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C $Header: /u/gcmpack/MITgcm/pkg/layers/layers_thermodynamics.F,v 1.4 2015/06/03 13:39:22 rpa Exp $ |
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C $Name: $ |
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|
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#include "LAYERS_OPTIONS.h" |
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C-- File layers_thermodynamics.F: |
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C-- Contents |
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C-- o LAYERS_CALC_RHS |
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|
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CBOP 0 |
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C !ROUTINE: LAYERS_CALC_RHS |
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C !INTERFACE: |
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SUBROUTINE LAYERS_CALC_RHS( |
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I myThid ) |
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|
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE LAYERS_CALC_RHS |
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C | Recalculate the divergence of the RHS terms in T and S eqns. |
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C | Replaces the values of layers_surfflux, layers_df? IN PLACE |
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C | with the corresponding tendencies (same units as GT and GS) |
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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 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 "FFIELDS.h" |
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#include "LAYERS_SIZE.h" |
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#include "LAYERS.h" |
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|
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C !INPUT PARAMETERS: |
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C myThid :: my Thread Id number |
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INTEGER myThid |
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CEOP |
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|
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#ifdef ALLOW_LAYERS |
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#ifdef LAYERS_THERMODYNAMICS |
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C !LOCAL VARIABLES: |
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C bi, bj :: tile indices |
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C i,j :: horizontal indices |
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C k :: vertical index for model grid |
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C kdown :: temporary placeholder |
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C fluxfac :: scaling factor for converting surface flux to tendency |
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C fluxfac :: scaling factor for converting diffusive flux to tendency |
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C downfac :: mask for lower point |
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|
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INTEGER bi, bj |
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INTEGER i,j,k,kdown,iTracer |
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_RL fluxfac(2), downfac, tmpfac |
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c CHARACTER*(MAX_LEN_MBUF) msgBuf |
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_RL minusone |
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PARAMETER (minusOne=-1.) |
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#ifdef SHORTWAVE_HEATING |
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_RL swfracb(2) |
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#endif |
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|
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C -- These factors convert the units of TFLUX and SFLUX diagnostics |
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C -- back to surfaceForcingT and surfaceForcingS units |
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fluxfac(1) = 1.0/(HeatCapacity_Cp*rUnit2mass) |
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fluxfac(2) = 1.0/rUnit2mass |
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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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DO iTracer = 1,2 |
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k = 1 |
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C -- Loop for surface fluxes |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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|
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#ifdef SHORTWAVE_HEATING |
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C -- Have to remove the shortwave from the surface flux because it is added later |
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IF (iTracer.EQ.1) THEN |
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layers_surfflux(i,j,k,iTracer,bi,bj) = |
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& layers_surfflux(i,j,k,iTracer,bi,bj) |
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C -- Sign convention for Qsw means we have to add it to subtract it |
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& +Qsw(i,j,bi,bj) |
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ENDIF |
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#endif /* SHORTWAVE_HEATING */ |
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|
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layers_surfflux(i,j,k,iTracer,bi,bj) = |
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& layers_surfflux(i,j,k,iTracer,bi,bj) |
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& *recip_drF(1)*_recip_hFacC(i,j,1,bi,bj) |
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& *fluxfac(iTracer) |
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ENDDO |
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ENDDO |
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|
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C -- Loop for diffusive fluxes |
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C -- If done correctly, we can overwrite the flux array in place |
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C -- with its own divergence |
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DO k=1,Nr |
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kdown= MIN(k+1,Nr) |
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IF (k.EQ.Nr) THEN |
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downfac = 0. _d 0 |
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ELSE |
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downfac = 1. _d 0 |
