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jmc |
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C $Header: /u/gcmpack/MITgcm_contrib/PRM/multi_comp_setup/cg/code/set_ddtvars.F,v 1.4 2008/02/25 19:01:55 jmc Exp $ |
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jmc |
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C $Name: $ |
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#include "PACKAGES_CONFIG.h" |
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#ifdef ALLOW_MYPACKAGE |
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# include "MYPACKAGE_OPTIONS.h" |
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#else |
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# include "CPP_OPTIONS.h" |
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#endif |
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CBOP |
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C !ROUTINE: SET_DDTVARS |
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C !INTERFACE: |
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SUBROUTINE SET_DDTVARS( gUVelC, gVVelC, gThetaC, |
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I cnx, cny, cnr, |
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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 SET_DDTVARS |
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C | o Set tendencies to be used as additional forcing |
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C *==========================================================* |
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C *==========================================================* |
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C \ev |
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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 "ORIENTATION.h" |
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#include "EXT_MOM_TEND.h" |
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#ifdef ALLOW_MYPACKAGE |
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# include "MYPACKAGE.h" |
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#endif |
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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 |
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C myIter :: Current iteration number |
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C myThid :: Thread Id number |
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INTEGER cnx, cny, cnr |
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REAL*8 gUVelC( cnx, cny, cnr) |
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REAL*8 gVVelC( cnx, cny, cnr) |
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REAL*8 gThetaC(cnx, cny, cnr) |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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C !FUNCTIONS: |
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LOGICAL DIFFERENT_MULTIPLE |
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EXTERNAL DIFFERENT_MULTIPLE |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C i,j,k :: Loop counters |
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INTEGER i,j,k |
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INTEGER bi,bj |
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C Variables used for I/O |
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CHARACTER*(10) suff |
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C Variables used for smoothing momentum tendencies: |
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_RL viscAhDivDt, viscAhVortDt |
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_RL locDiv (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL locVort(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL locFx (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL locFy (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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CEOP |
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viscAhDivDt = myPa_param1 * deltaTmom |
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viscAhVortDt = myPa_param2 * deltaTmom |
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IF ( cnx .NE. sNx ) THEN |
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STOP 'SET_DTTVARS cnx NE sNx' |
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ENDIF |
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IF ( cny .NE. sNy ) THEN |
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STOP 'SET_DTTVARS cny NE sNy' |
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ENDIF |
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IF ( cnr .NE. Nr ) THEN |
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STOP 'SET_DTTVARS cnr NE Nr' |
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ENDIF |
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DO bj = myByLo(myThid), myByHi(myThid) |
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DO bi = myBxLo(myThid), myBxHi(myThid) |
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C--- Temp. Tendency from CG : just do a copy |
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DO k=1,Nr |
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DO j=1,sNy |
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DO i=1,sNx |
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myPa_TendScal1(i,j,k,bi,bj) = gThetaC(i,j,k) |
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ENDDO |
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ENDDO |
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ENDDO |
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C--- Momentum Tendency from CG |
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C-- 1) rotate to get u,v aline with CG axes |
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DO k=1,Nr |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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ext_gu(i,j,k,bi,bj) = 0. _d 0 |
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ext_gv(i,j,k,bi,bj) = 0. _d 0 |
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ENDDO |
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ENDDO |
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DO j=1,sNy |
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DO i=1,sNx |
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IF ( velDvRMS(i,j,bi,bj).GT.0. _d 0 ) THEN |
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ext_gu(i,j,k,bi,bj) = gUVelC(i,j,k)*cAngleFG(i,j,bi,bj) |
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& - gVVelC(i,j,k)*sAngleFG(i,j,bi,bj) |
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ext_gv(i,j,k,bi,bj) = gVVelC(i,j,k)*cAngleFG(i,j,bi,bj) |
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& + gUVelC(i,j,k)*sAngleFG(i,j,bi,bj) |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDDO |
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C- end bi,bj loops |
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ENDDO |
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ENDDO |
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C-- 2) Fill the overlap : ext_gu & ext_gv are both on A-grid |
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CALL EXCH_UV_AGRID_3D_RL( ext_gu, ext_gv, |
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& .TRUE., Nr, myThid ) |
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DO bj = myByLo(myThid), myByHi(myThid) |
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DO bi = myBxLo(myThid), myBxHi(myThid) |
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DO k=1,Nr |
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C-- 3) average to C-grid |
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DO j=1-OLy,sNy+OLy |
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DO i=2-OLx,sNx+OLx |
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myPa_TendVelU(i,j,k,bi,bj) = maskW(i,j,k,bi,bj) |
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& *( ext_gu(i-1,j,k,bi,bj) |
