has been involved in the implementation of this protocol is regrettable.  The most grievously affected should sue the proponents of the Montreal Protocol and their supporters in government that continue to promote this argument. A vigorous pursuit of those involved is  desirable in order to secure a more circumspect expression of opinion by elements of society hell-bent on promoting the notion that catastrophe of one sort or another is about to engulf mankind. The catastrophe in this case is but a figment of their enthusiastic, no doubt well meaning but ultimately deluded imaginations. These people are in fact ‘the catastrophe’. They should be forced to bear responsibility for their advocacy. They have injured society that trusted their expertise as ‘scientists’. The injury is related to both the material and the intellectual well being of humanity and its notions of self worth. The effect has been wholly pernicious.

WHY HAS THIS CHANGE IN THE ATMOSPHERE OCCURRED BRINGING WITH IT AN INCREASE IN THE OZONE CONTENT OF THE AIR?

The strength of the ‘zonal wind’ that circulates at 50-90° south latitude is related to geomagnetic activity as a product of the Earth’s electromagnetic environment and its response to the solar wind.  The abstract reproduced below appeared on-line in January 2016. It points to a solar influence on the circulation of the air in high latitudes. It is the latest of many papers that have appeared over the last thirty of forty years that point to the same mode of causation, all studiously ignored by those who write UNIPPC reports. The UN  and the EEC have assiduously promoted the story of catastrophic global warming. The UNIPCC analysis is pursued in ignorance of the change in the parameters of the climate system set in high southern latitudes that condition the planetary winds, cloud cover and surface temperature. The promotion of the idea of ‘anthropogenic climate change’ has been pursued despite the manifest inability of climate models to predict the course of global temperature over the last 18 years. It is time to say, enough is enough, to become a little more analytical and for common sense to prevail.

GA activity

A collapse in the zonal wind  represents a reduction in the flow of air from the mesosphere into the polar atmosphere. It results in an increase in the ozone content of the atmospheric column impacting surface pressure, the distribution of atmospheric mass  and the planetary winds.

Let’s be quite plain. Here we are referring to the agent of change in the daily synoptic situation and climate in all parts of the globe on all time scales.

Climate is driven by two influences, one stronger than the other, one operating in the middle of the year (Antarctica) and one at and about its commencement (the Arctic). These influences yield a  tell-tale variation in the temperature of the air according to latitude as documented here.

22 ANTARCTICA: THE CIRCULATION OF THE AIR IN AUGUST

The interpretation of the circulation of the Antarctic atmosphere that is provided below is different to that you will find in climate texts. The distribution of tracers of air of different composition reveals the circulation. There is a notion that the polar vortex constitutes a barrier to interaction, people speaking of a strong or a weak vortex……..all this is nonsense. Then there is the notion that ‘atmospheric waves’ disturb the vortex….well…. perhaps in fairyland.

Our interest in  ozone is primarily driven by the fact that we are aware of the protective effect that it provides via the mopping up of ultraviolet light that is harmful to life at the surface of the planet.

There have been many scares related to ozone depletion in the last fifty years. There have been concerns about the effect of spray can propellants, refrigerants and supersonic jets on the upper atmosphere. The most celebrated concern relates to the Antarctic ‘ozone hole’, a natural feature of the Antarctic circulation in late winter that is said to be aggravated due to the influence of man. The hole was first noticed at Halley Bay in 1956 using Dobson’s spectrophotometer. It existed prior to the  concern for the ozone environment. Today it is too often mistakenly suggested that ‘the hole’ is entirely the result of the activities of man. The Montreal Protocol was designed to end the manufacture of the substances held to be responsible for ozone depletion. These substances include Chlorofluorocarbons, Halons and Carbon Tetrachloride.

As documented in previous posts, ozone has a dominant but unrealised role as a natural greenhouse gas that accounts for the differences in density in the ‘weather-sphere’ that is in turn responsible for the synoptic situation that drives winds and weather across the globe. The weather-sphere manifests in mid to high latitudes. It includes the upper troposphere overlapping both troposphere and the tropopause where the temperature does not change with altitude. In mid to high latitudes the ‘weather sphere’ constitutes  the middle of the atmospheric column centred on the 100 hPa pressure level.  It does not include the troposphere below 600 hPa. Change in the ozone content in the weather-sphere drives change in climate. This natural source of climate variation manifests as marked variations in surface temperature associated with atmospheric processes. These processes are most marked in the winter hemisphere.  The processes result in extreme variations in surface temperature in January and July that originate in the Arctic and the Antarctic respectively.  There is a demonstrable relationship between ozone, surface pressure and the height of the tropopause. Knowledge of this relationship dates back to the first half of the 20th century, particularly in the works of GM Dobson and the French Meteorologist de Bort who explored the upper air with helium balloons at his own expense.

Realising the significance of ozone to the synoptic situation it is therefore a matter of interest to explore the mechanisms that account for the concentration and distribution of ozone in the atmosphere and  in particular to elucidate such phenomena as:

  • The increase in the ozone content of the air in the winter hemisphere.
  • The historical trend to a warmer stratosphere in the southern hemisphere, involving a marked ramp up in temperature in the late 1970s with peak warming in October that has been maintained to this day.
  • The maintenance of high ozone concentrations in polar atmospheres into spring in spite of the gradual shortening of the atmospheric path after mid winter.
  • The intensification of cyclone activity off Antarctica through to September/October in conjunction with the appearance of the Antarctic Ozone Hole.
  • The long term loss of atmospheric mass (reduction in surface pressure) in high southern latitudes between 50° of latitude and the Antarctic pole.
  • The reasons for the generalized deficit in ozone in the southern by comparison with the northern hemisphere.
  • The circulation of the atmosphere as it responds to and in turn influences the concentration of trace gases according to latitude and altitude.
  • The role of the high latitude circulations  in regulating the distribution of ozone and the substances that naturally deplete ozone including H20 and Nox that are abundant in the troposphere.

The Copernicus Atmospheric Monitoring Service via  this site provides us with data  showing the composition of the atmosphere over Antarctica:

Seasonal variations in the stratosphere are much more extreme than at the surface. Our examination of the Antarctic atmosphere is focussed on a single day, August 20th 2015 when the temperature of the stratosphere is advancing steeply from its winter minimum  in  the first week of August as is apparent in the diagram below.

50hPa T Antarctica

Chapter 21 is required reading if the reader is to understand the movements in the air described in the current chapter. The reader must comprehend the nature of the ‘weather-sphere’, an entity that is neither troposphere nor stratosphere as conventionally defined.

In the next chapter we will move forward in time to chart the development of the Antarctic ozone hole.

AUGUST 20th 2015

Nox 20Augozone with overlays

 

In this analysis we depend upon pattern recognition. Both NOx (oxides of nitrogen) and H2O (water) destroy ozone. NOx is uplifted from the troposphere by convection in the tropics. The tracing applied by the author to the first diagram is duplicated as an overlay on the diagram below.

It is clearly evident that NOx is very much involved in the destruction of ozone in low latitudes accounting for the relatively high tropopause and extremely low temperature at 100 hPa over the equator. The activity of NOx  under the influence of generalized convection in low latitudes helps us to understand why ozone partial pressure is greater near the poles. Another factor tending to promote the presence of ozone at higher latitudes is the increased length of the atmospheric path that absorbs some of the short wave energy responsible for the photolytic destruction of ozone and especially so in the night zone in winter.

The banded, ribbon like structure in ozone rich air at 100 hPa is a response to the west to east movement of the atmosphere driven by the high speed circulation of the air inside and outside the polar vortex that increases in velocity with elevation up to and beyond 10 hPa. Tracers of air  from the polar circulation spiral outwards towards the equator as streamers caught in air that has an equator-wards component in its direction of movement. In understanding the atmosphere one must comprehend the forces that are at work at 100 hPa in mid to high latitudes.   If there is an outstanding problem in climate science it is the failure to appreciate the forces involved in generating differences in air density and the fact that the energy supplied by the surface is relatively inconsequential in comparison with the forces at work in the vicinity of the tropopause.

Ninety nine percent of the atmosphere lies below the 10 hPa pressure level. The elevation at 10 hPa is just thirty kilometres. The surface circulation rotates in the same direction as the Earth at a faster rate than the rotation of the Earth itself.  The atmosphere at 10 hPa super-rotates at an even faster speed. It appears that the atmosphere is an electromagnetic medium where the motive force contributing to the winter circulation increases with elevation, particularly over the pole. Recent research identifies a response of the zonal (east-west) wind in high latitudes to geomagnetic phenomena. As an electromagnetically responsive medium, the  upper atmosphere is impacted by the solar wind because it changes the electric fields. The response to this change is via the distribution and the concentration of ozone and other trace gases. We know this because there is a  change in the height of the ‘tropopause’ that is linked to geomagnetic activity. Accordingly, what is described here is ultimately linked to activity on the sun.

