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jmc |
1.29 |
C $Header: /u/gcmpack/MITgcm/pkg/ptracers/ptracers_integrate.F,v 1.28 2006/02/27 20:45:34 heimbach Exp $ |
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adcroft |
1.2 |
C $Name: $ |
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adcroft |
1.1 |
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#include "PTRACERS_OPTIONS.h" |
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CBOP |
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heimbach |
1.7 |
C !ROUTINE: PTRACERS_INTEGRATE |
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adcroft |
1.1 |
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C !INTERFACE: ========================================================== |
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heimbach |
1.7 |
SUBROUTINE PTRACERS_INTEGRATE( |
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adcroft |
1.1 |
I bi,bj,k, |
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jmc |
1.13 |
I xA,yA,uTrans,vTrans,rTrans, |
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I rTransKp1,maskUp, |
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heimbach |
1.11 |
X rFlx,KappaRtr, |
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adcroft |
1.1 |
I myIter,myTime,myThid ) |
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C !DESCRIPTION: |
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jmc |
1.26 |
C Calculates tendency for passive tracers and integrates forward |
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adcroft |
1.1 |
C in time. |
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C !USES: =============================================================== |
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IMPLICIT NONE |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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adcroft |
1.5 |
#include "PARAMS.h" |
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jmc |
1.13 |
#include "DYNVARS.h" |
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jmc |
1.15 |
#include "PTRACERS_SIZE.h" |
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adcroft |
1.1 |
#include "PTRACERS.h" |
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#include "GAD.h" |
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C !INPUT PARAMETERS: =================================================== |
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C bi,bj :: tile indices |
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C k :: vertical level number |
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C xA :: face area at U points in level k |
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C yA :: face area at V points in level k |
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C uTrans :: zonal transport in level k |
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C vTrans :: meridional transport in level k |
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jmc |
1.13 |
C rTrans :: vertical volume transport at interface k |
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C rTransKp1 :: vertical volume transport at interface k+1 |
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adcroft |
1.1 |
C maskUp :: mask for vertical transport |
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jmc |
1.12 |
C rFlx :: vertical flux |
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jmc |
1.18 |
C KappaRtr :: vertical diffusion of passive tracers, interf k |
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adcroft |
1.1 |
C myIter :: time-step number |
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C myTime :: model time |
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C myThid :: thread number |
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INTEGER bi,bj,k |
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_RS xA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS yA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL uTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL vTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL rTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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jmc |
1.13 |
_RL rTransKp1(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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adcroft |
1.1 |
_RS maskUp (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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jmc |
1.12 |
_RL rFlx(1-OLx:sNx+OLx,1-OLy:sNy+OLy,2,PTRACERS_num) |
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jmc |
1.19 |
_RL KappaRtr(1-Olx:sNx+Olx,1-Oly:sNy+Oly,PTRACERS_num) |
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adcroft |
1.1 |
INTEGER myIter |
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_RL myTime |
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INTEGER myThid |
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C !OUTPUT PARAMETERS: ================================================== |
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C none |
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#ifdef ALLOW_PTRACERS |
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C !LOCAL VARIABLES: ==================================================== |
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jmc |
1.27 |
C iTracer :: tracer index |
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adcroft |
1.1 |
C iMin,iMax,jMin,jMax :: loop ranges |
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C kUp,kDown :: toggle indices for even/odd level fluxes |
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C km1 :: =min(1,k-1) |
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dimitri |
1.8 |
C GAD_TR :: passive tracer id (GAD_TR1+iTracer-1) |
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jmc |
1.27 |
INTEGER iTracer |
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adcroft |
1.1 |
INTEGER iMin,iMax,jMin,jMax |
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INTEGER kUp,kDown,km1 |
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dimitri |
1.8 |
INTEGER GAD_TR |
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jmc |
1.3 |
LOGICAL calcAdvection |
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jmc |
1.23 |
INTEGER iterNb |
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adcroft |
1.1 |
CEOP |
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C Loop over tracers |
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DO iTracer=1,PTRACERS_numInUse |
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C Loop ranges for daughter routines |
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iMin = 1-OLx+2 |
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iMax = sNx+OLx-1 |
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jMin = 1-OLy+2 |
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jMax = sNy+OLy-1 |
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km1 = MAX(1,k-1) |
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kUp = 1+MOD(k+1,2) |
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kDown= 1+MOD(k,2) |
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C Calculate active tracer tendencies (gPtr) due to internal processes |
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C (advection, [explicit] diffusion, parameterizations,...) |
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jmc |
1.3 |
calcAdvection = .NOT.multiDimAdvection |
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& .OR. PTRACERS_advScheme(iTracer).EQ.ENUM_CENTERED_2ND |
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& .OR. PTRACERS_advScheme(iTracer).EQ.ENUM_UPWIND_3RD |
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& .OR. PTRACERS_advScheme(iTracer).EQ.ENUM_CENTERED_4TH |
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dimitri |
1.8 |
GAD_TR = GAD_TR1 + iTracer - 1 |
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jmc |
1.13 |
CALL GAD_CALC_RHS( |
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I bi,bj,iMin,iMax,jMin,jMax,k,kM1,kUp,kDown, |
