| 1 |
C $Header: /u/gcmpack/MITgcm/verification/matrix_example/code/ptracers_integrate.F,v 1.1 2005/04/18 20:13:27 spk Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
#include "PTRACERS_OPTIONS.h" |
| 5 |
|
| 6 |
CBOP |
| 7 |
C !ROUTINE: PTRACERS_INTEGRATE |
| 8 |
|
| 9 |
C !INTERFACE: ========================================================== |
| 10 |
SUBROUTINE PTRACERS_INTEGRATE( |
| 11 |
I bi,bj,k, |
| 12 |
I xA,yA,uTrans,vTrans,rTrans, |
| 13 |
I rTransKp1,maskUp, |
| 14 |
X rFlx,KappaRtr, |
| 15 |
I myIter,myTime,myThid ) |
| 16 |
|
| 17 |
C !DESCRIPTION: |
| 18 |
C Calculates tendancy for passive tracers and integrates forward |
| 19 |
C in time. |
| 20 |
|
| 21 |
C !USES: =============================================================== |
| 22 |
IMPLICIT NONE |
| 23 |
#include "SIZE.h" |
| 24 |
#include "EEPARAMS.h" |
| 25 |
#include "PARAMS.h" |
| 26 |
#include "DYNVARS.h" |
| 27 |
#include "PTRACERS_SIZE.h" |
| 28 |
#include "PTRACERS.h" |
| 29 |
#include "GAD.h" |
| 30 |
|
| 31 |
C !INPUT PARAMETERS: =================================================== |
| 32 |
C bi,bj :: tile indices |
| 33 |
C k :: vertical level number |
| 34 |
C xA :: face area at U points in level k |
| 35 |
C yA :: face area at V points in level k |
| 36 |
C uTrans :: zonal transport in level k |
| 37 |
C vTrans :: meridional transport in level k |
| 38 |
C rTrans :: vertical volume transport at interface k |
| 39 |
C rTransKp1 :: vertical volume transport at interface k+1 |
| 40 |
C maskUp :: mask for vertical transport |
| 41 |
C rFlx :: vertical flux |
| 42 |
C KappaRtr :: vertical diffusion of passive tracers, interf k |
| 43 |
C myIter :: time-step number |
| 44 |
C myTime :: model time |
| 45 |
C myThid :: thread number |
| 46 |
INTEGER bi,bj,k |
| 47 |
_RS xA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 48 |
_RS yA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 49 |
_RL uTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 50 |
_RL vTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 51 |
_RL rTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 52 |
_RL rTransKp1(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 53 |
_RS maskUp (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 54 |
_RL rFlx(1-OLx:sNx+OLx,1-OLy:sNy+OLy,2,PTRACERS_num) |
| 55 |
_RL KappaRtr(1-Olx:sNx+Olx,1-Oly:sNy+Oly,PTRACERS_num) |
| 56 |
INTEGER myIter |
| 57 |
_RL myTime |
| 58 |
INTEGER myThid |
| 59 |
|
| 60 |
C !OUTPUT PARAMETERS: ================================================== |
| 61 |
C none |
| 62 |
|
| 63 |
#ifdef ALLOW_PTRACERS |
| 64 |
|
| 65 |
C !LOCAL VARIABLES: ==================================================== |
| 66 |
C i,j,k,bi,bj,iTracer :: loop indices |
| 67 |
C iMin,iMax,jMin,jMax :: loop ranges |
| 68 |
C kUp,kDown :: toggle indices for even/odd level fluxes |
| 69 |
C km1 :: =min(1,k-1) |
| 70 |
C GAD_TR :: passive tracer id (GAD_TR1+iTracer-1) |
| 71 |
INTEGER i,j,iTracer |
| 72 |
INTEGER iMin,iMax,jMin,jMax |
| 73 |
INTEGER kUp,kDown,km1 |
| 74 |
INTEGER GAD_TR |
| 75 |
LOGICAL calcAdvection |
| 76 |
INTEGER iterNb |
| 77 |
CEOP |
| 78 |
|
| 79 |
C Loop over tracers |
| 80 |
DO iTracer=1,PTRACERS_numInUse |
| 81 |
|
| 82 |
C Loop ranges for daughter routines |
| 83 |
iMin = 1-OLx+2 |
| 84 |
iMax = sNx+OLx-1 |
| 85 |
jMin = 1-OLy+2 |
| 86 |
jMax = sNy+OLy-1 |
| 87 |
|
| 88 |
km1 = MAX(1,k-1) |
| 89 |
kUp = 1+MOD(k+1,2) |
| 90 |
kDown= 1+MOD(k,2) |
| 91 |
|
| 92 |
C Calculate active tracer tendencies (gPtr) due to internal processes |
| 93 |
C (advection, [explicit] diffusion, parameterizations,...) |