On the perimeter of the Antarctic continent intense upper air troughs are formed that propagate downwards towards the surface as an ascending circulation with the cellular structure of a polar cyclone. Meteorologists monitor the strong winds of the jet stream  at 250 hPa but these are not the strongest winds in the polar circulation. In mid winter the strongest winds are to be found at the highest altitudes. Essentially the circulation responses to forces aloft rather than forces at the surface.

The 100 hPa pressure level is plainly, given the circulation of ozone in the air evident in the left hand diagram, a mixing zone where ozone rich air circulates in peripheral contact with ozone deficient air located over the continent. This mixing is material to the development of polar cyclones that drag up air from the near surface layers but even more so, attract mid latitude air towards the core  in the horizontal plane where the more important differences in atmospheric density and wind strength manifest.  The location of very cold dry air of mesospheric origin is indicated in the diagram above by a blue line that marks the perimeter of very cold, very dry air. The blue line is derived from the diagram at right below.

A striking feature of the circulation at 100 hPa is the heterogeneity in the composition of the air. This is a matter of immediate interest. How and why does this pattern manifest? What accounts for the ozone deficit between ribbons of air that exhibit an elevated ozone content when plainly, at high latitudes, at the 100 hPa elevation, there is no NOx present? The direct ascent of NOx from the surface is not evident at 100 hPa . Plainly the ozone is being drawn into and traversing a domain of very different air that has a much lighter ozone content and virtually no water content, devoid of NOx, indicating a process of lateral mixing where the ozone traversing the polar domain, perhaps due to a limited rate of intrusion, becomes a minor part of the composition of the air behind the vortex. Notice that at the 100 hPa level peak ozone concentration is 1.6 ppmv whereas it ramps up to 5 pppv  at 50 hPa.

The vortex actually constitutes a chain of discrete low pressure cells that surround the continent. The essence of each independent cell is the ingress of parcels of air that are essentially very different in temperature and chemical composition. The vortex is not an exclusive but very much an inclusive, homogenising process that can never run to completion, even though it may more closely approach homogenization in summer. The vortex constitutes a very different set of phenomena to that described in conventional climate science texts.

The circulation at 100 hPa is indeed a classic spiral of the sort that manifests when pigment is mixed into a can of house paint, but in this case a mixing process that can never reach completion.

 

Source of diagram at left here.

winds etc

 

H20

In the top diagram we have wind and temperature at 250 hPa and superimposed on that, the distribution of Nox and ozone at 100 hPa. On the second diagram we have the distribution of H2O, and superimposed on that the distribution of both NOx and ozone.

It is plain that:

  • The ozone content of the air at  100 hPa is closely associated with differences in air temperature and the flow of the circulation. We know that the ozone content of the air at 500 hPa through to 100 hPa and above is closely associated with the synoptic situation at the surface. Upper level troughs drive the circulation of the air in mid to high latitudes. Upper level troughs are associated with warm air heated by ozone. Troughs manifest in maps of geopotential height, upper air temperature and upper air ozone content as seen here. These are the essential aspects of the weather-sphere, an upper air rather than a near surface phenomenon.
  • There is more water in the air at 100 hPa in near equatorial latitudes and very little over the Antarctic continent. The water in the tropics is in the same zone that exhibits elevated NOx. The uplift of moisture and NOx in low latitudes is patently an influential dynamic affecting the ozone content of the global atmosphere.
  • The zone of very low temperature over Antarctica is associated with air that contains very little moisture, some ozone but no NOx. At its heart is a rotating, three pronged mass of very cold dry air shaped like a tyne in implement that could be towed behind a tractor to till the soil. This is primarily air that has descended from the mesosphere. Mesospheric air descends in winter under the influence of high surface pressure. The rate of  descent of this air is a prime determinant of the ozone content of the global atmosphere, much more influential that fluctuations in the quantum of short wave solar radiation emanating from the sun.
  • Ozone rich air that is warmer than tropical air  lies between the warm, wet, Nox rich air of the tropics and the cold, very dry air descending from the mesosphere.
  • In the mid latitudes appreciable quantities of moisture from the near surface atmosphere are associated at the 100 hPa level with warm, low density air containing ozone. H2o is conjointly an absorber, with ozone, of infrared radiation. In the weather-sphere it is variations in air density that determine the synoptic situation that is mapped at 500 hPa and at the surface. Water vapour and ozone are allies in determining the density of the upper air.

Lets now look at ozone and NOx at 100 hPa from an equatorial perspective.

Mercators

In the global (rather than the polar stereographic) view, we see that the zones of elevated NOx content at 100 hPa are  associated with zones of low ozone concentration in low and mid altitudes. In August ascending NOx from the troposphere affects ozone concentration from 50-60° North latitude to about 40° south latitude.  Plainly NOx tends to reduce ozone concentration more in the summer than the winter hemisphere. Because of the distribution of land and sea the annual range in temperature (and convection) is much greater in the northern than the southern hemisphere.

There is a staccato wave like pattern of enhanced NOx/depleted ozone exhibiting a north south orientation across the near equatorial latitudes. These features may be causally associated with the ‘equatorial Kelvin waves’ observed by meteorologists.

Plainly the greatest impact of NOx on ozone at 100 hPa is seen in the northern hemisphere. However, trace amounts of NOx have a relatively severe depletion effect on the ozone content of the southern lower stratosphere that is apparent in the wing like extensions south of latitude 30° south.

Despite the enhanced attack of NOx in the northern hemisphere ozone levels are always higher than in the southern hemisphere indicating that the more influential driver of change in hemispheric ozone is by far the intake of air from the mesosphere at the respective poles.

Lets transfer our attention to ozone and NOx at the 50 hPa level.

50hPa mercators

Note that the ozone profile traced in the higher diagram is overlaid on the lower diagram. The zone of elevation of the air associated with polar cyclones is centred on latitude 60-70° south that is poleward of the annular ring of higher ozone values at 40-70° of latitude on the margins of the Antarctic continent In fact it lies between ozone rich air to the north and ozone deficient air over the continent. This is the mixing zone. We might call it the Polar Front. Its a meeting place where things get stirred together. It exhibits the lowest surface pressure seen anywhere on the planet and it manifests as chain of polar cyclones.

The pattern of surface pressure across the globe in August is documented below, courtesy of the JRA 55 atlas to be found here. If we compare the pattern of surface pressure with  the distribution of NOx the two are identical. At 50 hPa NOx is plainly a marker for uplift.  That uplift involves a lateral intake of NOx rich air between the 100 hPa level where NOx is not evident and the 50 hPa level where NOx is evident. Lateral movement of the air is  a very strong feature of the polar circulation surrounding the Antarctic continent. NOx and ozone are entrained at this level,  one acting to some extent as a marker for the other. Note the ribbon of ozone deficient air that lies between the band of ozone rich air and the margins of the continent. It is not the edge of the landmass that governs the location of the circulation even though it may appear to do so. A mass of sea ice surrounds the continent in August.  Rather, it is the surface pressure arrangement with a planetary high in surface pressure over the continent itself and a planetary low at 50-60° south latitude. This is the undiscovered gorilla in the climate science chamber of conceptual errors.

SLP August

50hPa

Referring now to the diagrams immediately above: The core of air with depleted NOx marked ‘mesosphere’ is surrounded by NOx rich air at 50 hPa. Air that contains NOx is drawn in laterally to participate in the high latitude circulation via intense polar cyclones that elevate air into the stratosphere. These cyclones do not respect a hypothetical ‘tropopause’. These cyclones are more intense in terms of geopotential height contours (or isobars) at 100 hPa than at the surface. It is at this level that the energy to drive the circulation is to be found. The circulation is powered by long wave radiation from the Earth whether the sun is below the horizon or above the horizon. The rotation and the uplift is a function of differences in the ozone content of the air…….unknown to climate science.

In the core of the Antarctic circulation there is a zone of mesospheric air that is devoid of NOx. At left we see that the ozone content of this core of mesospheric air is similar to the air in near tropical latitudes. We do not expect air from the mesosphere to contain much ozone.  It is present as a direct result of the intake of ozone rich air that spirals inward towards the heart of the circulation situated more or less over the geographic/ magnetic pole. This process adds ozone to the parcel of mesospheric air that lies within the core disguising its real character. Mesospheric air dilutes the ozone content of the global stratosphere.