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ENDIF |
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DO j=1-OLy,sNy+OLy-1 |
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DO i=1-OLx,sNx+OLx-1 |
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C -- Diffusion |
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tmpfac = -_recip_hFacC(i,j,k,bi,bj)*recip_drF(k) |
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& *recip_rA(i,j,bi,bj)*recip_deepFac2C(k)*recip_rhoFacC(k) |
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layers_dfx(i,j,k,iTracer,bi,bj) = maskInC(i,j,bi,bj) * |
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& tmpfac * ( layers_dfx(i+1,j,k,iTracer,bi,bj) - |
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& layers_dfx(i,j,k,iTracer,bi,bj) ) |
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layers_dfy(i,j,k,iTracer,bi,bj) = maskInC(i,j,bi,bj) * |
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& tmpfac * ( layers_dfy(i,j+1,k,iTracer,bi,bj) - |
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& layers_dfy(i,j,k,iTracer,bi,bj) ) |
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layers_dfr(i,j,k,iTracer,bi,bj) = tmpfac * rkSign * |
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& ( layers_dfr(i,j,kdown,iTracer,bi,bj)*downfac - |
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& layers_dfr(i,j,k,iTracer,bi,bj) ) |
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C -- Advection |
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layers_afx(i,j,k,iTracer,bi,bj) = maskInC(i,j,bi,bj) * |
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& tmpfac * ( layers_afx(i+1,j,k,iTracer,bi,bj) - |
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& layers_afx(i,j,k,iTracer,bi,bj) ) |
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layers_afy(i,j,k,iTracer,bi,bj) = maskInC(i,j,bi,bj) * |
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& tmpfac * ( layers_afy(i,j+1,k,iTracer,bi,bj) - |
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& layers_afy(i,j,k,iTracer,bi,bj) ) |
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layers_afr(i,j,k,iTracer,bi,bj) = tmpfac * rkSign * |
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& ( layers_afr(i,j,kdown,iTracer,bi,bj)*downfac - |
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& layers_afr(i,j,k,iTracer,bi,bj) ) |
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|
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#ifdef SHORTWAVE_HEATING |
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IF (iTracer.EQ.1) THEN |
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swfracb(1)=abs(rF(k)) |
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swfracb(2)=abs(rF(k+1)) |
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CALL SWFRAC( |
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I 2, minusOne, |
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U swfracb, |
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I 1.0, 1, myThid ) |
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C ----- debuggin |
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C IF ((i.EQ.0).AND.(j.EQ.0)) THEN |
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C WRITE(msgBuf,'(2A,I3,A,F6.2,A,F6.2)') |
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C & 'S/R LAYERS_THERMODYNAMICS:', |
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C & ' k=', k, |
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C & ' swfracb(1)=', swfracb(1), |
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C & ' swfracb(2)=', swfracb(2) |
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C CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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C & SQUEEZE_RIGHT, myThid ) |
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C ENDIF |
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C --- kdown == kp1 |
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C kp1 = k+1 |
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IF (k.EQ.Nr) THEN |
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C kp1 = k |
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swfracb(2)=0. _d 0 |
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ENDIF |
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layers_sw(i,j,k,iTracer,bi,bj) = |
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& layers_sw(i,j,k,iTracer,bi,bj) |
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& -Qsw(i,j,bi,bj)*(swfracb(1)*maskC(i,j,k,bi,bj) |
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& -swfracb(2)*maskC(i,j,kdown,bi,bj)) |
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& *fluxfac(1) |
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& *recip_drF(k)*_recip_hFacC(i,j,k,bi,bj) |
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ENDIF |
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#endif /* SHORTWAVE_HEATING */ |
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|
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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C- TFLUX (=total heat flux, match heat-content variations, [W/m2]) |
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C IF ( fluidIsWater .AND. |
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C & DIAGNOSTICS_IS_ON('TFLUX ',myThid) ) THEN |
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C DO bj = myByLo(myThid), myByHi(myThid) |
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C DO bi = myBxLo(myThid), myBxHi(myThid) |
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C DO j = 1,sNy |
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C DO i = 1,sNx |
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C tmp1k(i,j,bi,bj) = |
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C #ifdef SHORTWAVE_HEATING |
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C & -Qsw(i,j,bi,bj)+ |
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C #endif |
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C & (surfaceForcingT(i,j,bi,bj)+surfaceForcingTice(i,j,bi,bj)) |
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C & *HeatCapacity_Cp*rUnit2mass |
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C ENDDO |
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C ENDDO |
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C #ifdef NONLIN_FRSURF |
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C IF ( (nonlinFreeSurf.GT.0 .OR. usingPCoords) |
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C & .AND. useRealFreshWaterFlux ) THEN |
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C DO j=1,sNy |
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C DO i=1,sNx |
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C tmp1k(i,j,bi,bj) = tmp1k(i,j,bi,bj) |
