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C $Header: /u/gcmpack/MITgcm/model/src/external_fields_load.F,v 1.32 2009/04/28 18:01:14 jmc Exp $ |
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C $Name: $ |
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|
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#include "PACKAGES_CONFIG.h" |
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#include "CPP_OPTIONS.h" |
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|
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CBOP |
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C !ROUTINE: EXTERNAL_FIELDS_LOAD |
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C !INTERFACE: |
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SUBROUTINE EXTERNAL_FIELDS_LOAD( myTime, myIter, myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE EXTERNAL_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 | 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 | Notes |
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C | ===== |
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C | Two-dimensional and three-dimensional I/O are handled in |
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C | the following way under MITgcmUV. A master thread |
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C | performs I/O using system calls. This threads reads data |
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C | into a temporary buffer. At present the buffer is loaded |
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C | with the entire model domain. This is probably OK for now |
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C | Each thread then copies data from the buffer to the |
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C | region of the proper array it is responsible for. |
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C | ===== |
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C | Conversion of flux fields are described in FFIELDS.h |
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C *==========================================================* |
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C \ev |
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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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|
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C !INPUT/OUTPUT PARAMETERS: |
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C === Routine arguments === |
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C myThid - Thread no. that called this routine. |
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C myTime - Simulation time |
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C myIter - Simulation timestep number |
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INTEGER myThid |
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_RL myTime |
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INTEGER myIter |
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|
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#ifndef EXCLUDE_FFIELDS_LOAD |
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|
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C !LOCAL VARIABLES: |
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C === Local arrays === |
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C aWght, bWght :: Interpolation weights |
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INTEGER bi,bj,i,j,intime0,intime1 |
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_RL aWght,bWght,rdt |
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_RL tmp1Wght, tmp2Wght |
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INTEGER nForcingPeriods,Imytm,Ifprd,Ifcyc,Iftm |
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CEOP |
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|
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IF ( periodicExternalForcing ) THEN |
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|
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C First call requires that we initialize everything to zero for safety |
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cph has been shifted to ini_forcing.F |
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|
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C Now calculate whether it is time to update the forcing arrays |
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rdt = 1. _d 0 / deltaTclock |
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nForcingPeriods = NINT(externForcingCycle/externForcingPeriod) |
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Imytm = NINT(myTime*rdt) |
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Ifprd = NINT(externForcingPeriod*rdt) |
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Ifcyc = NINT(externForcingCycle*rdt) |
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Imytm = Imytm + Ifcyc*( 1 - NINT(myTime/externForcingCycle) ) |
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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-jmc: with some option of g77, FLOAT results in real*4 evaluation |
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C of aWght; using DFLOAT always force real*8 computation: |
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c aWght = DFLOAT( Iftm-Ifprd*(intime0 - 1) ) / DFLOAT( Ifprd ) |
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C-ph: however, TAF doesnt recognize DFLOAT, |
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C-jmc: so let's try this: |
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tmp1Wght = FLOAT( Iftm-Ifprd*(intime0 - 1) ) |
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tmp2Wght = FLOAT( Ifprd ) |
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aWght = tmp1Wght / tmp2Wght |
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bWght = 1. _d 0 - aWght |
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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 EXTERNAL_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 ( zonalWindFile .NE. ' ' ) THEN |
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CALL READ_REC_XY_RS( zonalWindFile, taux0, |
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& intime0, myIter, myThid ) |
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CALL READ_REC_XY_RS( zonalWindFile, taux1, |
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& intime1, myIter, myThid ) |
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ENDIF |
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IF ( meridWindFile .NE. ' ' ) THEN |
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CALL READ_REC_XY_RS( meridWindFile, tauy0, |
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& intime0, myIter, myThid ) |
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CALL READ_REC_XY_RS( meridWindFile, tauy1, |
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& intime1, myIter, myThid ) |
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ENDIF |
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IF ( surfQFile .NE. ' ' ) THEN |
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CALL READ_REC_XY_RS( surfQFile, Qnet0, |
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& intime0, myIter, myThid ) |
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CALL READ_REC_XY_RS( surfQFile, Qnet1, |
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& intime1, myIter, myThid ) |
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ELSEIF ( surfQnetFile .NE. ' ' ) THEN |
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CALL READ_REC_XY_RS( surfQnetFile, Qnet0, |
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& intime0, myIter, myThid ) |
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CALL READ_REC_XY_RS( surfQnetFile, Qnet1, |
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& intime1, myIter, myThid ) |
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ENDIF |
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IF ( EmPmRfile .NE. ' ' ) THEN |
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CALL READ_REC_XY_RS( EmPmRfile, EmPmR0, |
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& intime0, myIter, myThid ) |
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CALL READ_REC_XY_RS( EmPmRfile, EmPmR1, |