Note that tracers of ozone outside the zone of heaviest concentration  at 50 hPa are associated with tracers of NOx. This represents air spun out from the vortex circulation towards mid and low latitudes. The source of these tracers is seen in the structures at 5 to 6 O’Clock and another at 2 to 3 O’Clock. There is  plainly a process of vigorous horizontal mixing at 50 hpa that gives rise to these streamers of air rich in both ozone, NOx and H2O. The latter must be ultimately derived from the lower, near surface atmosphere, perhaps elevated by polar cyclones that travel equator wards into the mid latitudes. Unless we comprehend a ‘weather-sphere’ that is driven by ozone heating and in doing so discard our notions of an ‘ozone free troposphere’ extremes in lateral movement in the middle atmosphere can not be comprehended. Only when we allow for differential heating of the air according to its ozone and water content   can we account for the differences in density that give rise to these powerful upper air movements.

The observation that total column ozone maps surface pressure in the mid latitudes inevitably leads to a very different  idea as to what constitutes the ‘weather-sphere’. It leads to the conclusion that it is ozone in high latitudes that drives the global circulation rather than solar energy acquired in tropical latitudes. Effectively, we tip UNIPCC climate science on its head and give it a damn good shake. It’s wholly and abundantly necessary.

Pressure etc

We see above a comparison between wind at 70hPa, surface atmospheric pressure, the ozone content of the air and the H2O content of the air, the latter at 50hpa.

There is a marked deficit in H2O inside the margins of the Antarctic continent associated with air of mesospheric origin.  The wettest air, if air containing 5.5 ppm by volume can be described as wet, lies partly within and across the inside margin of the ozone rich zone at 50 hPa. Above, we see that this air is NOx rich. This zone exhibits extremely low surface atmospheric pressure. Relatively warm air from the surface westerly flow is drawn in and elevated with ozone rich air that is also wet, the two ‘greenhouse gases’ warming by absorbing radiation from the Earth itself.

H20 and NOx

Above we see that the distribution of NOx and H2O is co-extensive lying between the very cold dry air from the mesosphere and  the band of ozone rich air charted in the earlier diagrams.

We are now in a position to describe the nature of the air in the ascending columns within polar cyclones. That air at near surface elevations derives from the westerly stream being relatively rich in both NOx and H2O and the polar easterly stream of near surface air off the continent.  Above the 500 hPa pressure level the circulation is invigorated and its composition changes. Ozone rich air is anomalously warm. Uplift is generated aloft where warm, ozone rich air is reinforced with air containing water both constituting potent absorbers of long wave radiation from the Earth.

STRUCTURE OF THE ASCENDING AND DESCENDING CIRCULATIONS

Ozone all levels

Above left we see a representation of peak ozone content of the air at 50 hPa as a tracing over the map showing the composition of the air at 10 hPa. The map at right shows Total Column Ozone. It is apparent that there is a widening of the annular ring of high ozone values with increasing elevation. This cone shaped space over Antarctica is occupied by mesospheric air in winter and spring under a regime of high surface pressure over Antarctica. In fact surface pressure over the continent regularly attains a planetary peak at about 1050 hPa.

There is no parallel to this structure in the northern hemisphere. If there were the evolution of the climate of the Earth would be very different.

Below we see the temperature of the air and its circulation in the clockwise west to east fashion about the globe with the view centred over Antarctica.

circulation at 70hPa and 10hPa

Between 70 hPa (17 km) and 30 hPa (30 km) the air ascends as it circulates and it warms due to the fact that it is the warmer, less dense air that preferentially ascends. The tracing representing total column ozone in pink is roughly co-extensive with the warm zone.This is the reason why the stratosphere at 10 hPa is warmer near the winter pole than it is over the equator. It is the accumulation of ozone at elevation and its ability to derive energy from infra-red radiation from the Earth itself (in the relative absence of short wave radiation from the sun) that produces the warm zone centred on about 35° south latitude at 10 hPa. Here is another error in UNIPCC climate science. The stratosphere at and below  10 hPa owes its warmth to long wave radiation from the Earth, not short wave radiation from the sun.

Within the column of colder air that descends in the core of the circulation, the air at 50 hPa is 12°C cooler at 70 hPa than it is at 10 hPa. This testifies to the importance of lateral movement in the stratosphere that allows cold air to enter the circulation other than via vertical descent.

The core of the circulation is relatively ozone deficient. However, the ozone content of the core does not represent the ozone content of mesospheric air because it is a function of mixing processes at all levels. Ozone is introduced from the perimeter.

So far as NOx is concerned, the evidence is that it enters the descending core primarily via ascent from the lower atmosphere rather than descent from the mesosphere although the latter can not be ruled out as an influence on the composition of the air that enters the circulation from the mesosphere. The descent is slow and there is time for reactions to occur.

The evidence suggests that the most vigorous mixing across the air streams occurs between about 300 hPa and 50 hPa.

The lapse rate of temperature in the Antarctic atmosphere below 100 hPa is much less than in the mid and low latitudes reflecting a significant ozone presence down to the near surface layers. As surface pressure increases so does the rate of descent bringing warmth to the surface that is always colder than the atmosphere.

Mixing is evident in the streamers of air that radiate from the core between 100 hPa and 50 hPa. Mixing involves the escape of cold air of mesospheric origin into the wider atmosphere imposing an ozone control dynamic with rate of flow of mesospheric air a function of surface pressure and geomagnetic influences. In this way, the polar atmosphere is set up for solar control of the synoptic situation globally.

In the next post I will explore the manner in which NOx from the lower atmosphere floods the lower stratosphere to produce an ‘ozone hole’ in the lower stratosphere as the temperature of the stratosphere rapidly increases in spring cutting off the flow of cold air from the mesosphere, dramatically reducing the rotation speed of the polar circulation and by late December temporarily reversing its flow. It then circulates in an anticlockwise direction at 10 hPa while maintaining its clockwise circulation at and below 70 hPa despite the flooding of the polar cap with slowly moving warm, relatively ozone rich air and the almost complete disappearance of cold mesospheric air. Nevertheless, it appears that strong lateral flows in the region of 250 hPa to 100 hPa continue to supply very cold dense air that rotates in an anticlockwise fashion in localized high pressure circulations over the Antarctic continent as a less frequent adjunct to a zone that continues to be characterised by dramatically low surface pressure, a product of polar cyclone activity.

CONCLUSION

Understanding the polar circulation is necessary if we wish to understand the origins of natural climate change and with it the true origins of the modern warming. If that is possible, much time, trouble, waste and distraction can be avoided.  Humanity can then get on with the business of supporting itself, pursuing the process of technological change and performing work with machines that will raise living standards without the worry that  it  is storing up trouble for the future.

 

 

21 THE WEATHER-SPHERE: POWERING THE WINDS

Wind is air in motion flowing from areas of high to low surface pressure. Movement in the air involves the displacement of low density air by high density air. Warm  air is less dense. Extreme wind speeds arise when the difference in density is greater and the contrasting air masses closer together. At the surface this manifests as closely packed isobars, lines of equal atmospheric pressure. It follows that wind speed is an indicator of the extent of the difference in density between different parcels of air. In winter cold air from the mesosphere lies on one side of the polar front and ozone rich air is adjacent giving rise to extreme winds, the polar arm of the Jet Stream.

In general, in mid latitudes wind speed increases to about nine kilometres  in elevation and reduces thereafter. This is not the situation in the tropics or at the poles. Commercial airliners travel at 10-11 kilometres of elevation to reduce friction. But wind strength and direction in relatively rarefied air is still an important factor determining fuel consumption and journey times.

This fact of increasing wind speed with elevation is peculiar because we think that the air is heated by the surface of the Earth and the greatest differences in air density should manifest close to the surface of the planet. But, in the tropics the air moves sluggishly because the air tends to be uniformly warm. There is a long held notion that heating of the air in tropical latitudes drives the planetary circulation, but as we will see, that notion is incorrect.

Some winds at the surface are plainly related to differences in air density at and near the surface. These are due to heating by warm surfaces (sea breeze, land breeze, monsoons and the Trade Winds) and the release of latent heat including tropical cyclones. But winds at an elevation of 7-17 kilometres in mid to high latitudes, including ‘jet streams’, are more powerful, persistent and affect a wider sweep of latitudes across both land and sea than any wind at the surface. It is the wider variations in air density found  aloft that powers these strong winds that tend to circle the planet.

It is essential to realize that the source of energy that excites ozone is primarily from the Earth itself. Ionizing short wave radiation from the sun is  scarce at 9 kilometres in elevation. Wave lengths of 9-10 um (micrometres) from the Earth are plentiful and these excite ozone. The response increases as the density of the air increases. This energy is available day and night, winter and summer and from the surface to the limits of the atmosphere. In contrast short wave radiation from the sun is progressively truncated in heating the atmosphere, it heats only the upper air, more especially in summer and more especially above 10 hPa.  Ninety nine percent of the atmosphere is located below the 10 hPa pressure level. Conjoint heating by long wave radiation from the Earth and short wave radiation from the sun produces a temperature peak at the 1 hPa pressure level in summer as is evident in the diagram below. For a discussion of the relative contribution of short wave and infra-red radiation to the temperature of the air according to latitude and altitude see here. 

