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C $Header: /u/gcmpack/MITgcm/pkg/exf/exf_mapfields.F,v 1.27 2013/04/04 16:30:50 jmc Exp $ |
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C $Name: $ |
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|
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#include "EXF_OPTIONS.h" |
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|
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CBOP 0 |
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C !ROUTINE: EXF_MAPFIELDS |
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|
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C !INTERFACE: |
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SUBROUTINE EXF_MAPFIELDS( myTime, myIter, myThid ) |
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|
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C !DESCRIPTION: |
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C ================================================================== |
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C SUBROUTINE EXF_MAPFIELDS |
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C ================================================================== |
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C |
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C o Map external forcing fields (ustress, vstress, hflux, sflux, |
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C swflux, apressure, climsss, climsst, etc.) onto ocean model |
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C arrays (fu, fv, Qnet, EmPmR, Qsw, pLoad, SSS, SST, etc.). |
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C This routine is included to separate the ocean state estimation |
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C tool as much as possible from the ocean model. Unit and sign |
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C conventions can be customized using variables exf_outscal_*, |
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C which are set in exf_readparms.F. See the header files |
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C EXF_FIELDS.h and FFIELDS.h for definitions of the various input |
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C and output fields and for default unit and sign convetions. |
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C |
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C started: Christian Eckert eckert@mit.edu 09-Aug-1999 |
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C |
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C changed: Christian Eckert eckert@mit.edu 11-Jan-2000 |
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C - Restructured the code in order to create a package |
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C for the MITgcmUV. |
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C |
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C Christian Eckert eckert@mit.edu 12-Feb-2000 |
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C - Changed Routine names (package prefix: exf_) |
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C |
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C Patrick Heimbach, heimbach@mit.edu 06-May-2000 |
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C - added and changed CPP flag structure for |
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C ALLOW_BULKFORMULAE, ALLOW_ATM_TEMP |
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C |
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C Patrick Heimbach, heimbach@mit.edu 23-May-2000 |
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C - sign change of ustress/vstress incorporated into |
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C scaling factors exf_outscal_ust, exf_outscal_vst |
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C |
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C mods for pkg/seaice: menemenlis@jpl.nasa.gov 20-Dec-2002 |
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C |
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C ================================================================== |
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C SUBROUTINE EXF_MAPFIELDS |
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C ================================================================== |
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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 variables == |
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#include "EEPARAMS.h" |
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#include "SIZE.h" |
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#include "PARAMS.h" |
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#include "FFIELDS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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|
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#include "EXF_PARAM.h" |
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#include "EXF_CONSTANTS.h" |
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#include "EXF_FIELDS.h" |
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#ifdef ALLOW_AUTODIFF_TAMC |
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# include "tamc.h" |
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# include "tamc_keys.h" |
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#endif |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C myTime :: Current time in simulation |
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C myIter :: Current iteration number |
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C myThid :: my Thread Id number |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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|
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C !LOCAL VARIABLES: |
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INTEGER bi,bj |
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INTEGER i,j,ks |
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INTEGER imin, imax |
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INTEGER jmin, jmax |
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PARAMETER ( imin = 1-OLx , imax = sNx+OLx ) |
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PARAMETER ( jmin = 1-OLy , jmax = sNy+OLy ) |
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CEOP |
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|
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C-- set surface level index: |
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ks = 1 |
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|
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DO bj = myByLo(myThid),myByHi(myThid) |
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DO bi = myBxLo(myThid),myBxHi(myThid) |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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act1 = bi - myBxLo(myThid) |
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max1 = myBxHi(myThid) - myBxLo(myThid) + 1 |
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act2 = bj - myByLo(myThid) |
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max2 = myByHi(myThid) - myByLo(myThid) + 1 |
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act3 = myThid - 1 |
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max3 = nTx*nTy |
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act4 = ikey_dynamics - 1 |
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ikey = (act1 + 1) + act2*max1 |
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& + act3*max1*max2 |
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& + act4*max1*max2*max3 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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|
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C Heat flux. |
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DO j = jmin,jmax |
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DO i = imin,imax |
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Qnet(i,j,bi,bj) = exf_outscal_hflux*hflux(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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IF ( hfluxfile .EQ. ' ' ) THEN |
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DO j = jmin,jmax |
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DO i = imin,imax |
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Qnet(i,j,bi,bj) = Qnet(i,j,bi,bj) - |
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& exf_outscal_hflux * ( hflux_exfremo_intercept + |
