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heimbach |
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C $Header: /u/gcmpack/MITgcm/model/src/tracers_iigw_correction.F,v 1.1 2006/02/23 21:00:10 jmc Exp $ |
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jmc |
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C $Name: $ |
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#include "CPP_OPTIONS.h" |
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CBOP |
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C !ROUTINE: TRACERS_CORRECTION_IIGW |
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C !INTERFACE: |
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SUBROUTINE TRACERS_IIGW_CORRECTION( |
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I bi, bj, myTime, myIter, myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R TRACERS_IIGW_CORRECTION |
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C | o apply correction term to Tracers due to Implicit |
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C | treatment of Internal Gravity Waves: |
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C- | -DeltaT.(w^{n+1}-w^{n})*d.Tr_{ref}/dz |
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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 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 "DYNVARS.h" |
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#ifdef ALLOW_NONHYDROSTATIC |
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#include "NH_VARS.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 bi,bj :: tile indices |
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C myTime :: current time in simulation |
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C myIter :: current iteration number in simulation |
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C myThid :: my Thread Id number |
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INTEGER bi,bj |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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#ifdef ALLOW_NONHYDROSTATIC |
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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 kp1 |
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_RL dTr_k, dTrp1 |
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_RL dW_k(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
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_RL dWp1(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
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CEOP |
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C- Initialise dW = w^{n+1} - w^{n} to zero: |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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dWp1(i,j) = 0. _d 0 |
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ENDDO |
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ENDDO |
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C-- Start vertical loop |
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DO k=1,Nr |
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C- Compute dW @ interface k & k+1 |
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kp1 = MIN(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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dW_k(i,j) = dWp1(i,j) |
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dWp1(i,j) = ( wVel(i,j,kp1,bi,bj) |
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& - gW(i,j,kp1,bi,bj) )*maskC(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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C- Add Impl.IGW correction to Pot.Temperature: |
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dTr_k = 0. _d 0 |
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IF ( k.GT.1 ) dTr_k = (tRef(k) - tRef(k-1))*rkSign |
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dTrp1 = (tRef(kp1) - tRef(k))*rkSign |
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IF ( tempAdvection .AND. |
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& (dTr_k.NE.0. _d 0 .OR. dTrp1.NE.0. _d 0) ) THEN |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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theta(i,j,k,bi,bj) = theta(i,j,k,bi,bj) |
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& -dTtracerLev(k)*0.5 _d 0 |
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& *( dTr_k*dW_k(i,j) + dTrp1*dWp1(i,j) ) |
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heimbach |
1.2 |
& *recip_drF(k)*_recip_hFacC(i,j,k,bi,bj) |
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jmc |
1.1 |
ENDDO |
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ENDDO |
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ENDIF |
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C- Add Impl.IGW correction to Salinity/Water vapor: |
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dTr_k = 0. _d 0 |
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IF ( k.GT.1 ) dTr_k = (sRef(k) - sRef(k-1))*rkSign |
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dTrp1 = (sRef(kp1) - sRef(k))*rkSign |
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IF ( saltAdvection .AND. |
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& (dTr_k.NE.0. _d 0 .OR. dTrp1.NE.0. _d 0) ) THEN |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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salt(i,j,k,bi,bj) = salt(i,j,k,bi,bj) |
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& -dTtracerLev(k)*0.5 _d 0 |
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& *( dTr_k*dW_k(i,j) + dTrp1*dWp1(i,j) ) |
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heimbach |
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& *recip_drF(k)*_recip_hFacC(i,j,k,bi,bj) |
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jmc |
1.1 |
ENDDO |
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ENDDO |
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ENDIF |
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C- End of k loop |
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ENDDO |
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#endif /* ALLOW_NONHYDROSTATIC */ |
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RETURN |
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END |
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