Arctic Temp profile

The descent of mesospheric air in winter provides a strongly variable cooling dynamic in the polar atmosphere that is unrelated to surface temperature (see above). It is apparent that the air in the Arctic at 30 hPa is cooler in winter 2015-16 than it was in 2014-15 pointing to large variations in the intake of cold ozone deficient mesospheric air from year to year.

The air at 60-90° of latitude and especially above 10 hPa is prone to sudden warmings as the vortex of cold mesospheric air is displaced off the pole or withdraws back into the mesosphere. The relative presence and the extent of the vortex is surface pressure dependent with pressure rising to its annual peak in winter due to heating of the atmosphere in the alternate summer hemisphere.

TROPOSPHERE AND STRATOSPHERE

To facilitate discussion we need definitions: It is customary to speak of a ‘troposphere’ in that region where temperature declines with increasing elevation and a stratosphere where temperature increases with extra elevation. Between these two we have a ‘tropopause’, the interval between the troposphere and the stratosphere where temperature neither increases nor decreases.

In the diagram below that relates to 30-40° south latitude, temperature declines with elevation to 100 hPa fitting our definition of troposphere. Note that the vertical axis is inverted. Rising up the axis indicates a fall in temperature. Think of it is rising into the atmosphere with the cooler air above.

There is no further decline in temperature with elevation between 100 hPa and 70 hPa and in fact the temperature traces for these two pressure levels overlap. This interval between 100 hPa and 70 hPa fits our definition of the tropopause. The vertical interval  is 2 kilometres.

20-40S T profile 2014

At the surface peak temperature occurs in January whereas in the stratosphere the peak establishes in August-September at which time ozone partial pressure reaches its annual peak. The winter maximum is an excellent demonstration of the heating power of ozone as an absorber of infra-red in the absence of short wave solar radiation. Plainly the temperature of the atmosphere that contains appreciable amounts of ozone is not driven solely by conduction of sensible heat emanating from the surface. It is driven by the ability of ozone to absorb radiation at 9-10 um. The result is a temperature peak in winter both in the stratosphere and also  immediately below the tropopause. The presence of ozone is plainly apparent in the distortion of the curve at 300 hPa. The vertical interval between 100 hPa and 300 hPa spans a distance of 7 kilometres.

In addition we should note that the temperature profile in the mid latitudes is different within high and low pressure cells. The tropopause is initiated at a lower altitude in cells of lower surface pressure than in cells of higher surface pressure. This difference amounts to as much as 2 kilometres.  Adding these intervals together we have 2 (the ‘tropopause’ between 100 hPa and 70 hPa) +7 (ozone affected troposphere from 300 hPa to 100 hPa.) +2 (surface pressure dependent) an interval of 11 kilometres below the ‘stratosphere’ that notionally begins at 70 hPa.  Within this 11 kilometre zone below what we are calling the ‘stratosphere’ the temperature of the air and its density is to variable extent affected by the presence of ozone.

Low pressure cells have as much as 40% higher total column ozone than high pressure cells, the difference manifesting above 600 hPa. Gordon Dobson observed an average 25% decline in total column ozone between the margins of a high pressure cell and its core.

Plainly this zone where ozone affects the temperature and density of the air that is below the ‘stratosphere’ (as defined above) will exhibit large differences in air density in both the horizontal and vertical domains.

The question arises: Do the definitions of Troposphere, Tropopause and Stratosphere introduced  above, assist our understanding of atmospheric dynamics or do they retard it.  We have no term that applies to this ozone affected interval, 12 kilometres in vertical extent where the variable presence of ozone drives variations in air density. This is surely anomalous because these variations in density give rise to the synoptic situation at the surface. The essential properties related to the generation of strong winds relate to the presence of ozone and yet we exclude all of this zone from what what we define as ‘the stratosphere’ and we call it either ‘troposphere’ or ‘the tropopause’.

If we exclude the 7 kilometre of the upper troposphere where temperature is plainly affected by the presence of ozone then the 15 km ‘troposphere’ that notionally extended all the way to 100 hPa now ends at 600 hPa. Our troposphere is almost halved in vertical extent. Where surface pressure is low in the mid latitudes the portion of the troposphere that is unaffected by ozone is only 5 kilometres deep. In higher latitudes it is lower again. Furthermore, the ‘non stratosphere’, ozone affected portion of the column that is 12 km in vertical extent in the mid latitudes increases in depth towards the poles.

Looked at in another way the troposphere and the ozone affected ‘non stratosphere’ that we have designated as tropopause, while overlapping, together extend to an elevation of 17 kilometres that brings us to the 70 hPa pressure level incorporating 93% of the atmospheric column. But in fact the upper 15 kilometres is ozone affected comprising almost half of the weight of the entire atmospheric column.

Plainly, whatever we call it, this extensive region is set up for extreme wind velocity and it is this circumstance that  drives the synoptic situation in mid to high latitudes.

There is another complication that has to be born in mind if we wish to understand atmospheric dynamics based on differences in air density. In winters the descent of mesospheric air so cools the polar atmospheric column that the point where temperature begins to ascend establishes at 30 hPa and, episodically up to 10 hPa. According to our definition the ‘troposphere’ (temperature falls with elevation) now extends to 30 hPa taking in the bulk of what we have been hitherto referring to as the ‘stratosphere’. So, according to our definitions the upper limits of the ‘troposphere’ rise up and down like a yo-yo on a string according to the strength of the mesospheric flow across the year.

Revealed is the crippling result of adhering to current thought patterns that describe the structure of the atmosphere. It is no wonder that climate science practitioners struggle to provide an explanation for the annular modes phenomenon involving shifts in atmospheric mass forced by polar cyclone activity. According to ‘climate science’ all surface weather has its origins in the ‘troposphere’ and that is taken to rule out any role for ozone in forcing density variations  where the Jet Streams manifest. According to climate science heating at the equator energises the planetary winds. In fact the reverse is the case. It is the heating of the high latitude atmospheric column above 600 hPa (6 km) by ozone that forces the Jet streams and polar cyclone activity that in turn forces shifts in atmospheric mass that change the climate.

Structure diagram

PLAIN SPEECH

Almost two thirds of the depth of the ‘non stratosphere’, from 6 km to 15 km  in elevation, comprises air that is affected by the presence of ozone in sufficient amounts to affect its density. This region is where the strongest winds are to be found in the mid latitudes.

Let me reiterate the point: Due to the heating powers of ozone we have an interval from about 6 km in elevation extending upwards to the point where temperature begins to increase with elevation (17 km), and higher depending upon latitude, where the partial pressure of ozone differs between low and high pressure cells.

New definition: The weather-sphere is that part of the atmosphere where differences in air density give rise to movements of the air that we call ‘wind’ that propagate down to and affect conditions at the surface. The upper limit of the weather-sphere is found at ever higher altitudes as we approach the poles including the entirety of the stratosphere. Density differences aloft are due to variations in the partial pressure of ozone.

The so called ‘coupling of the stratosphere with the troposphere’ is now not such a mystery as it might have appeared to be. Because the ozone content of the air in the weather-sphere changes over time there is a rationale for the annular modes phenomenon described here by Wallace and here by Thompson.

The weather-sphere is neither the troposphere nor the stratosphere as traditionally defined. It manifests where there is heterogeneity in the distribution of temperature and air density in the horizontal domain. Its defining character is air moving from areas of high to low surface pressure. It manifests in mid to high latitudes determining wind direction, air temperature, cloud cover and rainfall.

So far, our reference point for this discussion has been the mid latitudes.  Let’s now turn our attention to high latitudes where contrasts in air density due to differences in the ozone content of the air are more extreme than in the mid latitudes. The Polar Regions are a hotbed of activity between ozone rich and ozone poor parcels of air throughout the full extent of the atmospheric column and particularly so in winter.

THE ANTARCTIC IN MID WINTER

I focus on Antarctica, not as a parochial resident of the southern hemisphere but because I am aware that change in Antarctica is much more substantial than in the Arctic. In fact it drives climate globally as described here: 

There is no easier way to appreciate the characteristics of the atmosphere than via this site:   The variables of interest are surface pressure, air temperature, and wind speed. The nullschool site provides a history of the atmosphere on a three hour time schedule going back several years based on data from GFS/NCEP/US National weather service.

We examine the circulation of the air in the southern hemisphere  on the 21st of June 2015. The diagram below relates to the 10 hPa (30 km) pressure level and is centred on the Antarctic. At left we have air temperature and at right the velocity of winds in the horizontal plane.