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I xA,yA,uTrans,vTrans,rTrans,rTransKp1,maskUp, |
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I uVel, vVel, wVel, |
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I PTRACERS_diffKh(iTracer), |
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I PTRACERS_diffK4(iTracer), |
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jmc |
1.19 |
I KappaRtr(1-Olx,1-Oly,iTracer), |
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jmc |
1.29 |
I gPtrNm1(1-Olx,1-Oly,1,1,1,iTracer), |
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jmc |
1.26 |
I pTracer(1-Olx,1-Oly,1,1,1,iTracer), |
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jmc |
1.13 |
I GAD_TR, |
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I PTRACERS_advScheme(iTracer), |
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jmc |
1.14 |
I PTRACERS_advScheme(iTracer), |
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jmc |
1.22 |
I calcAdvection, PTRACERS_ImplVertAdv(iTracer), |
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jmc |
1.29 |
I .FALSE., |
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jmc |
1.13 |
U rFlx(1-Olx,1-Oly,1,iTracer), |
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U gPtr(1-Olx,1-Oly,1,1,1,iTracer), |
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jmc |
1.17 |
I myTime, myIter, myThid ) |
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adcroft |
1.1 |
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C External forcing term(s) |
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jmc |
1.3 |
IF ( forcing_In_AB ) |
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& CALL PTRACERS_FORCING( |
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mlosch |
1.21 |
I bi,bj,iMin,iMax,jMin,jMax,k,iTracer, |
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heimbach |
1.11 |
U gPtr(1-Olx,1-Oly,1,1,1,iTracer), |
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jmc |
1.16 |
I surfaceForcingPtr(1-Olx,1-Oly,1,1,iTracer), |
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heimbach |
1.11 |
I myIter,myTime,myThid) |
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adcroft |
1.1 |
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jmc |
1.27 |
C If using Adams-Bashforth II, then extrapolate tendencies |
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spk |
1.24 |
C gPtr is now the tracer tendency for explicit advection/diffusion |
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adcroft |
1.1 |
IF ( PTRACERS_advScheme(iTracer).EQ.ENUM_CENTERED_2ND |
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& .OR.PTRACERS_advScheme(iTracer).EQ.ENUM_UPWIND_3RD |
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& .OR.PTRACERS_advScheme(iTracer).EQ.ENUM_CENTERED_4TH ) THEN |
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spk |
1.24 |
#ifdef ALLOW_MATRIX |
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C If matrix is being computed, block call to S/R ADAMS_BASHFORTH2 to |
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C prevent gPtr from being replaced by the average of gPtr and gPtrNm1. |
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IF (.NOT.useMATRIX) THEN |
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#endif |
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jmc |
1.23 |
iterNb = myIter |
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IF (staggerTimeStep) iterNb = myIter - 1 |
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adcroft |
1.1 |
CALL ADAMS_BASHFORTH2( |
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I bi,bj,K, |
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U gPtr(1-Olx,1-Oly,1,1,1,iTracer), |
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U gPtrNm1(1-Olx,1-Oly,1,1,1,iTracer), |
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jmc |
1.23 |
I iterNb, myThid ) |
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spk |
1.24 |
#ifdef ALLOW_MATRIX |
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ENDIF |
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#endif |
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adcroft |
1.1 |
ENDIF |
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jmc |
1.3 |
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C External forcing term(s) |
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IF ( .NOT.forcing_In_AB ) |
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& CALL PTRACERS_FORCING( |
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mlosch |
1.21 |
I bi,bj,iMin,iMax,jMin,jMax,k,iTracer, |
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heimbach |
1.11 |
U gPtr(1-Olx,1-Oly,1,1,1,iTracer), |
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jmc |
1.16 |
I surfaceForcingPtr(1-Olx,1-Oly,1,1,iTracer), |
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heimbach |
1.11 |
I myIter,myTime,myThid) |
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adcroft |
1.1 |
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#ifdef NONLIN_FRSURF |
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C Account for change in level thickness |
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IF (nonlinFreeSurf.GT.0) THEN |
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CALL FREESURF_RESCALE_G( |
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I bi,bj,K, |
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U gPtr(1-Olx,1-Oly,1,1,1,iTracer), |
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jmc |
1.4 |
I myThid ) |
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IF ( PTRACERS_advScheme(iTracer).EQ.ENUM_CENTERED_2ND |
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& .OR.PTRACERS_advScheme(iTracer).EQ.ENUM_UPWIND_3RD |
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& .OR.PTRACERS_advScheme(iTracer).EQ.ENUM_CENTERED_4TH ) |
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& CALL FREESURF_RESCALE_G( |
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I bi,bj,K, |
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U gPtrNm1(1-Olx,1-Oly,1,1,1,iTracer), |
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adcroft |
1.1 |
I myThid ) |
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ENDIF |
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#endif /* NONLIN_FRSURF */ |
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C Integrate forward in time, storing in gPtr: G=T+dt*G |
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CALL TIMESTEP_TRACER( |
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I bi,bj,iMin,iMax,jMin,jMax,k, |
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I PTRACERS_advScheme(iTracer), |
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I pTracer(1-Olx,1-Oly,1,1,1,iTracer), |
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I gPtr(1-Olx,1-Oly,1,1,1,iTracer), |
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I myIter,myThid ) |
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mlosch |
1.25 |
#ifdef ALLOW_OBCS |
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C Apply open boundary conditions |
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IF (useOBCS) THEN |
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CALL OBCS_APPLY_PTRACER( |
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I bi, bj, k, iTracer, |
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U gPtr(1-Olx,1-Oly,k,bi,bj,iTracer), |
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I myThid ) |
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END IF |
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#endif /* ALLOW_OBCS */ |
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adcroft |
1.1 |
C end of tracer loop |
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ENDDO |
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#endif /* ALLOW_PTRACERS */ |
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RETURN |
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END |
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