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& hflux_exfremo_slope*(myTime-startTime) ) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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C Salt flux. |
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DO j = jmin,jmax |
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DO i = imin,imax |
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EmPmR(i,j,bi,bj)= exf_outscal_sflux*sflux(i,j,bi,bj) |
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& *rhoConstFresh |
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ENDDO |
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ENDDO |
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IF ( sfluxfile .EQ. ' ' ) THEN |
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DO j = jmin,jmax |
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DO i = imin,imax |
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EmPmR(i,j,bi,bj) = EmPmR(i,j,bi,bj) - rhoConstFresh* |
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& exf_outscal_sflux * ( sflux_exfremo_intercept + |
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& sflux_exfremo_slope*(myTime-startTime) ) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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#ifdef ALLOW_ATM_TEMP |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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IF ( temp_EvPrRn .NE. UNSET_RL ) THEN |
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C-- Account for energy content of Precip + RunOff & Evap. Assumes: |
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C 1) Rain has same temp as Air |
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C 2) Snow has no heat capacity (consistent with seaice & thsice pkgs) |
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C 3) No distinction between sea-water Cp and fresh-water Cp |
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C 4) By default, RunOff comes at the temp of surface water (with same Cp); |
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C ifdef ALLOW_RUNOFTEMP, RunOff temp can be specified in runoftempfile. |
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C 5) Evap is released to the Atmos @ surf-temp (=SST); should be using |
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C the water-vapor heat capacity here and consistently in Bulk-Formulae; |
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C Could also be put directly into Latent Heat flux. |
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IF ( snowPrecipFile .NE. ' ' ) THEN |
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C-- Melt snow (if provided) into the ocean and account for rain-temp |
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DO j = 1, sNy |
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DO i = 1, sNx |
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Qnet(i,j,bi,bj) = Qnet(i,j,bi,bj) |
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& + flami*snowPrecip(i,j,bi,bj)*rhoConstFresh |
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& - HeatCapacity_Cp |
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& *( atemp(i,j,bi,bj) - cen2kel - temp_EvPrRn ) |
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& *( precip(i,j,bi,bj)- snowPrecip(i,j,bi,bj) ) |
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& *rhoConstFresh |
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ENDDO |
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ENDDO |
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ELSE |
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C-- Make snow (according to Air Temp) and melt it in the ocean |
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C note: here we just use the same criteria as over seaice but would be |
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C better to consider a higher altitude air temp, e.g., 850.mb |
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DO j = 1, sNy |
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DO i = 1, sNx |
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IF ( atemp(i,j,bi,bj).LT.cen2kel ) THEN |
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Qnet(i,j,bi,bj) = Qnet(i,j,bi,bj) |
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& + flami*precip(i,j,bi,bj)*rhoConstFresh |
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ELSE |
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C-- Account for rain-temp |
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Qnet(i,j,bi,bj) = Qnet(i,j,bi,bj) |
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& - HeatCapacity_Cp |
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& *( atemp(i,j,bi,bj) - cen2kel - temp_EvPrRn ) |
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& *precip(i,j,bi,bj)*rhoConstFresh |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDIF |
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C-- Account for energy content of Evap: |
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DO j = 1, sNy |
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DO i = 1, sNx |
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Qnet(i,j,bi,bj) = Qnet(i,j,bi,bj) |
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& + HeatCapacity_Cp |
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& *( theta(i,j,ks,bi,bj) - temp_EvPrRn ) |
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& *evap(i,j,bi,bj)*rhoConstFresh |
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Qnet(i,j,bi,bj) = Qnet(i,j,bi,bj)*maskC(i,j,ks,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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# ifdef ALLOW_RUNOFF |
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C-- Account for energy content of RunOff: |
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# ifdef ALLOW_RUNOFTEMP |
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DO j = 1, sNy |
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DO i = 1, sNx |
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Qnet(i,j,bi,bj) = Qnet(i,j,bi,bj) |
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& - HeatCapacity_Cp |
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& *( theta(i,j,ks,bi,bj) - runoftemp(i,j,bi,bj) ) |
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& *runoff(i,j,bi,bj)*rhoConstFresh |
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ENDDO |
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ENDDO |
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# else /* ifndef ALLOW_RUNOFTEMP */ |
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IF ( temp_EvPrRn .NE. UNSET_RL ) THEN |
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DO j = 1, sNy |
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DO i = 1, sNx |
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Qnet(i,j,bi,bj) = Qnet(i,j,bi,bj) |
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& - HeatCapacity_Cp |
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& *( theta(i,j,ks,bi,bj) - temp_EvPrRn ) |
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& *runoff(i,j,bi,bj)*rhoConstFresh |
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ENDDO |
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ENDDO |
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ENDIF |
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# endif /* ALLOW_RUNOFTEMP */ |
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# endif /* ALLOW_RUNOFF */ |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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#endif /* ALLOW_ATM_TEMP */ |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE ustress(:,:,bi,bj) = comlev1_bibj, key=ikey, byte=isbyte |
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#endif |
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DO j = jmin,jmax |
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DO i = imin,imax |
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C Zonal wind stress. |
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IF (ustress(i,j,bi,bj).GT.windstressmax) THEN |
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ustress(i,j,bi,bj)=windstressmax |
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ENDIF |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE ustress(:,:,bi,bj) = comlev1_bibj, key=ikey, byte=isbyte |
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#endif |
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DO j = jmin,jmax |
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DO i = imin,imax |