10hPa

Pole-wards of 35° south latitude a wide band of very cold air rotates in a clockwise circulation at speeds between 250 and 370 km km per hour. The air is coldest above the pole at minus 84°C. It is in fact mesospheric air that descends within this vortex incorporating a flow of ozone enriched air from the stratosphere from the margins of the circulation as it does so. The result is a relatively smooth gradient in  temperature falling away from the equator through to the pole. Wind velocity falls away approaching the core of the circulation. The core region of gentle descent is directly over Central Antarctica. This circulation represents the largest cell like circulation in the atmosphere. It takes the form of a massive high pressure cell that narrows in its descent, driving down temperature of the atmospheric column all the way to the surface where its distribution determines surface temperature. The air is warmer than the surface of the continent that is in darkness. At 10 hPa we see the temperature distribution below:

10hPa T

The relatively greater penetration of cold air above Antarctica by comparison with the Arctic is apparent. At the same time we see that there is strong variability from year to year, effectively changing the ozone content of the high latitude atmosphere. Note the warming after July in 2014  that affected both hemispheres simultaneously.

In the lower stratosphere at 70 hPa we have temperature to the left and wind to the right.70hPa T and W

At 70 hPa the circulation is less vigorous than at 10 hPa. There is an annular ring of relatively warm air located at about 30-50° of latitude at a temperature of minus 57°C sandwiched between parcels of air that is 10°C cooler, rather less than the 15°C  difference at 10 hPa. The circulation is clockwise. Wind speeds range from 100 to 130 km per hour within and without the core of cold air. Discontinuities in temperature within the rotating circulation are associated with warm air rising above inflows of cold air from the middle and low latitudes. Note that core temperature at 70 hPa is cooler than at 10 hPa reflecting a different mixing dynamic.  Below we see again the relative strength of the Antarctic circulation reflected in the temperature of the air at 70 hPa and the relative coolness of temperature at low latitudes in winter by comparison with the situation at 10 hPa where warm air floods across mid and low latitudes, the result of a convective circulation that takes ozone aloft in high latitudes. At 10 hPa it circulates either towards the descending column of air over the pole or the descending columns of air in the mid latitudes.

70hPa T

Below we see  total column ozone  at left and at right a trace of ozone distribution superimposed on surface air pressure and the circulation of the air at 250 hPa. A ring of low surface pressure surrounds Antarctica made up of linked chain of intense cyclones with core central pressure of 950-960 hPa as low as in the core of a category 4 tropical cyclone but extending over the entire latitude band from about 50-70° south latitude.

TCO and SLP and 250hPa wind

There is a loose correspondence between ozone and surface pressure.  This is to be expected because air masses  rotate at different speeds at different elevations within the column. On the margins of the ozone rich air the pattern of movement of the air closely corresponds with the pattern in the distribution of ozone. The 250 hPa pressure level may be close to the elevation where the greatest differences in air density manifest in mid latitudes but if wind speed is our proxy then the 10 hPa level is where the greatest density differences manifest.

Below, is shown the temperature and the circulation of the air at 250hPa

250hPa

At 250 hPa the descending air in the core over Antarctica is 15° C warmer than at 70 hPa. This is evidence of mixing with warmer air from the periphery as the air descends. On the margins of the coldest air there is warmer air at -49°C a difference of 20°C. The warmer air on the margins of the core ascends to provide the well resolved warm ring of ascending air that we saw at 70 hPa and with a greatly expanded circumference at 10 hPa.  The coldest air at 250 hPa extends well beyond the margins of the Antarctic continent and over the relatively warm sea. The warmest air at 250 hPa and at 70 hPa is found above the ocean on the margins of the continent.

Jet streams moving at between 150 km/hour and 300 km/hour lie on the inner and outer margins of the annular ring of relatively warm air that ascends in a clockwise spiral of intense activity. It is the existence of this annular ring of warm air that gives rise to and defines the character and intensity of polar cyclones. The result is a marked deficit in surface pressure at 60-70° south latitude that persists year in and year out but changes in its intensity on centennial time scales. It is this ring of cyclones that governs the anomalous shifts in atmospheric mass responsible for change in the planetary winds and surface temperature.

250hPa Air

Examining the temperature profile at 250 hPa in more detail we see warm air rising above cold air. The cold air dives under the warmer air that initiates the development of polar cyclones. Thus polar cyclones have warm air at their hearts, initiating uplift. The circulation of the air about the centres of lowest surface pressure reflects the pattern of movement in the warm air component of the circulation.

The diagram below is evidence of the strength of the ozone driven circulation on the margins of Antarctica. The loss of surface pressure at 60-70° south between 1948 and 2014 is due to an increase in the partial pressure of ozone in the atmosphere over that time interval.

July pressure

 

500 hPa

At 500 hPa (above) the thermal character of the atmosphere is defined by its circulation with polar cyclones manifesting on the perimeter of the zone of colder air that has the same morphology as it exhibits at 250 hPa . At the perimeter of the cold air there is a belt of strong winds associated with the margins of the polar vortex aloft. This is the manifestation of the polar front Jet Stream. At 500 hPa there is little evidence of the weaker subtropical arm of the jet stream.

800 hPa

At 850 hPa (1 km) the morphology of the jet stream is reflected in the strong winds associated with individual polar cyclones but the winds are muted in comparison with those at higher elevation. The forces that generate this pattern at the surface manifest  at altitude between 250 hPa and 10 hPa in response to the distribution of ozone in the atmosphere.

THE JET STREAMS

The Jet streams have two sources. One arm manifests near the pole and the other in the subtropics.  Near the pole in winter the entire zone from 500 hPa through to the top of the atmospheric column is involved with the strongest winds of up to 450 km/hour at 10 hPa in spring time.  In Australia it is recognised that September-October brings gale force winds. It is at this time that the partial pressure of ozone on the margins of Antarctica peaks and the ozone hole manifests providing the steepest contrast in air density.

The defining characteristic of the strongest jets streams is a marked difference in air density between cold ozone deficient air that descends from the mesosphere (-80°C at 70 hPa and -67°C at 250hpa) and ozone rich air on the equatorial side of the polar front that may be 40°C warmer. We habitually measure wind strength in terms of the horizontal. The core of the independent low pressure cells within the circulation at 250 hPa (ascending air) is much more extensive than a tropical cyclone. The energy to create the circulation is provided by the Earth itself per medium of ozone. From 250 hPa upwards the circulation resolves into a single stream of air circulating on the margins of cold mesospheric air and ascending as it does so. Geostrophic balance is preserved by descent over the pole and in the mid latitudes, the latter implying a cloud cover vacillation. In this way ozone is recycled at elevation between high and mid latitudes and returned to high latitudes by the near surface westerlies.

The subtropical jets are on the margin of ozone deficient air of tropical origin and ozone rich air from higher latitudes. The jets manifest between cells of low and high pressure air.  It is plain that the weather-sphere is not co-extensive with the troposphere. At the Antarctic pole it can not be described without reference to the entire atmospheric column.

The simplest and most vigorous pattern of surface pressure generated by this circulation is in the southern hemisphere.

The jets strengthen in winter as ozone partial pressure builds. It builds as low sun angle reduces the photolysis of ozone by short wave radiation allowing ozone to proliferate. Additionally, the uplift of erosive NOx and water vapour from the lower atmosphere is less of a feature of the atmosphere in high latitudes than in low latitudes.

Gordon Dobson observed that Total Column ozone maps surface pressure with more ozone in low than high pressure cells. Paradoxically, low pressure cells form at 60-70° of latitude where the surface air is extremely cold and dense. High pressure cells occur within the mesospheric air over the Antarctic continent and also in low latitudes where the near surface air is warm and of low density. It is the difference in the ozone content of the air in the weather-sphere that determines surface pressure, not the character of the air near the surface.

THE SYNOPTIC SITUATION AT THE SURFACE

It is important to realize that the synoptic situation that we chart as surface pressure is generated where differences in air density are most extreme and the wind is accordingly much stronger than at the surface.

In a tropical cyclone that is driven by release of latent heat the phenomenon is generated at the surface and peters out below 500 hPa. But, if a tropical cyclone travels into the mid latitudes it can find an ally in the cyclones of polar origin. However, most tropical cyclones lose intensity as they exit the warm waters of the tropics, especially if they cross onto the land. The power and extensiveness of a polar cyclone dwarfs that of a tropical cyclone. Whereas the tropical cyclone is generated at and near the surface the polar cyclone is generated aloft.

