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C $Header: /u/gcmpack/MITgcm/pkg/thsice/thsice_main.F,v 1.12 2007/04/04 02:40:42 jmc Exp $ |
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C $Name: $ |
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|
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#include "THSICE_OPTIONS.h" |
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|
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CBOP |
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C !ROUTINE: THSICE_MAIN |
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C !INTERFACE: |
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SUBROUTINE THSICE_MAIN( |
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I myTime, myIter, myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R THSICE_MAIN |
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C | o Therm_SeaIce main routine. |
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C | step forward Thermodynamic_SeaIce variables and modify |
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C | ocean surface forcing accordingly. |
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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 "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "SURFACE.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.h" |
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#include "THSICE_PARAMS.h" |
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#include "THSICE_VARS.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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C-- |
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# include "THSICE_2DYN.h" |
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C-- |
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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 myTime :: Current time in simulation (s) |
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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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CEOP |
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|
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#ifdef ALLOW_THSICE |
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C !LOCAL VARIABLES: |
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C === Local variables === |
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INTEGER i,j |
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INTEGER bi,bj |
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INTEGER iMin, iMax |
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INTEGER jMin, jMax |
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_RL prcAtm(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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c _RL evpAtm(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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c _RL flxAtm(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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c _RL flxSW (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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|
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_RL tauFac |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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IF ( stressReduction.GT. 0. _d 0 ) THEN |
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C- needs new Ice Fraction in halo region to apply wind-stress reduction |
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iMin = 1-OLx |
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iMax = sNx+OLx-1 |
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jMin = 1-OLy |
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jMax = sNy+OLy-1 |
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#ifdef ATMOSPHERIC_LOADING |
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ELSEIF ( useRealFreshWaterFlux .AND. .NOT.useSEAICE ) THEN |
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C- needs sea-ice loading in part of the halo regions for grad.Phi0surf |
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C to be valid at the boundaries ( d/dx 1:sNx+1 ; d/dy 1:sNy+1 ) |
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iMin = 0 |
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iMax = sNx+1 |
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jMin = 0 |
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jMax = sNy+1 |
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#endif /* ATMOSPHERIC_LOADING */ |
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ELSE |
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iMin = 1 |
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iMax = sNx |
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jMin = 1 |
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jMax = sNy |
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ENDIF |
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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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iicekey = (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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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE ocefwfx(:,:,bi,bj) = comlev1_bibj, key=iicekey, byte=isbyte |
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CADJ STORE oceqnet(:,:,bi,bj) = comlev1_bibj, key=iicekey, byte=isbyte |
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CADJ STORE ocesflx(:,:,bi,bj) = comlev1_bibj, key=iicekey, byte=isbyte |
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#endif |
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|
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C-- Mixed layer thickness: take the 1rst layer |
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#ifdef NONLIN_FRSURF |
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IF ( staggerTimeStep .AND. nonlinFreeSurf.GT.0 ) THEN |
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IF ( select_rStar.GT.0 ) THEN |
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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hOceMxL(i,j,bi,bj) = drF(1)*h0FacC(i,j,1,bi,bj) |
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& *rStarFacC(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, iMax |
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IF ( ksurfC(i,j,bi,bj).EQ.1 ) THEN |
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hOceMxL(i,j,bi,bj) = drF(1)*hFac_surfC(i,j,bi,bj) |
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ELSE |
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hOceMxL(i,j,bi,bj) = drF(1)*hFacC(i,j,1,bi,bj) |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDIF |
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ELSE |
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#else /* ndef NONLIN_FRSURF */ |
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IF (.TRUE.) THEN |
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#endif /* NONLIN_FRSURF */ |
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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hOceMxL(i,j,bi,bj) = drF(1)*hFacC(i,j,1,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 uvel (:,:,1,bi,bj) = comlev1_bibj, key=iicekey, byte=isbyte |
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CADJ STORE vvel (:,:,1,bi,bj) = comlev1_bibj, key=iicekey, byte=isbyte |
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#endif |
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|
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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tOceMxL(i,j,bi,bj) = theta(i,j,1,bi,bj) |
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sOceMxL(i,j,bi,bj) = salt (i,j,1,bi,bj) |
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v2ocMxL(i,j,bi,bj) = |
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& ( uvel(i,j,1,bi,bj)*uvel(i,j,1,bi,bj) |
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& + uvel(i+1,j,1,bi,bj)*uvel(i+1,j,1,bi,bj) |
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& + vvel(i,j+1,1,bi,bj)*vvel(i,j+1,1,bi,bj) |
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& + vvel(i,j,1,bi,bj)*vvel(i,j,1,bi,bj) |
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& )*0.5 _d 0 |
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prcAtm(i,j) = 0. |
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icFrwAtm(i,j,bi,bj) = 0. _d 0 |
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icFlxAtm(i,j,bi,bj) = 0. _d 0 |
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icFlxSW (i,j,bi,bj) = 0. _d 0 |
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snowPrc(i,j,bi,bj) = 0. _d 0 |
