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C $Header: /u/gcmpack/MITgcm/pkg/thsice/thsice_get_precip.F,v 1.3 2013/04/23 16:34:24 jmc Exp $ |
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C $Name: $ |
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|
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#include "THSICE_OPTIONS.h" |
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#ifdef ALLOW_BULK_FORCE |
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# include "BULK_FORCE_OPTIONS.h" |
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#endif |
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#ifdef ALLOW_CHEAPAML |
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# include "CHEAPAML_OPTIONS.h" |
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#endif |
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|
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CBOP |
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C !ROUTINE: THSICE_GET_PRECIP |
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C !INTERFACE: |
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SUBROUTINE THSICE_GET_PRECIP( |
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I iceMsk, locSST, |
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O precip, snowPrc, qPrcRnO, flxSW, |
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I iMin,iMax,jMin,jMax, bi,bj, myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R THSICE_GET_PRECIP |
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C | Interface S/R : get Precip, Snow-precip |
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C | and downward short-wave from pkg BULK_FORCE |
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C | - or - get Precip, Snow-precip from pkg cheapAML |
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C *==========================================================* |
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C \ev |
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|
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C !USES: |
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IMPLICIT NONE |
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|
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C == Global data == |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#ifdef ALLOW_BULK_FORCE |
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# include "BULKF_PARAMS.h" |
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# include "BULKF.h" |
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#elif defined(ALLOW_CHEAPAML) |
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# include "CHEAPAML.h" |
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#endif |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C === Routine arguments === |
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C iceMsk :: sea-ice fraction: no ice=0, grid all ice 1 [] |
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C locSST :: local Sea-Surface Temperature [deg.C] |
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C precip :: Total Precipitation (including run-off) [kg/m2/s] |
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C snowPrc :: Snow Precipitation [kg/m2/s] |
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C qPrcRnO :: Energy content of Precip+RunOff (+=down) [W/m2] |
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C flxSW :: Downward short-wave surface flux (+=down) [W/m2] |
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C iMin,iMax :: range of indices of computation domain |
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C jMin,jMax :: range of indices of computation domain |
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C bi,bj :: current tile indices |
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C myThid :: Thread no. that called this routine. |
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_RL iceMsk (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL locSST (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL precip (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL snowPrc(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL qPrcRnO(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL flxSW (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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INTEGER iMin,iMax |
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INTEGER jMin,jMax |
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INTEGER bi,bj |
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INTEGER myThid |
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CEOP |
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|
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#ifdef ALLOW_THSICE |
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#if defined(ALLOW_BULK_FORCE) || defined(ALLOW_CHEAPAML) |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C === Local variables === |
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C i,j :: current grid point indices |
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INTEGER i,j |
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|
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#ifdef ALLOW_BULK_FORCE |
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IF ( useBulkforce ) THEN |
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|
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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precip(i,j) = ( rain(i,j,bi,bj)+runoff(i,j,bi,bj) )*rhofw |
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flxSW (i,j) = solar(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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|
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c IF ( SnowFile .NE. ' ' ) THEN |
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c ELSE |
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C If specific snow precipitiation is not available, use |
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C precipitation when ever the air temperature is below 0 degC |
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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IF ( iceMsk(i,j,bi,bj).GT.0. _d 0 |
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& .AND. Tair(i,j,bi,bj).LE.Tf0kel ) THEN |
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snowPrc(i,j) = rain(i,j,bi,bj)*rhofw |
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ENDIF |
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ENDDO |
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ENDDO |
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c ENDIF |
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|
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IF ( temp_EvPrRn .NE. UNSET_RL ) THEN |
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C-- Account for energy content of Precip + RunOff : |
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C assume 1) rain has same temp as Air (higher altitude, e.g., 850.mb would |
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C be better); 2) Snow has no heat capacity (+ is counted separately) |
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C 3) no distinction between sea-water Cp and fresh-water Cp |
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C 4) Run-Off comes at the temp of surface water (with same Cp) |
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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qPrcRnO(i,j) = HeatCapacity_Cp*( |
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& ( Tair(i,j,bi,bj) - Tf0kel - temp_EvPrRn ) |
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& *( rain(i,j,bi,bj)*rhofw - snowPrc(i,j) ) |
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& + ( locSST(i,j,bi,bj) - temp_EvPrRn ) |
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& *runoff(i,j,bi,bj)*rhofw ) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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C- end if useBulkforce |
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ENDIF |
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|
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IF ( useCheapAML ) |
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& STOP 'cannot use thsIce and CheapAML with BULK_FORCE compiled' |
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|
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#elif defined(ALLOW_CHEAPAML) |
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IF ( useCheapAML ) THEN |
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|
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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precip(i,j) = cheapPrecip(i,j,bi,bj) |
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c & + runoff(i,j,bi,bj)*rhofw |
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ENDDO |
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ENDDO |
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|
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c IF ( SnowFile .NE. ' ' ) THEN |
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c ELSE |
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C If specific snow precipitiation is not available, use |
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C precipitation when ever the air temperature is below 0 degC |
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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IF ( iceMsk(i,j,bi,bj).GT.0. _d 0 |
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& .AND. Tair(i,j,bi,bj).LT.zeroRL ) THEN |
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snowPrc(i,j) = cheapPrecip(i,j,bi,bj) |
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ENDIF |
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ENDDO |
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ENDDO |
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c ENDIF |
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|
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IF ( temp_EvPrRn .NE. UNSET_RL ) THEN |
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C-- Account for energy content of Precip + RunOff : |
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C assume 1) rain has same temp as Air (higher altitude, e.g., 850.mb would |
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C be better); 2) Snow has no heat capacity (+ is counted separately) |
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C 3) no distinction between sea-water Cp and fresh-water Cp |
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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qPrcRnO(i,j) = HeatCapacity_Cp* |
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& ( Tair(i,j,bi,bj) - temp_EvPrRn ) |
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& *( cheapPrecip(i,j,bi,bj) - snowPrc(i,j) ) |
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c + HeatCapacity_Cp* |
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c & ( locSST(i,j,bi,bj) - temp_EvPrRn ) |
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c & *runoff(i,j,bi,bj)*rhofw |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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C- end if useCheapAML |
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ENDIF |
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#endif /* if ALLOW_BULK_FORCE elif ALLOW_CHEAPAML */ |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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#endif /* ALLOW_BULK_FORCE or ALLOW_CHEAPAML */ |
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#endif /* ALLOW_THSICE */ |
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|
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RETURN |
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END |
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