CLIMATE CHANGE

Climate change is due to a systematic change in the synoptic situation due to change in the ozone content of the weather-sphere. It manifests as shifts in atmospheric mass, a change in the origin of the wind and associated changes in cloud cover. Change manifests most obviously as volatility in surface temperature in January (the Arctic winter) and July (the Antarctic winter). The Antarctic drives the long swell of change with an interval of perhaps 100 years, but only in the context of recent experience, while the Arctic delivers the surface chop over the bulk of the planet northwards of 30° south latitude.

Because climate change manifests quite differently in each hemisphere and is most severe in  the winter season a global temperature statistic averaged across the year, like any average, but much worse in this case, conceals the dynamic behind the  change in surface temperature. The average global temperature  can not reflect the dynamic that is responsible for climate change. To see that dynamic in its full majesty we need to look at the atmosphere in high latitudes in the winter season and in particular, the atmosphere over the Antarctic continent.

 

 

 

20 THE DISTRIBUTION OF ATMOSPHERIC MASS CHANGES IN A SYSTEMATIC FASHION OVER TIME

The long view of change in surface pressure (due to a  redistribution of atmospheric mass) can be derived only from the reanalysis record located here and reproduced below. We look at change by the decade.

Arctic pressure

In the Arctic surface pressure peaks in March, April and May with a secondary peak in October-November due to ozone heating in the southern hemisphere. The fact that the Arctic peak occurs in March rather than in December-January relates to the presence of the Eurasian land mass where very cold conditions attract atmospheric mass in December and January. By March, the  land mass warms slightly allowing a shift of atmospheric mass to the now relatively colder Arctic. However, surface pressure is most variable in January and February and this is when northern hemisphere surface temperature is most variable. I explore the nature of surface temperature variability here.

SLP Antarctic

Above we see that, at the heart of the Antarctic continent, surface pressure peaks in mid winter. Winter surface pressure has declined by about 10 hPa over the period of record reflecting a an increase in the ozone content of the air that drives enhanced polar cyclone activity. The consequence is a gradual shift of atmospheric mass to other parts of the globe and in particular to the mid latitudes of the southern hemisphere where surface pressure has risen in direct response.

The westerly winds have strengthened over time as surface pressure falls in high latitudes and rises in mid latitudes.

Due to the increase in the strength of the westerly winds there has been a shift to higher latitudes of the band of cloud that is associated with frontal activity, consequent cooling in high southern latitudes in spring and early summer, an increase in Antarctic ice mass in winter and spring and change in rainfall patterns in the mid latitudes. West coast Mediterranean type climates that rely on winter rainfall have become more arid. However the increase in the carbon dioxide content of the atmosphere enables plants to thrive on less water and vegetative mass has actually increased despite the decline in rainfall as reported here and here. In some parts of Australia rainfall has increased.

SLP 60-70°S

On the margins of the Antarctic continent where the atmosphere is relatively rich in ozone, not so much in relation to the very high levels of ozone in the northern hemisphere but certainly by comparison with the air over the Antarctic continent, there is a marked trough in surface pressure in October when ozone partial pressure is at its seasonal maximum.

At 60-70° south surface pressure has declined by 10 hPa over the period of record. The secondary peak in January is due to ozone heating in the northern hemisphere.

As the atmosphere moves away from high latitudes there is an increase in atmospheric pressure in mid and low latitudes. This is accompanied by an increase in the temperature of tropical waters between 20° north and 20°south latitudes as seen in the diagram below. In assessing this relationship we should not forget that volcanic eruptions can throw dust into the stratosphere increasing the Earth’s albedo. Secondly, the oceans absorb energy and give it up slowly so that surface pressure leads as temperature increases and leads again in the decline phase.

The rate of transfer of energy by the atmosphere from low to high latitudes increases as the pressure differential between the equator and the poles increases.

The system gains energy as surface pressure increases via a reduction in albedo in the mid latitudes as described here.

The decline in surface temperature in the tropics after 1998, as surface pressure falls away suggests that the system does in fact gain and lose energy according to change in albedo that is causally related to the surface pressure dynamic.

 

SLP and SST

TEMPERATURE DYNAMICS 10hPa T Jan and Jul

In high latitudes the wide swing in the temperature of the air between summer and winter reflects the influence of the vortex of mesospheric air with substantially increased inflows in Antarctica, much more so than in the Arctic. This is the dominant influence on the ozone content and the temperature of the Antarctic stratosphere and indeed the ozone content of the southern stratosphere.

CHANGE IN THE TEMPERATURE OF THE ANTARCTIC STRATOSPHERE AS OZONE HAS PROLIFERATED

Temperature

The change in the temperature of the stratosphere over Antarctica since 1948 reflects a change in the partial pressure of ozone in the air necessarily involving a change in the distribution of ozone  at various pressure levels. Since ozone heats the air, it reduces its density and local contrasts in density result in ascent of the low density air, albeit mixed with air from the troposphere and from the mesosphere. The change in the mobility of the air changes the vertical distribution of ozone in the stratosphere. It is natural that the temperature of the air increases to a greater extent at the more elevated pressure levels because this is where ozone accumulates as a result of the process of uplift.

The explanation for ozone volatility given here is very different to the Brewer Dobson narrative that sees ozone being transported from the tropics to accumulate in high latitudes. In fact the circulation is in the reverse direction with whole of atmosphere ascent in high latitudes and descent in the mid latitudes.

The protective mechanism that allows the increase in ozone partial pressure in high latitudes in winter is the reduced incidence of destructive short wave radiation due to the longer atmospheric path as the sun sinks towards the horizon, disappearing entirely during the polar night. A secondary advantage that accrues in the winter hemisphere resides in the reduced uplift of NOx and water vapour from the lower atmosphere outside tropical latitudes.

The ozone hole in spring is a product of convection that brings destructive NOx into the lower stratosphere over the Antarctic continent where it is trapped by the still persisting descent of mesospheric air until November. The hole is not new. It was first encountered in 1956 when a Dobson Spectrometer was taken to the British base at Halley Bay in Antarctica but it was smaller at that time. Its enhancement is due to enhanced convection. Bear in mind the negative correlation between ozone partial pressure outside the ‘hole’ and inside the ‘hole’ indicating that the hole is a natural feature of the circulation rather than a product of ‘new chemistry’ that is a threat to the presence of ozone throughout the stratosphere. This dynamic and the very different situation in the Arctic will be covered with rigour in later chapters.

Below we see that the temperature of the air at 10 hPa vacillates most in October, the month when the ozone hole manifests in the lower stratosphere. This is also the month when surface pressure descends to its annual minimum at 60-70° south latitude due to the contrast in ozone partial pressure on either side of the chain of polar cyclones that is generated as a result of the density differential. The increase in the temperature of the polar cap in October represents ozone enhancement over time.  With enhanced partial pressure of ozone aloft  there will be a commensurate tendency for descent in the mid latitudes in October/November that is very much part of the ENSO dynamic. The trough in surface pressure at 60-70° south in October adds atmospheric mass to the mid latitudes expanding the area occupied by relatively cloud free high pressure cells. Together these influences add an El Nino bias to the climate system.

This increase in atmospheric ozone in springtime and lack of depletion at any other time of the year flies in the face  of the many ‘ozone at risk’ narratives that have been foisted on an unsuspecting and compliant public by attention seeking ‘scientists’ over the years.

cHANGE IN TEMP AT 10HpA BY MONTH

The diagram below records the degree of variability in 10 hPa temperature by latitude in the southern hemisphere over the period since 1948. The data represents the difference between the coolest and warmest month within the period.It is plain that extreme variability is associated with the months when the Antarctic ozone hole develops in the period from June through to December.

Variability in 10hPa temp by latitude

CHANGED TEMPERATURE PROFILE IN THE MID LATITUDES OF THE SOUTHERN HEMISPHERE INVOLVING A WARMER UPPER TROPOSPHERE

In the mid latitudes the strongest winds manifest between 300 hPa and 50 hPa where cyclones and anticyclones are characterised by marked differences in their ozone content. The increase in the temperature of the air in the mid latitudes at 200 hPa in 1976-78 is  associated with increased surface pressure. The increase in the temperature at 200 hPa relates to the increase in the temperature of the stratosphere generally.

25-35°S

SOURCES OF VARIABILITY IN THE PARTIAL PRESSURE OF OZONE IN THE STRATOSPHERE

1. The rate of influx of ozone deficient mesospheric air over the southern pole is surface pressure dependent and is the primary factor affecting the ozone status of the entire stratosphere. Stronger descent of mesospheric air is primarily a winter phenomenon. Even so, when surface pressure falls away at any time of the year  the mesospheric tongue retracts and the stratosphere is seen to warm as ozone rich air takes its place. The most  energetic changes are associated with the build up in ozone partial pressure from June through to October. Enhanced variability in spring is due to the relationship between ozone content of the atmospheric column and surface pressure. This relationship was well appreciated prior to the 1950’s.  It has been ignored since that time. Ozone acts as a multiplier and an accelerator for surface pressure change originating from external influences.