| 94 |
calcAdvection = .NOT.multiDimAdvection |
| 95 |
& .OR. PTRACERS_advScheme(iTracer).EQ.ENUM_CENTERED_2ND |
| 96 |
& .OR. PTRACERS_advScheme(iTracer).EQ.ENUM_UPWIND_3RD |
| 97 |
& .OR. PTRACERS_advScheme(iTracer).EQ.ENUM_CENTERED_4TH |
| 98 |
GAD_TR = GAD_TR1 + iTracer - 1 |
| 99 |
CALL GAD_CALC_RHS( |
| 100 |
I bi,bj,iMin,iMax,jMin,jMax,k,kM1,kUp,kDown, |
| 101 |
I xA,yA,uTrans,vTrans,rTrans,rTransKp1,maskUp, |
| 102 |
I uVel, vVel, wVel, |
| 103 |
I PTRACERS_diffKh(iTracer), |
| 104 |
I PTRACERS_diffK4(iTracer), |
| 105 |
I KappaRtr(1-Olx,1-Oly,iTracer), |
| 106 |
I pTracer(1-Olx,1-Oly,1,1,1,iTracer), |
| 107 |
I GAD_TR, |
| 108 |
I PTRACERS_advScheme(iTracer), |
| 109 |
I PTRACERS_advScheme(iTracer), |
| 110 |
I calcAdvection, PTRACERS_ImplVertAdv(iTracer), |
| 111 |
U rFlx(1-Olx,1-Oly,1,iTracer), |
| 112 |
U gPtr(1-Olx,1-Oly,1,1,1,iTracer), |
| 113 |
I myTime, myIter, myThid ) |
| 114 |
|
| 115 |
C External forcing term(s) |
| 116 |
IF ( forcing_In_AB ) |
| 117 |
& CALL PTRACERS_FORCING( |
| 118 |
I bi,bj,iMin,iMax,jMin,jMax,k,iTracer, |
| 119 |
U gPtr(1-Olx,1-Oly,1,1,1,iTracer), |
| 120 |
I surfaceForcingPtr(1-Olx,1-Oly,1,1,iTracer), |
| 121 |
I myIter,myTime,myThid) |
| 122 |
|
| 123 |
C If using Adams-Bashforth II, then extrapolate tendancies |
| 124 |
C gPtr is now the tracer tendency for explicit advection/diffusion |
| 125 |
IF ( PTRACERS_advScheme(iTracer).EQ.ENUM_CENTERED_2ND |
| 126 |
& .OR.PTRACERS_advScheme(iTracer).EQ.ENUM_UPWIND_3RD |
| 127 |
& .OR.PTRACERS_advScheme(iTracer).EQ.ENUM_CENTERED_4TH ) THEN |
| 128 |
#ifdef ALLOW_MATRIX |
| 129 |
C If matrix is being computed, block call to S/R ADAMS_BASHFORTH2 to |
| 130 |
C prevent gPtr from being replaced by the average of gPtr and gPtrNm1. |
| 131 |
IF (.NOT.useMATRIX) THEN |
| 132 |
#endif |
| 133 |
iterNb = myIter |
| 134 |
IF (staggerTimeStep) iterNb = myIter - 1 |
| 135 |
CALL ADAMS_BASHFORTH2( |
| 136 |
I bi,bj,K, |
| 137 |
U gPtr(1-Olx,1-Oly,1,1,1,iTracer), |
| 138 |
U gPtrNm1(1-Olx,1-Oly,1,1,1,iTracer), |
| 139 |
I iterNb, myThid ) |
| 140 |
#ifdef ALLOW_MATRIX |
| 141 |
ENDIF |
| 142 |
#endif |
| 143 |
ENDIF |
| 144 |
|
| 145 |
C External forcing term(s) |
| 146 |
IF ( .NOT.forcing_In_AB ) |
| 147 |
& CALL PTRACERS_FORCING( |
| 148 |
I bi,bj,iMin,iMax,jMin,jMax,k,iTracer, |
| 149 |
U gPtr(1-Olx,1-Oly,1,1,1,iTracer), |
| 150 |
I surfaceForcingPtr(1-Olx,1-Oly,1,1,iTracer), |
| 151 |
I myIter,myTime,myThid) |
| 152 |
|
| 153 |
#ifdef NONLIN_FRSURF |
| 154 |
C Account for change in level thickness |
| 155 |
IF (nonlinFreeSurf.GT.0) THEN |
| 156 |
CALL FREESURF_RESCALE_G( |
| 157 |
I bi,bj,K, |
| 158 |
U gPtr(1-Olx,1-Oly,1,1,1,iTracer), |
| 159 |
I myThid ) |
| 160 |
IF ( PTRACERS_advScheme(iTracer).EQ.ENUM_CENTERED_2ND |
| 161 |
& .OR.PTRACERS_advScheme(iTracer).EQ.ENUM_UPWIND_3RD |
| 162 |
& .OR.PTRACERS_advScheme(iTracer).EQ.ENUM_CENTERED_4TH ) |
| 163 |
& CALL FREESURF_RESCALE_G( |
| 164 |
I bi,bj,K, |
| 165 |
U gPtrNm1(1-Olx,1-Oly,1,1,1,iTracer), |
| 166 |
I myThid ) |
| 167 |
ENDIF |
| 168 |
#endif /* NONLIN_FRSURF */ |
| 169 |
|
| 170 |
C Integrate forward in time, storing in gPtr: G=T+dt*G |
| 171 |
CALL TIMESTEP_TRACER( |
| 172 |
I bi,bj,iMin,iMax,jMin,jMax,k, |
| 173 |
I PTRACERS_advScheme(iTracer), |
| 174 |
I pTracer(1-Olx,1-Oly,1,1,1,iTracer), |
| 175 |
I gPtr(1-Olx,1-Oly,1,1,1,iTracer), |
| 176 |
I myIter,myThid ) |
| 177 |
|
| 178 |
C end of tracer loop |
| 179 |
ENDDO |
| 180 |
|
| 181 |
#endif /* ALLOW_PTRACERS */ |
| 182 |
|
| 183 |
RETURN |
| 184 |
END |
Parent Directory
| 
Revision Log
| 
Revision Graph