The files in this section result from the conversion of datasets originating from Kartverket

Source: Kartverket
Format: GeoTIFF converted from GTX
License: Creative Commons Attribution 4.0

Transform local height system NN2000 (EPSG:5941) to ETRS89 ellipsoidal heights (EPSG:4937). The horizontal grid coordinates are referenced to ETRS89.

• no_kv_HREF2018B_NN2000_EUREF89.tif

Source: Kartverket
Format: GeoTIFF converted from GTX
License: Creative Commons Attribution 4.0

Transform local height system NN1954 (EPSG:5776) to ETRS89 ellipsoidal heights (EPSG:4937). The horizontal grid coordinates are referenced to ETRS89.

• no_kv_href2008a.tif

Format: GeoTIFF
License: Creative Commons Attribution 4.0
Source CRS: NKG:ETRF14
Target CRS: EPSG:7922 (ETRF93)

• no_kv_NKGETRF14_EPSG7922_2000.tif

The correction grid is one of the steps in the transformation from EPSG:7789 to the norwegian EPSG:4936 (Extent EPSG:1352). The grid contains x-, y- and z-shifts between NKG:ETRF14 and EPSG:7922 at epoch 2000.0, which are computed based on 7 parameter Helmert smoothed with Least Squares Collocation. Input to the computation is 189 points in the norwegian CORS network referred in NKG:ETRF14 and EPSG:7922.

Source: Kartverket
Format: JSON converted from text files
License: Creative Commons Attribution 4.0

Horizontal triangulation to transform coordinates from ETRS89 (EPSG:4258) to NGO1948 (EPSG:4273), with longitude/latitude order.

• no_kv_ETRS89NO_NGO48_TIN.json

Format: GeoTIFF converted from BIN
Source: Kartverket
License: Creative Commons Attribution 4.0
Source CRS: EPSG:4937 (ETRS89 ellipsoidal heights)
Target CRS: EPSG:9672 (Chart datum Norway heights)

• no_kv_CD_above_Ell_ETRS89_v2023b.tif

Format: GeoTIFF converted from GravSoft BIN
License: Creative Commons Attribution 4.0
Source CRS: EPSG:4937 (ETRS89 ellipsoidal heights)
Target CRS: EPSG:20000 (SVD2006 heights)

The grid transforms from ETRS89 ellipsoidal heights to SVD2006 heights (Svalbard heights). The SVD2006 surface (arcgp-2006-sk) is the Arctic Gravity Project 2006 (arcgp-2006) surface adjusted to two benchmarks tied to the Ny-Ålesund tide gauge (arcgp-2006-sk = arcgp-2006 - 0.8986m). The SVD2006 surface is defined by Mean Sea Level (MSL) at Ny-Ålesund.

• no_kv_arcgp-2006-sk.tif

Format: GeoTIFF converted from GravSoft BIN
License: Creative Commons Attribution 4.0
Source CRS: EPSG:4937 (ETRS89 ellipsoidal heights)
Target CRS: EPSG:10999 (SVD2024 heights)

The grid transforms from ETRS89 ellipsoidal heights to SVD2024 heights (Svalbard heights). Mean Sea Level (MSL) 1995-2014 at Ny-Ålesund and Longyearbyen propagated through the Svalbard_EGG2015_2024 quasi-geoid model.

• no_kv_Svalbard_EUREF89_SVD2024.tif

Format: GeoTIFF converted from GravSoft BIN
License: Creative Commons Attribution 4.0
Source CRS: EPSG:5776 (NN54 height)
Target CRS: EPSG:5941 (NN2000 height)

• no_kv_HREF2018B_NN54_NN2000.tif

Source: Kartverket
Format: GeoTIFF converted from BIN
License: Creative Commons Attribution 4.0
Source CRS: EPSG:10874 (ETRS89 Ellipsoidal height)
Target CRS: EPSG:5941 (NN2000:2025 height)

Transform ETRS89 ellipsoidal heights (EPSG:10874) to local height system NN2000:2025 (EPSG:11394). The horizontal grid coordinates are referenced to ETRS89.

• no_kv_HREF2025A_NN2000_EUREF89.tif