2. The degree of uplift of NOx from the troposphere  is plainly a potent influence on the ozone content of the stratosphere, especially in low latitudes but also over Antarctica in spring.

3.The manner of the accumulation of ozone in the northern hemisphere, and land/sea geography create a very different dynamic to that in the southern hemisphere. The singularly ozone rich air from the Pacific sector rises in the atmospheric column like a nuclear dust cloud, warming the stratosphere above 30 hPa. Changing pressure dynamics shift the high pressure cells that tend to locate over east Asia in early winter to the Arctic in spring, or alternately to the Scandinavian or the Hudson’s Bay/Greenland sector.  The mesospheric vortex brings cold air to the surface where it streams southwards, particularly in the negative phase of the Arctic Oscillation associated with high surface pressure over the Arctic. In other words, the vortex in the northern hemisphere, unlike the southern hemisphere, has no fixed address. The Jet Stream wanders accordingly.

3. The composition of mesospheric air that is introduced into the winter stratosphere would be expected to vary with solar activity and in particular the partial pressure of the oxygen hungry products of the disassociation of nitrogen.

4. The density of mesospheric air and the upper atmosphere in general varies with the intensity of ionising short wave solar radiation probably affecting the effective rate of interaction between the mesosphere and the stratosphere.

5. The electromagnetic properties of the solar wind are known to impact the distribution of the atmosphere that has its own electric and magnetic field. Ozone is diatomic and will react to electromagnetic stimuli. The atmosphere over the pole is particularly susceptible to movement  when the stratosphere is warm because cosmic rays (charged particles)  penetrate to greater depth at that time. At times when the aurora  light up the heavens under the pressure of the solar wind,  the atmosphere is likely to be very responsive to electromagnetic stimuli.

6. Ionisation due to cosmic rays may be involved in the synthesis of ozone at the poles.

It is apparent that all these factors place conditions on the extent to which the sun drives shifts in atmospheric mass that are comprehensively amplified by the Earth system itself. The chief deterministic condition as to the scope of influence of external influences and the manner of their expression is the susceptibility of the winter hemisphere rather than the summer hemisphere due to ozone enhancement in winter.

A SUMMARY OF THE ORIGINS OF NATURAL CLIMATE CHANGE

Ozone proliferates in the winter hemisphere, probably due to the manner in which the wave lengths that are responsible for the photolysis of ozone are attenuated as the angle of incidence of the sun moves away from the vertical, especially in winter.

The inflow of mesospheric air that depletes ozone varies with surface pressure and is strongest in winter. In winter, stronger contrast in air density drives the generation of polar cyclones and enhances the jet streams.

Polar cyclone activity drives variations in surface atmospheric pressure shifting mass to and from high latitudes towards the mid latitudes and across the hemispheres. This changes the planetary winds and affects cloud cover in zones of high surface pressure via the well observed relationship between surface temperature and geopotential height at 500 hPa.

Hypothetically the solar wind (geomagnetic activity) acts as a trigger for change and establishes an equilibrium about which the climate system oscillates. The climate system itself provides a strong amplifier to change in surface pressure initiated by an external source because any reduction in surface pressure in high latitudes promotes further loss of surface pressure per agency of ozone.

The signature of polar processes affecting the ozone content of the air is written in the surface temperature record. Temperature changes according to the origin of the air in a manner that is well documented as the Arctic and the North Atlantic Oscillations of the northern hemisphere. The El Nino Southern Oscillation is a surface pressure driven  phenomenon waxing and waning with the strength of the Trade Winds. It reflects change in the rate of mixing of very cold waters into the warm waters of the tropical Pacific and the rate at which warm waters from the tropics are driven towards higher latitudes. In other words, the temperature of the surface waters is by and large a result of change in the nature of the water that is present, much like the change that occurs when a person dons new garments. Things seem to change at the surface but underneath there is no change at all. But in the case of the Earth system there is actually a change in cloud cover outside the ENSO monitoring regions as surface pressure falls in high latitudes. It is predominantly in the mid latitudes over the oceans where high pressure cells naturally form that cloud cover is affected. Cloud cover falls away as atmospheric mass shifts to the mid latitudes strengthening the pressure differentials that drive the planetary winds.

The signature of natural climate change, the only game in town, is written into the surface temperature record. It is tied to shifts in atmospheric mass.

19 SHIFTS IN ATMOSPHERIC MASS IN RESPONSE TO POLAR CYCLONE ACTIVITY

Consider the evolution of surface pressure over the last 68 years as documented in the figures below. The change in surface pressure in the high latitudes of the southern hemisphere from one decade to another is due to change in the ozone content of the air as it generates polar cyclone activity of varying intensity in the region of 60-70° south latitude.

July pressure

The activity of polar cyclones gives rise to the planetary low in surface pressure on the margins of Antarctica that we see below.

why

Even in the depths of northern winter when ozone partial pressure is elevated in the northern hemisphere there is no annular ring of low surface pressure in high northern latitudes. Although somewhat  depleted in extent and intensity that annular ring surrounding Antarctica is maintained throughout summer. Notice that in summer the zone of high surface pressure over the Antarctic continent is attenuated by comparison with the annual average. In the northern hemisphere ozone peaks and the associated surface pressure troughs are established over the high latitude Pacific and North Atlantic Oceans.SLP Jan

In January the southern hemisphere warms but to a much smaller extent than the northern hemisphere does in its summer. It’s mostly ocean and the sea readily absorbs energy. Terra firma tends to return energy to the atmosphere on a daily basis, forcing cloud loss and faster heating and that is why the northern hemisphere experiences the greater annual range of temperature as we see below.

NH and SH temp

The northwards transfer of atmospheric mass from the southern hemisphere is much less than the corresponding transfer from north to south in July.  But the strength of polar cyclone activity in the southern hemisphere is such as to fully compensate for the lack of heating of the southern atmosphere in summer driving down surface pressure  over a wide band of latitudes near the pole creating the imbalance in the distribution of atmospheric mass that is indicated below, particularly affecting high southern latitudes. Compare the January data below with the July data above to see the point of this discussion.

January pressure

It is plain that:

  1. The primary driver of the distribution of atmospheric mass globally is solar heating in summer. This shifts mass to the winter hemisphere. Massive heating of the northern hemisphere in northern summer due to the return of energy to the atmosphere as the abundant  land masses of the northern hemisphere heat up the atmosphere, reducing its density  thereby shifting atmospheric mass to the colder southern hemisphere and Antarctica in particular. It is at this time that the temperature of the globe peaks. It’s a full 4°C warmer in July than in January despite the fact that the Earth is further from the sun and solar radiation 6% truncated in the middle of the year. Global cloud cover is lowest in July due to the heating of the atmosphere accounting for the temperature maximum for the globe as a whole.
  2. The secondary and equally powerful driver of the distribution of atmospheric mass is the flux in ozone partial pressure at 60-70° south latitude. Correctly speaking, its the contrast in  air density between air over the Antarctic continent and that over the sea on the margins of the continent that is the main engine of change in the distribution of atmospheric mass because it determines the intensity of Polar Cyclones that form on the margins of Antarctica. These cyclones collectively determine the volume of the atmosphere that resides  between the pole and 50° south latitude.
  3. A tertiary driver, much smaller in its impact on the distribution of atmospheric mass is the flux in the ozone content of the air in and about the Arctic.

Plainly, to understand variability in surface pressure on an inter-annual and longer time scales a focus on atmospheric dynamics in high southern latitudes is required.

Until the advent of satellite technology change in mid to high southern latitudes remained undocumented. Since the publication of reanalysis data in 1996 it is possible to examine what has happened in that part of the global atmosphere.

I am very much aware that the connection between the evolution of the climate globally and the flux in southern hemisphere ozone is ‘new information’ for the reader and will be seen as a ‘crazy theory’, especially by those unfamiliar with atmospheric processes. Let me refer to two items of supporting research, both the product of sophisticated mathematical analysis. This is the classic ‘resort to authority’. I need you to take these matters seriously.

SUPPORTING RESEARCH

Geopotential height changes with the temperature of the air below a pressure level. Low heights indicate cold air below the stated pressure level related to cyclonic conditions and high heights warmer air that is associated with anticyclones. Change in geopotential height represents change in both surface pressure and the origin of the air.  Low heights at 100 hPa are associated with incursions of cold dense air of equatorial origin and high heights incursions of warm, low density air of polar origin. The temperature difference relates to the high tropopause near the equator where the temperature of the air is similar to that in the mesosphere. In contrast, the tropopause is much lower in higher latitudes and the air above it warmed by ozone.

