| 1 |
C $Header: /u/gcmpack/MITgcm/pkg/obcs/obcs_exchanges.F,v 1.2 2011/05/24 14:31:14 jmc Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
#include "OBCS_OPTIONS.h" |
| 5 |
|
| 6 |
CBOP |
| 7 |
C !ROUTINE: OBCS_U1_ADV_TRACER |
| 8 |
|
| 9 |
C !INTERFACE: ========================================================== |
| 10 |
SUBROUTINE OBCS_U1_ADV_TRACER( |
| 11 |
I doAdvXdir, |
| 12 |
I trIdentity, bi, bj, k, |
| 13 |
I maskLoc, vTrans, tracer, |
| 14 |
U vT, |
| 15 |
I myThid ) |
| 16 |
|
| 17 |
C !DESCRIPTION: |
| 18 |
C Update advective flux by replacing values at Open-Boundaries |
| 19 |
C with simply 1rst Order upwind advection scheme calculation. |
| 20 |
C Provide the option to do the replacement only in case of outflow |
| 21 |
C or indpendently of the sign of the flow. |
| 22 |
|
| 23 |
C !USES: =============================================================== |
| 24 |
IMPLICIT NONE |
| 25 |
C == Global variables == |
| 26 |
#include "SIZE.h" |
| 27 |
#include "EEPARAMS.h" |
| 28 |
c#include "PARAMS.h" |
| 29 |
#include "GRID.h" |
| 30 |
#include "OBCS_PARAMS.h" |
| 31 |
#ifdef ALLOW_PTRACERS |
| 32 |
# include "PTRACERS_SIZE.h" |
| 33 |
# include "OBCS_PTRACERS.h" |
| 34 |
#endif /* ALLOW_PTRACERS */ |
| 35 |
#ifdef ALLOW_GENERIC_ADVDIFF |
| 36 |
# include "GAD.h" |
| 37 |
#endif |
| 38 |
|
| 39 |
C !INPUT/OUTPUT PARAMETERS: ============================================ |
| 40 |
C doAdvXdir :: =T: advection in X-direction ; =F: in Y-direction |
| 41 |
C trIdentity :: tracer identifier |
| 42 |
C bi,bj :: tile indices |
| 43 |
C k :: vertical level |
| 44 |
C maskLoc :: local mask at velocity location |
| 45 |
C vTrans :: volume transport |
| 46 |
C tracer :: tracer field |
| 47 |
C vT :: advective flux |
| 48 |
C myThid :: thread number |
| 49 |
LOGICAL doAdvXdir |
| 50 |
INTEGER trIdentity |
| 51 |
INTEGER bi, bj, k |
| 52 |
_RS maskLoc(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 53 |
_RL vTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 54 |
_RL tracer (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 55 |
_RL vT (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 56 |
INTEGER myThid |
| 57 |
|
| 58 |
#ifdef ALLOW_OBCS |
| 59 |
#ifdef ALLOW_GENERIC_ADVDIFF |
| 60 |
C !LOCAL VARIABLES: ==================================================== |
| 61 |
C i,j :: loop indices |
| 62 |
C msgBuf :: message buffer |
| 63 |
INTEGER i,j |
| 64 |
INTEGER updateAdvFlx |
| 65 |
_RL vAbs, tmpVar |
| 66 |
CHARACTER*(MAX_LEN_MBUF) msgBuf |
| 67 |
#ifdef ALLOW_PTRACERS |
| 68 |
INTEGER iTr |
| 69 |
#endif /* ALLOW_PTRACERS */ |
| 70 |
CEOP |
| 71 |
|
| 72 |
updateAdvFlx = 0 |
| 73 |
IF ( trIdentity.EQ.GAD_TEMPERATURE ) THEN |
| 74 |
updateAdvFlx = OBCS_u1_adv_T |
| 75 |
ELSEIF ( trIdentity.EQ.GAD_SALINITY) THEN |
| 76 |
updateAdvFlx = OBCS_u1_adv_S |
| 77 |
#ifdef ALLOW_PTRACERS |
| 78 |
ELSEIF ( trIdentity.GE.GAD_TR1) THEN |
| 79 |
iTr = trIdentity - GAD_TR1 + 1 |