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IF (ustress(i,j,bi,bj).LT.-windstressmax) THEN |
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ustress(i,j,bi,bj)=-windstressmax |
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ENDIF |
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ENDDO |
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ENDDO |
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IF ( stressIsOnCgrid ) THEN |
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DO j = jmin,jmax |
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DO i = imin+1,imax |
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fu(i,j,bi,bj) = exf_outscal_ustress*ustress(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ELSE |
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DO j = jmin,jmax |
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DO i = imin+1,imax |
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C Shift wind stresses calculated at Grid-center to W/S points |
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fu(i,j,bi,bj) = exf_outscal_ustress* |
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& (ustress(i,j,bi,bj)+ustress(i-1,j,bi,bj)) |
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& *exf_half*maskW(i,j,ks,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE vstress(:,:,bi,bj) = comlev1_bibj, key=ikey, byte=isbyte |
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#endif |
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DO j = jmin,jmax |
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DO i = imin,imax |
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C Meridional wind stress. |
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IF (vstress(i,j,bi,bj).GT.windstressmax) THEN |
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vstress(i,j,bi,bj)=windstressmax |
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ENDIF |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE vstress(:,:,bi,bj) = comlev1_bibj, key=ikey, byte=isbyte |
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#endif |
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DO j = jmin,jmax |
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DO i = imin,imax |
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IF (vstress(i,j,bi,bj).LT.-windstressmax) THEN |
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vstress(i,j,bi,bj)=-windstressmax |
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ENDIF |
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ENDDO |
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ENDDO |
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IF ( stressIsOnCgrid ) THEN |
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DO j = jmin+1,jmax |
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DO i = imin,imax |
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fv(i,j,bi,bj) = exf_outscal_vstress*vstress(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ELSE |
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DO j = jmin+1,jmax |
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DO i = imin,imax |
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C Shift wind stresses calculated at C-points to W/S points |
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fv(i,j,bi,bj) = exf_outscal_vstress* |
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& (vstress(i,j,bi,bj)+vstress(i,j-1,bi,bj)) |
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& *exf_half*maskS(i,j,ks,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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#if defined(ALLOW_ATM_TEMP) || defined(SHORTWAVE_HEATING) |
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C Short wave radiative flux. |
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DO j = jmin,jmax |
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DO i = imin,imax |
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Qsw(i,j,bi,bj) = exf_outscal_swflux*swflux(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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#endif |
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|
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#ifdef ALLOW_CLIMSST_RELAXATION |
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DO j = jmin,jmax |
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DO i = imin,imax |
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SST(i,j,bi,bj) = exf_outscal_sst*climsst(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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#endif |
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|
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#ifdef ALLOW_CLIMSSS_RELAXATION |
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DO j = jmin,jmax |
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DO i = imin,imax |
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SSS(i,j,bi,bj) = exf_outscal_sss*climsss(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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#endif |
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|
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#ifdef ATMOSPHERIC_LOADING |
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DO j = jmin,jmax |
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DO i = imin,imax |
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pLoad(i,j,bi,bj)=exf_outscal_apressure*apressure(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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#endif |
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|
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#ifdef EXF_ALLOW_SEAICE_RELAX |
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DO j = jmin,jmax |
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DO i = imin,imax |
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obsSIce(i,j,bi,bj) = |
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& exf_outscal_areamask*areamask(i,j,bi,bj) |
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obsSIce(I,J,bi,bj) = |
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& MIN(MAX(obsSIce(I,J,bi,bj), 0.d0 ), 1.d0) |
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ENDDO |
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ENDDO |
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#endif |
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|
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ENDDO |
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ENDDO |
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|
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C-- Update the tile edges. |
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_EXCH_XY_RS( Qnet, myThid ) |
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_EXCH_XY_RS( EmPmR, myThid ) |
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CALL EXCH_UV_XY_RS(fu, fv, .TRUE., myThid) |
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c#if defined(ALLOW_ATM_TEMP) || defined(SHORTWAVE_HEATING) |
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#ifdef SHORTWAVE_HEATING |
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C Qsw used in SHORTWAVE_HEATING code & for diagnostics (<- EXCH not needed) |
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_EXCH_XY_RS( Qsw, myThid ) |
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#endif |
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#ifdef ALLOW_CLIMSST_RELAXATION |
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_EXCH_XY_RS( SST, myThid ) |
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#endif |
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#ifdef ALLOW_CLIMSSS_RELAXATION |
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_EXCH_XY_RS( SSS, myThid ) |
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#endif |
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#ifdef ATMOSPHERIC_LOADING |
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_EXCH_XY_RS( pLoad, myThid ) |
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#endif |
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#ifdef EXF_ALLOW_SEAICE_RELAX |
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_EXCH_XY_RS( obsSIce, myThid ) |
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#endif |
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|
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RETURN |
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END |
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