If geopotential height changes systematically over time it signifies change in the character of the air at that particular latitude that entails change of temperature at the surface, in short ‘climate change’. A change in heights is also associated with a change in the source of the air that blows at a particular location. Another way of looking at this change in wind direction is as a change in the way the atmosphere transports energy from the tropics towards higher colder latitudes.

1.EVOLUTIVE LAWS

2.Dunkerton

The second abstract informs us that change in geopotential height originates in the stratosphere in high latitudes. The first abstract informs us that the primary and initiating mode of change is to be found in the Antarctic.

CONCLUSION

To understand variability in surface pressure (and surface temperature) on an inter-annual and longer time scales a focus on atmospheric dynamics in high southern latitudes is required. Specifically we need to monitor the ozone content of the air in the interaction zone between the troposphere and the stratosphere. This is not something that is realised by those who write UNIPCC reports. If it were, we would see much greater interest in the origin of polar cyclones and the ozone content of the air in high latitudes.

 

TABLE OF CONTENTS

There is a body of work that is being presented here, as a blog. Very unusual. It follows a carefully planned logical sequence. You can access all the chapters in this ‘treatise’, in reverse, at: https://reality348.wordpress.com

1 HOW DO WE KNOW THINGS? The virtue of taking in the broadest possible view using our own senses rather than relying on the opinions of others.

2 ASSESSING CLIMATE CHANGE IN YOUR OWN HABITAT Employing reanalysis data and a spreadsheet to take the long view

3 HOW THE EARTH WARMS AND COOLS-NATURALLY. A top down mode of causation is described. This mode of change is capable of explaining variations in both the short and long term in both directions, both warming and cooling. It can explain warming in one place and simultaneous cooling in another. In short it is very well adapted to explain the climate changes that we observe from daily through to centennial time scales ……. and to do so, exclusively and completely.

HERESY AND ORTHODOXY. Some impromptu observations on the inexplicable entanglement of science and politics. On exercising control, suppression of ideas, the nature of propaganda and ‘results oriented behaviour’ that is antagonistic to the interests of humanity in general.

IN THANKS TO STEPHEN WILDE. Some off the cuff comments on the nature of the atmosphere and climate science directed to a man who struggles earnestly in that same field of endeavour.

IT’S SIMPLE SIMON. A brief, impromptu exploration of the nature of the atmosphere.

4 THE GEOGRAPHY OF THE STRATOSPHERE. A re-examination of the nature of the troposphere and the stratosphere via a study of the lapse rate of temperature with elevation as it varies with latitude. If there is a problem in climate science it is in failing to appreciate that the zone of interaction between the stratosphere and the troposphere varies with latitude, descending strongly at high latitudes and is extensive, almost as thick as the troposphere proper. This zone of interaction involves marked differences in air density in the horizontal plane giving rise to strong winds, much stronger than at the surface. This is where air pressure and the ‘synoptic situation’ is determined. The notion of a ‘tropopause’ that marks a boundary between the ‘stratosphere’ and a ‘stratosphere’ that ‘exists at a particular elevation’ is profoundly, and dismayingly misleading.

5 THE ENIGMA OF THE COLD CORE POLAR CYCLONE. A cyclone cannot come into existence in the absence of a warm low density core. In short the polar cyclone is cold below and warm above. Ozone kick starts and then accelerates the circulation of the air in a fashion that is more vigorous than is possible anywhere else on the globe. An investigation of the agent that is responsible for natural climate change on all time scales……arguably the only form of climate change that is consistent with the surface temperature record.

6 THE POVERTY OF CLIMATOLOGY. There is a palpable disconnect between observation and theory. Surface temperature is linked to geopotential height increases that are common from the surface to the 200hPa level in turn linked to change in the ozone content of the air…….as yet unrealized in academic and meteorological circles. Does this represent simply a failure to think things through, or something more sinister? The signature of ozone variability is date stamped into the tropical sea surface temperature record.

7 TEMPERATURE EVOLVES DIFFERENTLY ACCORDING TO LATITUDE. A brief survey that establishes the diversity that exists in the nature of the way temperature changes at different latitudes. On the face it, completely inconsistent with greenhouse theory.

8 VOLATILITY IN TEMPERATURE. In George Bernard Shaw’s play ‘Pygmalion’ that gave rise to the Lerner and Loewe musical ‘My Fair Lady’, Henry Higgins declares that he can tell where a person comes from according to the accent in their speech. Equally, it is possible to detect the origin of temperature change, natural or otherwise, via a close study of the evolution of temperature over time. This is a critical chapter. It identifies the signature of the mode of natural climate change that is written into the temperature record. It points to origin and causation. Unfortunately, nobody  actually looks at the record to discover it.

9 MANKIND IN A CLOUD OF CONFUSION Coming to grips with the true nature of the atmosphere rather than the fairyland version promoted by IPCC climate science.

THE ARCTIC STRATOSPHERE SO COLD TODAY. An impromptu investigation of the forces active in the Arctic stratosphere.

10 MANKIND ENCOUNTERS THE STRATOSPHERE The evolution of the planetary winds and temperature at the surface of the Earth is intimately associated with flux in surface pressure wrought by ozone heating in high latitudes.

11 POPULATION, SCARCITY AND THE ORGANIZATION OF SOCIETY. What is the most desirable temperature regime for humanity? What would we prefer?

12 VARIATION IN ENERGY INPUT DUE TO CLOUD COVER. An investigation of the relationship between cloud cover and surface temperature

13 THE PROCESSES BEHIND FLUX IN CLOUD COVER. Change in cloud cover is manifestly a major mode of natural climate variation. This is basic stuff. Here is where the investigation should begin.

14 ORGANIC CLIMATE CHANGE. Focus on natural processes that account for surface temperature change. Heating of the vast land masses of the northern hemisphere in northern summer reduces global cloud cover and as a result the temperature of the Earth peaks in July when the Earth is furthest from the sun. In July solar radiation is 6% weaker than in January. In January the sun is overhead the most extensive stretch of the global oceans, the south Pacific, the Indian, the Atlantic and the enormous Southern Ocean. At this time atmospheric albedo, via cloud cover, peaks. This has not always been the case and nor will it be the case in future.

15 SCIENCE VERSUS PROPAGANDA. If we want to understand the climate system we need to be concerned with both the input and the output side of the energy flows. The singular focus on the output side of the energy equation and the constant promotion of ‘greenhouse theory’ is the result of uni-dimensional thinking that is realms away from the real world. This does not represent rational problem solving behaviour. Some remarks on greenhouse theory and the inappropriate use of a single statistic to monitor a global average temperature.

16 ON BEING RELEVANT AND LOGICAL. When one looks at climate change by latitude there is very marked diversity in the warming/cooling according to the time of year. Here we look at climate change by the decade at different latitudes to escape the gyrations associated with short term oscillations. The interest in this chapter is to ascertain if there is a generalized warming that is like a groundswell, underpinning the whole. That is what would be expected under the greenhouse scenario. The upshot: If it’s there, it’s either insignificant or completely overwhelmed by other influences.

17 WHY IS THE STRATOSPHERE WARM This is a question of fundamental importance. Mainstream climate science says it’s due to the interception of short wave solar radiation. But this cannot explain the warming of ozone rich air in the polar atmosphere during the polar night when contrasting atmospheric density produces the most intense response in terms of wind strength. It can’t explain why the air above Antarctica is warmer than the icy surface below. It can’t explain the strengthened jet stream in winter. It’s inconsistent with the way that the stratosphere drives the generation of polar cyclones and produces the greatest fluctuations in surface temperature across the surface of the globe in the depth of winter.

18 THE OZONE PULSE SURFACE PRESSURE AND WIND Traces the flux of ozone partial pressure by latitude across the annual cycle as it depends upon the uplift of NOx and water from the troposphere and the descent of ozone deficient air from the mesosphere. These inflows determine the ozone content and temperature of the stratosphere against a relatively stable background of short wave ionizing radiation responsible for photolysis and the creation of ozone. Change in surface pressure across the globe results via the variation in the intensity of polar cyclones in the winter hemisphere. These cyclones owe their warm cores to ozone. A broad interactive zone between 8 and 15 km of altitude exhibits extreme variations in air density giving rise to Jet Streams. Meteorologists trace the development of the weather that is so generated at the 250hPa pressure level. Identifies the origin of the Antarctic Ozone Hole.

19 SHIFTS IN ATMOSPHERIC MASS. Describes the origin of change in the planetary winds and cloud cover. Looks at the historical evolution of the distribution of atmospheric mass by the decade. Identifies the source of natural climate change as shifts in atmospheric mass consequent upon of change in the ozone content of the Antarctic stratosphere. Meshes nicely with recent observations as the the nature of the dominant modes of inter-annual climate variation that are called ‘annular modes’ and observations of where climate change is initiated….Antarctica.