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C $Header: /u/gcmpack/MITgcm/model/src/external_forcing.F,v 1.68 2014/05/22 22:00:36 atn Exp $ |
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C $Name: $ |
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|
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#include "CPP_OPTIONS.h" |
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|
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C-- File apply_forcing.F: |
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C-- Contents |
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C-- o APPLY_FORCING_U |
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C-- o APPLY_FORCING_V |
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C-- o APPLY_FORCING_T |
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C-- o APPLY_FORCING_S |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP |
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C !ROUTINE: APPLY_FORCING_U |
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C !INTERFACE: |
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SUBROUTINE APPLY_FORCING_U( |
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U gU_arr, |
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I iMin,iMax,jMin,jMax, k, bi, bj, |
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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 APPLY_FORCING_U |
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C | o Contains problem specific forcing for zonal velocity. |
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C *==========================================================* |
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C | Adds terms to gU for forcing by external sources |
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C | e.g. wind stress, bottom friction etc ... |
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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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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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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.h" |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C gU_arr :: the tendency array |
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C iMin,iMax :: Working range of x-index for applying forcing. |
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C jMin,jMax :: Working range of y-index for applying forcing. |
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C k :: Current vertical level index |
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C bi,bj :: Current tile indices |
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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 gU_arr(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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INTEGER iMin, iMax, jMin, jMax |
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INTEGER k, bi, bj |
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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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C i,j :: Loop counters |
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INTEGER i, j |
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CEOP |
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_RL recip_P0g, termP, kV, kF, sigma_b |
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|
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C-- Forcing term |
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kF = 1. _d 0/86400. _d 0 |
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sigma_b = 0.7 _d 0 |
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c DO j=1,sNy |
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C-jmc: Without CD-scheme, this is OK ; but with CD-scheme, needs to cover [0:sNy+1] |
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DO j=0,sNy+1 |
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DO i=1,sNx+1 |
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IF ( maskW(i,j,k,bi,bj).EQ.oneRS ) THEN |
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recip_P0g = MAX(recip_Rcol(i,j,bi,bj),recip_Rcol(i-1,j,bi,bj)) |
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termP = 0.5 _d 0*( MIN( rF(k)*recip_P0g, oneRL ) |
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& +rF(k+1)*recip_P0g ) |
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c termP = 0.5 _d 0*( rF(k) + rF(k+1) )*recip_P0g |
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kV = kF*MAX( zeroRL, (termP-sigma_b)/(1. _d 0-sigma_b) ) |
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gU_arr(i,j) = gU_arr(i,j) |
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& - kV*uVel(i,j,k,bi,bj) |
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ENDIF |
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ENDDO |
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ENDDO |
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|
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RETURN |
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END |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP |
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C !ROUTINE: APPLY_FORCING_V |
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C !INTERFACE: |
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SUBROUTINE APPLY_FORCING_V( |
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U gV_arr, |
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I iMin,iMax,jMin,jMax, k, bi, bj, |
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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 APPLY_FORCING_V |
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C | o Contains problem specific forcing for merid velocity. |
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C *==========================================================* |
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C | Adds terms to gV for forcing by external sources |
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C | e.g. wind stress, bottom friction etc ... |
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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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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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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.h" |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C gV_arr :: the tendency array |
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C iMin,iMax :: Working range of x-index for applying forcing. |
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C jMin,jMax :: Working range of y-index for applying forcing. |
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C k :: Current vertical level index |
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C bi,bj :: Current tile indices |
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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 gV_arr(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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INTEGER iMin, iMax, jMin, jMax |
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INTEGER k, bi, bj |
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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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C i,j :: Loop counters |
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INTEGER i, j |
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CEOP |
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_RL recip_P0g, termP, kV, kF, sigma_b |
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|
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C-- Forcing term |
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kF = 1. _d 0/86400. _d 0 |
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sigma_b = 0.7 _d 0 |
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DO j=1,sNy+1 |
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c DO i=1,sNx |
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C-jmc: Without CD-scheme, this is OK ; but with CD-scheme, needs to cover [0:sNx+1] |
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DO i=0,sNx+1 |
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IF ( maskS(i,j,k,bi,bj).EQ.oneRS ) THEN |
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recip_P0g = MAX(recip_Rcol(i,j,bi,bj),recip_Rcol(i,j-1,bi,bj)) |
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termP = 0.5 _d 0*( MIN( rF(k)*recip_P0g, oneRL ) |
