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C $Header: /u/gcmpack/MITgcm/pkg/rbcs/rbcs_fields_load.F,v 1.9 2009/04/28 18:18:29 jmc Exp $ |
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C $Name: $ |
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|
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#include "RBCS_OPTIONS.h" |
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|
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C !ROUTINE: RBCS_FIELDS_LOAD |
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C !INTERFACE: |
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SUBROUTINE RBCS_FIELDS_LOAD( myTime, myIter, myThid ) |
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C *==========================================================* |
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C | SUBROUTINE RBCS_FIELDS_LOAD |
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C | o Control reading of fields from external source. |
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C *==========================================================* |
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C | Offline External source field loading routine. |
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C | This routine is called every time we want to |
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C | load a a set of external fields. The routine decides |
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C | which fields to load and then reads them in. |
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C | This routine needs to be customised for particular |
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C | experiments. |
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C *==========================================================* |
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|
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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 "FFIELDS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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#ifdef ALLOW_PTRACERS |
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#include "PTRACERS_SIZE.h" |
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#include "PTRACERS_PARAMS.h" |
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#endif |
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#include "RBCS.h" |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C === Routine arguments === |
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C myTime :: Simulation time |
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C myIter :: Simulation timestep number |
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C myThid :: Thread no. that called this routine. |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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|
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C !FUNCTIONS: |
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INTEGER IFNBLNK, ILNBLNK |
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EXTERNAL IFNBLNK, ILNBLNK |
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|
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C !LOCAL VARIABLES: |
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C === Local arrays === |
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C [01] :: End points for interpolation |
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C Above use static heap storage to allow exchange. |
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C aWght, bWght :: Interpolation weights |
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|
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INTEGER bi,bj,i,j,k,intime0,intime1 |
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_RL aWght,bWght,rdt |
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INTEGER nForcingPeriods,Imytm,Ifprd,Ifcyc,Iftm |
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#ifdef ALLOW_PTRACERS |
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INTEGER iTracer |
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#endif |
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|
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#ifdef ALLOW_RBCS |
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CALL TIMER_START('RBCS_FIELDS_LOAD [I/O]', myThid) |
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|
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C First call requires that we initialize everything to zero for safety |
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IF ( myIter .EQ. nIter0 ) THEN |
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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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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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rbct0(i,j,k,bi,bj)=0. _d 0 |
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rbcs0(i,j,k,bi,bj)=0. _d 0 |
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rbct1(i,j,k,bi,bj)=0. _d 0 |
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rbcs1(i,j,k,bi,bj)=0. _d 0 |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_PTRACERS |
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DO iTracer = 1, PTRACERS_numInUse |
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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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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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rbcptr0(i,j,k,bi,bj,iTracer)=0. _d 0 |
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rbcptr1(i,j,k,bi,bj,iTracer)=0. _d 0 |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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#endif |
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ENDIF |
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|
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C Now calculate whether it is time to update the forcing arrays |
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IF ( rbcsForcingCycle.GT.0. _d 0 ) THEN |
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rdt = 1. _d 0 / deltaTclock |
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nForcingPeriods = NINT(rbcsForcingCycle/rbcsForcingPeriod) |
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Imytm = NINT( (myTime-rbcsIniter*deltaTclock)*rdt ) |
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Ifprd = NINT(rbcsForcingPeriod*rdt) |
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Ifcyc = NINT(rbcsForcingCycle*rdt) |
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Iftm = MOD( Imytm+Ifcyc-Ifprd/2, Ifcyc) |
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|
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intime0 = 1 + INT( Iftm/Ifprd ) |
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intime1 = 1 + MOD( intime0,nForcingPeriods ) |
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c aWght = DFLOAT( Iftm-Ifprd*(intime0 - 1) ) / DFLOAT( Ifprd ) |
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aWght = FLOAT( Iftm-Ifprd*(intime0 - 1) ) |
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bWght = FLOAT( Ifprd ) |
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aWght = aWght / bWght |
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bWght = 1. _d 0 - aWght |
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|
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ELSE |
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intime1 = 1 |