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siceAlb(i,j,bi,bj) = 0. _d 0 |
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ENDDO |
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ENDDO |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE iceMask = comlev1, key = iicekey |
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CADJ STORE iceHeight = comlev1, key = iicekey |
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CADJ STORE snowHeight = comlev1, key = iicekey |
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CADJ STORE Tsrf = comlev1, key = iicekey |
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CADJ STORE Qice1 = comlev1, key = iicekey |
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CADJ STORE Qice2 = comlev1, key = iicekey |
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CADJ STORE snowAge = comlev1, key = iicekey |
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CADJ STORE snowPrc = comlev1, key = iicekey |
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|
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CADJ STORE hOceMxL = comlev1, key = iicekey |
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CADJ STORE tOceMxL = comlev1, key = iicekey |
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CADJ STORE sOceMxL = comlev1, key = iicekey |
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CADJ STORE v2ocMxL = comlev1, key = iicekey |
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|
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CADJ STORE empmr = comlev1, key = iicekey |
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CADJ STORE qnet = comlev1, key = iicekey |
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#endif |
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|
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C- do sea-ice advection before getting surface fluxes |
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C Note: will inline this S/R once thSIce in Atmos. set-up is settled |
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IF ( thSIceAdvScheme.GT.0 ) |
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& CALL THSICE_DO_ADVECT( |
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I bi,bj, myTime, myIter, myThid ) |
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|
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#ifdef ALLOW_BULK_FORCE |
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IF ( useBulkforce ) THEN |
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CALL THSICE_GET_PRECIP( |
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I iceMask, |
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O prcAtm, snowPrc(1-OLx,1-OLy,bi,bj), |
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O icFlxSW(1-OLx,1-OLy,bi,bj), |
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I iMin,iMax,jMin,jMax, bi,bj, myThid ) |
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ENDIF |
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#endif |
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#ifdef ALLOW_EXF |
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IF ( useEXF ) THEN |
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CALL THSICE_MAP_EXF( |
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I iceMask, |
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O prcAtm, snowPrc(1-OLx,1-OLy,bi,bj), |
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O icFlxSW(1-OLx,1-OLy,bi,bj), |
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I iMin,iMax,jMin,jMax, bi,bj, myThid ) |
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ENDIF |
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#endif |
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|
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|
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CALL THSICE_STEP_TEMP( |
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I bi, bj, iMin, iMax, jMin, jMax, |
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I myTime, myIter, myThid ) |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE empmr, qnet = comlev1, key = iicekey |
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CADJ STORE iceMask = comlev1, key = iicekey |
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CADJ STORE iceHeight = comlev1, key = iicekey |
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CADJ STORE snowHeight = comlev1, key = iicekey |
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CADJ STORE Tsrf = comlev1, key = iicekey |
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CADJ STORE Qice1 = comlev1, key = iicekey |
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CADJ STORE Qice2 = comlev1, key = iicekey |
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CADJ STORE snowAge = comlev1, key = iicekey |
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#endif |
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|
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CALL THSICE_STEP_FWD( |
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I bi, bj, iMin, iMax, jMin, jMax, |
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I prcAtm, |
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I myTime, myIter, myThid ) |
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|
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CALL THSICE_AVE( |
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I bi,bj, myTime, myIter, myThid ) |
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|
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c ENDDO |
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c ENDDO |
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|
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C-- note: If useSEAICE=.true., the stress is computed in seaice_model, |
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C-- and stressReduction is always set to zero |
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE fu(:,:,bi,bj) = comlev1_bibj, key=iicekey, byte=isbyte |
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CADJ STORE fv(:,:,bi,bj) = comlev1_bibj, key=iicekey, byte=isbyte |
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#endif |
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IF ( stressReduction.GT. 0. _d 0 ) THEN |
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DO j = jMin, jMax |
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DO i = iMin+1,iMax |
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tauFac = stressReduction |
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& *(iceMask(i-1,j,bi,bj)+iceMask(i,j,bi,bj))*0.5 _d 0 |
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fu(i,j,bi,bj) = (1. _d 0 - tauFac)*fu(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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DO j = jMin+1, jMax |
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DO i = iMin, iMax |
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tauFac = stressReduction |
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& *(iceMask(i,j-1,bi,bj)+iceMask(i,j,bi,bj))*0.5 _d 0 |
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fv(i,j,bi,bj) = (1. _d 0 - tauFac)*fv(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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C-- end bi,bj loop |
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ENDDO |
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ENDDO |
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|
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|
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IF ( useSEAICE .OR. thSIceAdvScheme.GT.0 ) THEN |
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C-- Exchange fields that are advected by seaice dynamics |
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_EXCH_XY_R8( iceMask, myThid ) |
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_EXCH_XY_R8( iceHeight, myThid ) |
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_EXCH_XY_R8( snowHeight, myThid ) |
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_EXCH_XY_R8( Qice1, myThid ) |
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_EXCH_XY_R8( Qice2, myThid ) |
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#ifdef ATMOSPHERIC_LOADING |
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IF (useRealFreshWaterFlux) |
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& _EXCH_XY_RS( sIceLoad, myThid ) |
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#endif |
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ENDIF |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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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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