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& +rF(k+1)*recip_P0g ) |
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c termP = 0.5 _d 0*( rF(k) + rF(k+1) )*recip_P0g |
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kV = kF*MAX( zeroRL, (termP-sigma_b)/(1. _d 0-sigma_b) ) |
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gV_arr(i,j) = gV_arr(i,j) |
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& - kV*vVel(i,j,k,bi,bj) |
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ENDIF |
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ENDDO |
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ENDDO |
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|
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RETURN |
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END |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP |
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C !ROUTINE: APPLY_FORCING_T |
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C !INTERFACE: |
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SUBROUTINE APPLY_FORCING_T( |
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U gT_arr, |
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I iMin,iMax,jMin,jMax, k, bi, bj, |
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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 APPLY_FORCING_T |
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C | o Contains problem specific forcing for temperature. |
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C *==========================================================* |
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C | Adds terms to gT for forcing by external sources |
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C | e.g. heat flux, climatalogical relaxation, etc ... |
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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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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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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.h" |
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#include "SURFACE.h" |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C gT_arr :: the tendency array |
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C iMin,iMax :: Working range of x-index for applying forcing. |
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C jMin,jMax :: Working range of y-index for applying forcing. |
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C k :: Current vertical level index |
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C bi,bj :: Current tile indices |
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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 gT_arr(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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INTEGER iMin, iMax, jMin, jMax |
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INTEGER k, bi, bj |
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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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C i,j :: Loop counters |
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C kSurface :: index of surface level |
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INTEGER i, j |
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CEOP |
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_RL thetaLim,kT,ka,ks,sigma_b,term1,term2,thetaEq,termP |
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|
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C-- Forcing term |
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ka = 1. _d 0/(40. _d 0*86400. _d 0) |
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ks = 1. _d 0/(4. _d 0 *86400. _d 0) |
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sigma_b = 0.7 _d 0 |
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DO j=1,sNy |
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DO i=1,sNx |
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term1 = 60. _d 0*(SIN(yC(i,j,bi,bj)*deg2rad)**2) |
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termP = 0.5 _d 0*( rF(k) + rF(k+1) ) |
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term2 = 10. _d 0*LOG(termP/atm_po) |
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& *(COS(yC(i,j,bi,bj)*deg2rad)**2) |
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thetaLim = 200. _d 0/ ((termP/atm_po)**atm_kappa) |
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thetaEq = 315. _d 0-term1-term2 |
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thetaEq = MAX(thetaLim,thetaEq) |
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termP = 0.5 _d 0*( MIN(rF(k),Ro_surf(i,j,bi,bj)) |
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& + rF(k+1) ) |
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kT = ka+(ks-ka) |
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& *MAX( zeroRL, |
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& (termP*recip_Rcol(i,j,bi,bj)-sigma_b)/(1. _d 0-sigma_b) ) |
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& *COS((yC(i,j,bi,bj)*deg2rad))**4 |
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gT_arr(i,j) = gT_arr(i,j) |
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& - kT*( theta(i,j,k,bi,bj)-thetaEq ) |
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& *maskC(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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|
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RETURN |
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END |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP |
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C !ROUTINE: APPLY_FORCING_S |
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C !INTERFACE: |
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SUBROUTINE APPLY_FORCING_S( |
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U gS_arr, |
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I iMin,iMax,jMin,jMax, k, bi, bj, |
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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 APPLY_FORCING_S |
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C | o Contains problem specific forcing for merid velocity. |
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C *==========================================================* |
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C | Adds terms to gS for forcing by external sources |
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C | e.g. fresh-water flux, climatalogical relaxation, etc ... |
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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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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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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.h" |
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#include "SURFACE.h" |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C gS_arr :: the tendency array |
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C iMin,iMax :: Working range of x-index for applying forcing. |
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C jMin,jMax :: Working range of y-index for applying forcing. |
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C k :: Current vertical level index |
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C bi,bj :: Current tile indices |
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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 gS_arr(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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INTEGER iMin, iMax, jMin, jMax |
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INTEGER k, bi, bj |
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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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C i,j :: Loop counters |
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c INTEGER i, j |
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CEOP |
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|
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C-- Forcing term |
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|
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RETURN |
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END |
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