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intime0 = 1 |
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Iftm = 1 |
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Ifprd = 0 |
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aWght = .5 _d 0 |
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bWght = .5 _d 0 |
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ENDIF |
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|
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IF ( |
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& Iftm-Ifprd*(intime0-1) .EQ. 0 |
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& .OR. myIter .EQ. nIter0 |
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& ) THEN |
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|
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C If the above condition is met then we need to read in |
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C data for the period ahead and the period behind myTime. |
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_BEGIN_MASTER(myThid) |
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WRITE(standardMessageUnit,'(A,2I5,I10,1P1E20.12)') |
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& 'S/R RBCS_FIELDS_LOAD: Reading new data:', |
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& intime0, intime1, myIter, myTime |
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_END_MASTER(myThid) |
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|
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IF ( useRBCtemp .AND. relaxTFile .NE. ' ' ) THEN |
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CALL READ_REC_XYZ_RS(relaxTFile, rbct0, intime0, myIter,myThid) |
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CALL READ_REC_XYZ_RS(relaxTFile, rbct1, intime1, myIter,myThid) |
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ENDIF |
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IF ( useRBCsalt .AND. relaxSFile .NE. ' ' ) THEN |
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CALL READ_REC_XYZ_RS(relaxSFile, rbcs0, intime0, myIter,myThid) |
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CALL READ_REC_XYZ_RS(relaxSFile, rbcs1, intime1, myIter,myThid) |
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ENDIF |
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|
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#ifdef ALLOW_PTRACERS |
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IF ( usePTRACERS ) THEN |
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DO iTracer = 1, PTRACERS_numInUse |
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IF ( useRBCptrnum(iTracer) .AND. |
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& relaxPtracerFile(iTracer).NE. ' ' ) THEN |
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CALL READ_REC_XYZ_RS( relaxPtracerFile(iTracer), |
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& rbcptr0(1-Olx,1-Oly,1,1,1,iTracer), |
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& intime0, myIter, myThid ) |
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CALL READ_REC_XYZ_RS( relaxPtracerFile(iTracer), |
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& rbcptr1(1-Olx,1-Oly,1,1,1,iTracer), |
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& intime1, myIter, myThid ) |
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ENDIF |
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ENDDO |
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ENDIF |
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#endif |
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|
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IF ( useRBCtemp .AND. relaxTFile .NE. ' ' ) THEN |
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CALL EXCH_XYZ_RS( rbct0 , myThid ) |
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CALL EXCH_XYZ_RS( rbct1 , myThid ) |
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ENDIF |
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IF ( useRBCsalt .AND. relaxSFile .NE. ' ' ) THEN |
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CALL EXCH_XYZ_RS( rbcs0 , myThid ) |
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CALL EXCH_XYZ_RS( rbcs1 , myThid ) |
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ENDIF |
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#ifdef ALLOW_PTRACERS |
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IF (usePTRACERS) THEN |
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DO iTracer = 1, PTRACERS_numInUse |
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IF ( useRBCptrnum(iTracer) ) THEN |
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CALL EXCH_XYZ_RS( rbcptr0(1-Olx,1-Oly,1,1,1,iTracer),myThid ) |
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CALL EXCH_XYZ_RS( rbcptr1(1-Olx,1-Oly,1,1,1,iTracer),myThid ) |
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ENDIF |
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ENDDO |
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ENDIF |
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#endif /* ALLOW_PTRACERS */ |
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|
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ENDIF |
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|
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C-- Interpolate |
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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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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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RBCtemp(i,j,k,bi,bj) = bWght*rbct0(i,j,k,bi,bj) |
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& +aWght*rbct1(i,j,k,bi,bj) |
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RBCsalt(i,j,k,bi,bj) = bWght*rbcs0(i,j,k,bi,bj) |
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& +aWght*rbcs1(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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#ifdef ALLOW_PTRACERS |
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IF ( usePTRACERS ) THEN |
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DO iTracer = 1, PTRACERS_numInUse |
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IF (useRBCptrnum(iTracer)) THEN |
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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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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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RBC_ptracers(i,j,k,bi,bj,iTracer) = |
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& bWght*rbcptr0(i,j,k,bi,bj,iTracer) |
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& +aWght*rbcptr1(i,j,k,bi,bj,iTracer) |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDIF |
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ENDDO |
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ENDIF |
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#endif /* ALLOW_PTRACERS */ |
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|
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CALL TIMER_STOP ('RBCS_FIELDS_LOAD [I/O]', myThid) |
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|
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#endif /* ALLOW_RBCS */ |
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|
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RETURN |
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END |
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