| 80 |
updateAdvFlx = OBCS_u1_adv_Tr(iTr) |
| 81 |
#endif /* ALLOW_PTRACERS */ |
| 82 |
ELSE |
| 83 |
WRITE(msgBuf,'(A,I4)') |
| 84 |
& ' OBCS_U1_ADV_TRACER: Invalid tracer Id: ',trIdentity |
| 85 |
CALL PRINT_ERROR(msgBuf, myThid) |
| 86 |
STOP 'ABNORMAL END: S/R OBCS_U1_ADV_TRACER' |
| 87 |
ENDIF |
| 88 |
|
| 89 |
IF ( updateAdvFlx .GT. 0 ) THEN |
| 90 |
|
| 91 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 92 |
STOP 'ABNORMAL END: S/R OBCS_U1_ADV_TRACER' |
| 93 |
#else /* ALLOW_AUTODIFF_TAMC */ |
| 94 |
|
| 95 |
IF ( doAdvXdir ) THEN |
| 96 |
C-- Advective flux in X-direction |
| 97 |
|
| 98 |
IF ( updateAdvFlx .EQ. 1 ) THEN |
| 99 |
C- only if outflow |
| 100 |
DO j=1-OLy,sNy+OLy |
| 101 |
DO i=2-OLx,sNx+OLx |
| 102 |
tmpVar = vTrans(i,j)*maskLoc(i,j) |
| 103 |
& *( maskInC(i-1,j,bi,bj) - maskInC(i,j,bi,bj) ) |
| 104 |
IF ( tmpVar.GT. 0. _d 0 ) THEN |
| 105 |
vAbs = ABS(vTrans(i,j)) |
| 106 |
vT(i,j) = ( vTrans(i,j)+vAbs )* 0.5 _d 0 * tracer(i-1,j) |
| 107 |
& + ( vTrans(i,j)-vAbs )* 0.5 _d 0 * tracer(i,j) |
| 108 |
ENDIF |
| 109 |
ENDDO |
| 110 |
ENDDO |
| 111 |
ELSE |
| 112 |
C- no condition (inflow & outflow) |
| 113 |
DO j=1-OLy,sNy+OLy |
| 114 |
DO i=2-OLx,sNx+OLx |
| 115 |
IF ( maskLoc(i,j).EQ.1. .AND. |
| 116 |
& maskInC(i-1,j,bi,bj).NE.maskInC(i,j,bi,bj) ) THEN |
| 117 |
vAbs = ABS(vTrans(i,j)) |
| 118 |
vT(i,j) = ( vTrans(i,j)+vAbs )* 0.5 _d 0 * tracer(i-1,j) |
| 119 |
& + ( vTrans(i,j)-vAbs )* 0.5 _d 0 * tracer(i,j) |
| 120 |
ENDIF |
| 121 |
ENDDO |
| 122 |
ENDDO |
| 123 |
ENDIF |
| 124 |
|
| 125 |
ELSE |
| 126 |
C-- Advective flux in Y-direction |
| 127 |
|
| 128 |
IF ( updateAdvFlx .EQ. 1 ) THEN |
| 129 |
C- only if outflow |
| 130 |
DO j=2-OLy,sNy+OLy |
| 131 |
DO i=1-OLx,sNx+OLx |
| 132 |
tmpVar = vTrans(i,j)*maskLoc(i,j) |
| 133 |
& *( maskInC(i,j-1,bi,bj) - maskInC(i,j,bi,bj) ) |
| 134 |
IF ( tmpVar.GT. 0. _d 0 ) THEN |
| 135 |
vAbs = ABS(vTrans(i,j)) |
| 136 |
vT(i,j) = ( vTrans(i,j)+vAbs )* 0.5 _d 0 * tracer(i,j-1) |
| 137 |
& + ( vTrans(i,j)-vAbs )* 0.5 _d 0 * tracer(i,j) |
| 138 |
ENDIF |
| 139 |
ENDDO |
| 140 |
ENDDO |
| 141 |
ELSE |
| 142 |
C- no condition (inflow & outflow) |
| 143 |
DO j=2-OLy,sNy+OLy |
| 144 |
DO i=1-OLx,sNx+OLx |
| 145 |
IF ( maskLoc(i,j).EQ.1. .AND. |
| 146 |
& maskInC(i,j-1,bi,bj).NE.maskInC(i,j,bi,bj) ) THEN |
| 147 |
vAbs = ABS(vTrans(i,j)) |
| 148 |
vT(i,j) = ( vTrans(i,j)+vAbs )* 0.5 _d 0 * tracer(i,j-1) |
| 149 |
& + ( vTrans(i,j)-vAbs )* 0.5 _d 0 * tracer(i,j) |
| 150 |
ENDIF |
| 151 |
ENDDO |
| 152 |
ENDDO |
| 153 |
ENDIF |
| 154 |
|
| 155 |
C-- end if X-direction / Y-direction |
| 156 |
ENDIF |
| 157 |
|
| 158 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
| 159 |
|
| 160 |
C-- end if updateAdvFlx > 0 |
| 161 |
ENDIF |
| 162 |
|
| 163 |
#endif /* ALLOW_GENERIC_ADVDIFF */ |
| 164 |
#endif /* ALLOW_OBCS */ |
| 165 |
|
| 166 |
RETURN |
| 167 |
END |
Parent Directory
| 
Revision Log
| 
Revision Graph