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C & + PmEpR(i,j,bi,bj)*theta(i,j,ks,bi,bj)*HeatCapacity_Cp |
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C ENDDO |
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C ENDDO |
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C ENDIF |
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C #endif /* NONLIN_FRSURF */ |
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C ENDDO |
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C ENDDO |
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C CALL DIAGNOSTICS_FILL( tmp1k,'TFLUX ',0,1,0,1,1,myThid ) |
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C ENDIF |
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C |
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C C- SFLUX (=total salt flux, match salt-content variations [g/m2/s]) |
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C IF ( fluidIsWater .AND. |
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C & DIAGNOSTICS_IS_ON('SFLUX ',myThid) ) THEN |
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C DO bj = myByLo(myThid), myByHi(myThid) |
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C DO bi = myBxLo(myThid), myBxHi(myThid) |
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C DO j = 1,sNy |
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C DO i = 1,sNx |
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C tmp1k(i,j,bi,bj) = |
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C & surfaceForcingS(i,j,bi,bj)*rUnit2mass |
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C ENDDO |
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C ENDDO |
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C |
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C #ifdef NONLIN_FRSURF |
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C IF ( (nonlinFreeSurf.GT.0 .OR. usingPCoords) |
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C & .AND. useRealFreshWaterFlux ) THEN |
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C DO j=1,sNy |
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C DO i=1,sNx |
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C tmp1k(i,j,bi,bj) = tmp1k(i,j,bi,bj) |
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C & + PmEpR(i,j,bi,bj)*salt(i,j,ks,bi,bj) |
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C ENDDO |
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C ENDDO |
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C ENDIF |
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C #endif /* NONLIN_FRSURF */ |
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C |
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C ENDDO |
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C ENDDO |
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C CALL DIAGNOSTICS_FILL( tmp1k,'SFLUX ',0,1,0,1,1,myThid ) |
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C ENDIF |
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|
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C Ocean: Add temperature surface forcing (e.g., heat-flux) in surface level |
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C IF ( kLev .EQ. kSurface ) THEN |
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C DO j=1,sNy |
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C DO i=1,sNx |
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C gT(i,j,kLev,bi,bj)=gT(i,j,kLev,bi,bj) |
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C & +surfaceForcingT(i,j,bi,bj) |
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C & *recip_drF(kLev)*_recip_hFacC(i,j,kLev,bi,bj) |
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C ENDDO |
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C ENDDO |
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C ELSEIF ( kSurface.EQ.-1 ) THEN |
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C DO j=1,sNy |
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C DO i=1,sNx |
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C IF ( kSurfC(i,j,bi,bj).EQ.kLev ) THEN |
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C gT(i,j,kLev,bi,bj)=gT(i,j,kLev,bi,bj) |
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C & +surfaceForcingT(i,j,bi,bj) |
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C & *recip_drF(kLev)*_recip_hFacC(i,j,kLev,bi,bj) |
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C ENDIF |
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C ENDDO |
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C ENDDO |
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C ENDIF |
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|
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C-- Divergence of fluxes |
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C Anelastic: scale vertical fluxes by rhoFac and leave Horizontal fluxes unchanged |
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C for Stevens OBC: keep only vertical diffusive contribution on boundaries |
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C DO j=1-OLy,sNy+OLy-1 |
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C DO i=1-OLx,sNx+OLx-1 |
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C gTracer(i,j,k,bi,bj)=gTracer(i,j,k,bi,bj) |
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C & -_recip_hFacC(i,j,k,bi,bj)*recip_drF(k) |
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C & *recip_rA(i,j,bi,bj)*recip_deepFac2C(k)*recip_rhoFacC(k) |
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C & *( (fZon(i+1,j)-fZon(i,j))*maskInC(i,j,bi,bj) |
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C & +(fMer(i,j+1)-fMer(i,j))*maskInC(i,j,bi,bj) |
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C & +(fVerT(i,j,kDown)-fVerT(i,j,kUp))*rkSign |
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C & -localT(i,j)*( (uTrans(i+1,j)-uTrans(i,j))*advFac |
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C & +(vTrans(i,j+1)-vTrans(i,j))*advFac |
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C & +(rTransKp1(i,j)-rTrans(i,j))*rAdvFac |
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C & )*maskInC(i,j,bi,bj) |
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C & ) |
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C ENDDO |
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C ENDDO |
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|
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#endif /* LAYERS_THERMODYNAMICS */ |
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#endif /* USE_LAYERS */ |
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RETURN |
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END |
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C -- end of S/R LAYERS_CALC_RHS |
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