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& +ext_gu( i ,j,k,bi,bj) )*0.5 _d 0 |
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ENDDO |
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ENDDO |
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DO j=2-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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myPa_TendVelV(i,j,k,bi,bj) = maskS(i,j,k,bi,bj) |
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& *( ext_gv(i,j-1,k,bi,bj) |
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& +ext_gv(i, j ,k,bi,bj) )*0.5 _d 0 |
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ENDDO |
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ENDDO |
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C-- 4) Smooth Momentum tendency : |
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C apply horizontal viscosity (*time-step = viscAhDivDt) on Divergence |
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C tendency and on vorticity tend. (viscosity*time-step = viscAhVortDt) |
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IF ( viscAhDivDt.GT.0. .OR. viscAhVortDt.GT.0. ) THEN |
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C Fluxes |
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DO j=2-OLy,sNy+OLy |
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DO i=2-OLx,sNx+OLx |
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locFx(i,j) = myPa_TendVelU(i,j,k,bi,bj) |
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& *dyG(i,j,bi,bj)*hFacW(i,j,k,bi,bj) |
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locFy(i,j) = myPa_TendVelV(i,j,k,bi,bj) |
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& *dxG(i,j,bi,bj)*hFacS(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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C Divergence |
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DO j=2-OLy,sNy+OLy-1 |
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DO i=2-OLx,sNx+OLx-1 |
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locDiv(i,j) = |
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& ( ( locFx(i+1,j)-locFx(i,j) ) |
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& +( locFy(i,j+1)-locFy(i,j) ) |
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& )*recip_rA(i,j,bi,bj)*recip_hFacC(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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C Vorticity |
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DO j=2-OLy,sNy+OLy |
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DO i=2-OLx,sNx+OLx |
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locVort(i,j) = |
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& ( ( myPa_TendVelV(i,j,k,bi,bj)*dyC(i,j,bi,bj) |
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& -myPa_TendVelV(i-1,j,k,bi,bj)*dyC(i-1,j,bi,bj) ) |
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& -( myPa_TendVelU(i,j,k,bi,bj)*dxC(i,j,bi,bj) |
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& -myPa_TendVelU(i,j-1,k,bi,bj)*dxC(i,j-1,bi,bj) ) |
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& )*recip_rAz(I,J,bi,bj) |
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ENDDO |
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ENDDO |
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C Apply to C-grid tendencies: |
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DO j=3-OLy,sNy+OLy-1 |
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DO i=3-OLx,sNx+OLx-1 |
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myPa_TendVelU(i,j,k,bi,bj) = myPa_TendVelU(i,j,k,bi,bj) |
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& + ( viscAhDivDt * ( locDiv(i,j) - locDiv(i-1,j) ) |
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& * recip_dxC(i,j,bi,bj) |
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& - viscAhVortDt* ( locVort(i,j+1)-locVort(i,j) ) |
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& * recip_dyG(i,j,bi,bj) |
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& )*maskW(i,j,k,bi,bj) |
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myPa_TendVelV(i,j,k,bi,bj) = myPa_TendVelV(i,j,k,bi,bj) |
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& + ( viscAhDivDt * ( locDiv(i,j) - locDiv(i,j-1) ) |
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& * recip_dyC(i,j,bi,bj) |
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& + viscAhVortDt* ( locVort(i+1,j)-locVort(i,j) ) |
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& * recip_dxG(i,j,bi,bj) |
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& )*maskS(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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C- end smoothing & end of k loop |
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ENDIF |
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1.1 |
ENDDO |
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jmc |
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C- end bi,bj loops |
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ENDDO |
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ENDDO |
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C-- Diagnostics |
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jmc |
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#ifdef ALLOW_DIAGNOSTICS |
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IF ( useDiagnostics ) THEN |
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CALL DIAGNOSTICS_FILL ( myPa_TendScal1,'MYPadTdt', |
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& 0, Nr, 0, 1, 1, myThid ) |
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CALL DIAGNOSTICS_FILL ( myPa_TendVelU, 'MYPadUdt', |
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& 0, Nr, 0, 1, 1, myThid ) |
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CALL DIAGNOSTICS_FILL ( myPa_TendVelV, 'MYPadVdt', |
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& 0, Nr, 0, 1, 1, myThid ) |
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C- This is a hack (to avoid changing mypackage_diagnostics_init.F) |
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CALL DIAGNOSTICS_FILL ( ext_gu, 'MYPaStaU', |
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& 0, Nr, 0, 1, 1, myThid ) |
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CALL DIAGNOSTICS_FILL ( ext_gv, 'MYPaStaV', |
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& 0, Nr, 0, 1, 1, myThid ) |
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ENDIF |
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#endif /* ALLOW_DIAGNOSTICS */ |
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jmc |
1.5 |
C-- Write snap-shot output: |
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1.1 |
IF ( DIFFERENT_MULTIPLE(dumpFreq,myTime,deltaTClock) |
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& .OR. dumpInitAndLast.AND.( myTime.EQ.endTime .OR. |
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& myTime.EQ.startTime ) |
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& ) THEN |
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WRITE(suff,'(I10.10)') myIter |
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jmc |
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CALL WRITE_FLD_XYZ_RL( 'ext_gT.', suff, myPa_TendScal1, |
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& myIter, myThid ) |
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CALL WRITE_FLD_XYZ_RL( 'ext_gU.', suff, ext_gu, |
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& myIter, myThid ) |
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CALL WRITE_FLD_XYZ_RL( 'ext_gV.', suff, ext_gv, |
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& myIter, myThid ) |
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ENDIF |
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RETURN |
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END |
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