Tasks

UVQUAN is a pointer to a memory location, representing some HSPF register. See also UVNAME

• Data Model
• Parser: ParseTable.csv entry under way, not tested with code yet. See: https://github.com/HARPgroup/HSPsquared/blob/uvquan/HSP2tools/data/ParseTable.csv
• class handler (turns table data into linked and integrated executable runtime)
• Executable Code
• Unit Tests
• Performance Tests
• See also SPEC-ACTIONS - UVQUAN as action value #173
• Questions/concepts:
  • Differences between UVNAME and UVQUAN? Is UVNAME a variable applied/created in all segments, whereas UVQUAN is a single variable created for a specific segment?
  • Cross-domain UVQUAN, i.e., in example below, IF (precx1 > 6.000) THEN, can precx1 which is based on PERLND 1 be used by some other element, like RCHRES 1? (hypothetical to understand full life-cycle)

UCI

• Note: Definitions in HSPF manual "Details of User-defined Variable Quantity line" gives a variable named ADDR, but:
  • This does not appear in the actual UCI. (not in example, or in test UCI from CBP)
  • Instead, it appears to be a meta-column, the "VNAME" + "CSUB1" ("vari" and ""s1" in manual and CBP examples)

UCI Data Structure

UCI Examples

Example from HSPF_v12.2_manual

*** User-Defined Variable Quantity Lines
***                           addr
***                        <------>
*** kwd  varnam optyp  opn  vari  s1 s2 s3 tp multiply  lc ls ac as agfn ***
  <****> <----> <----> <-> <----><-><-><-><-><--------> <><-> <><-> <--> ***
  UVQUAN prec   PERLND   1 PREC             3                 DY  1 SUM

TEST13.UCI

From fortran HSPF base tests:

• Multiple lakes
• https://github.com/respec/FORTRAN/blob/master/test/hspf/standard/Base/TEST13.UCI

Hurricane Isabel

• From CBP Phase 6 model
  • Ultra-large hurricanes had poor peak flow performance, so specl was used to adjust land INFEXP parameter when rainfall over 2 week period exceeded 6.0 inches
  • http://deq1.bse.vt.edu:81/p6/vadeq/tmp/uci/land/ntg/vadeq_2021/ntgH51009.uci

***Iuvquan User-Defined Variable Quantity Line
*** kwd  varnam optyp  opn  vari  s1 s2 s3 tp multiply  lc ls ac as agfn ***
  <****> <----> <----> <-> <----><-><-><-><-><--------> <><-> <><-> <--> ***
  UVQUAN precx1 PERLND   1 PREC             3                 DY 14 SUM

***Action Lines for INFEXP
IF (precx1 >  6.000) THEN
  PERLND  1                            3  INFEXP          =  8.0000000
ELSE
  PERLND  1                            3  INFEXP          =  2.0000000
END IF

hdf5 Data Model

• hdf5 Path: /SPEC_ACTIONS/UVQUAN/table
  • Column Names (see DEF below): UVQNAM, OPTYP, OPTNO, VNAME, CSUB1, CSUB2, CSUB3, ADDR, TYPCOD, UVQMUL, CTCODE1, TSTEP1, CTCODE2, TSTEP2, CTRAN

DEF: Table Definition

• NOT YET COMPLETE: this is from ACTIONS specl: ACTIONS (parser and code) #105

Execution Code

• Fortran version SUBROUTINE PSPACT in 12.2