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& intime1, myIter, myThid ) |
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c IF ( convertEmP2rUnit.EQ.mass2rUnit ) THEN |
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C- EmPmR is now (after c59h) expressed in kg/m2/s (fresh water mass flux) |
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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 j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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EmPmR0(i,j,bi,bj) = EmPmR0(i,j,bi,bj)*rhoConstFresh |
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EmPmR1(i,j,bi,bj) = EmPmR1(i,j,bi,bj)*rhoConstFresh |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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c ENDIF |
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ENDIF |
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IF ( saltFluxFile .NE. ' ' ) THEN |
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CALL READ_REC_XY_RS( saltFluxFile, saltFlux0, |
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& intime0, myIter, myThid ) |
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CALL READ_REC_XY_RS( saltFluxFile, saltFlux1, |
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& intime1, myIter, myThid ) |
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ENDIF |
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IF ( thetaClimFile .NE. ' ' ) THEN |
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CALL READ_REC_XY_RS( thetaClimFile, SST0, |
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& intime0, myIter, myThid ) |
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CALL READ_REC_XY_RS( thetaClimFile, SST1, |
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& intime1, myIter, myThid ) |
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ENDIF |
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IF ( saltClimFile .NE. ' ' ) THEN |
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CALL READ_REC_XY_RS( saltClimFile, SSS0, |
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& intime0, myIter, myThid ) |
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CALL READ_REC_XY_RS( saltClimFile, SSS1, |
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& intime1, myIter, myThid ) |
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ENDIF |
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#ifdef SHORTWAVE_HEATING |
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IF ( surfQswFile .NE. ' ' ) THEN |
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CALL READ_REC_XY_RS( surfQswFile, Qsw0, |
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& intime0, myIter, myThid ) |
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CALL READ_REC_XY_RS( surfQswFile, Qsw1, |
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& intime1, myIter, myThid ) |
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IF ( surfQFile .NE. ' ' ) THEN |
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C- Qnet is now (after c54) the net Heat Flux (including SW) |
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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 j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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Qnet0(i,j,bi,bj) = Qnet0(i,j,bi,bj) + Qsw0(i,j,bi,bj) |
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Qnet1(i,j,bi,bj) = Qnet1(i,j,bi,bj) + Qsw1(i,j,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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ENDIF |
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ENDIF |
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#endif |
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#ifdef ATMOSPHERIC_LOADING |
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IF ( pLoadFile .NE. ' ' ) THEN |
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CALL READ_REC_XY_RS( pLoadFile, pLoad0, |
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& intime0, myIter, myThid ) |
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CALL READ_REC_XY_RS( pLoadFile, pLoad1, |
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& intime1, myIter, myThid ) |
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ENDIF |
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#endif |
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|
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C- thread synchronisation (barrier) is part of the EXCH S/R calls |
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_EXCH_XY_RS(SST0 , myThid ) |
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_EXCH_XY_RS(SST1 , myThid ) |
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_EXCH_XY_RS(SSS0 , myThid ) |
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_EXCH_XY_RS(SSS1 , myThid ) |
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CALL EXCH_UV_XY_RS(taux0,tauy0,.TRUE.,myThid) |
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CALL EXCH_UV_XY_RS(taux1,tauy1,.TRUE.,myThid) |
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_EXCH_XY_RS(Qnet0, myThid ) |
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_EXCH_XY_RS(Qnet1, myThid ) |
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_EXCH_XY_RS(EmPmR0, myThid ) |
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_EXCH_XY_RS(EmPmR1, myThid ) |
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_EXCH_XY_RS(saltFlux0, myThid ) |
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_EXCH_XY_RS(saltFlux1, myThid ) |
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#ifdef SHORTWAVE_HEATING |
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_EXCH_XY_RS(Qsw0, myThid ) |
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_EXCH_XY_RS(Qsw1, myThid ) |
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#endif |
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#ifdef ATMOSPHERIC_LOADING |
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_EXCH_XY_RS(pLoad0, myThid ) |
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_EXCH_XY_RS(pLoad1, myThid ) |
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#endif |
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|
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ENDIF |
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|
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C-- Interpolate fu,fv,Qnet,EmPmR,SST,SSS,Qsw |
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DO bj = myByLo(myThid), myByHi(myThid) |
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DO bi = myBxLo(myThid), myBxHi(myThid) |
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IF ( thetaClimFile .NE. ' ' ) 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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SST(i,j,bi,bj) = bWght*SST0(i,j,bi,bj) |
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& + aWght*SST1(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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IF ( saltClimFile .NE. ' ' ) 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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SSS(i,j,bi,bj) = bWght*SSS0(i,j,bi,bj) |
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& + aWght*SSS1(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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IF ( zonalWindFile .NE. ' ' ) 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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fu(i,j,bi,bj) = bWght*taux0(i,j,bi,bj) |
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& + aWght*taux1(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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IF ( meridWindFile .NE. ' ' ) 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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fv(i,j,bi,bj) = bWght*tauy0(i,j,bi,bj) |
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& + aWght*tauy1(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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IF ( surfQnetFile .NE. ' ' |
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& .OR. surfQFile .NE. ' ' ) 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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Qnet(i,j,bi,bj) = bWght*Qnet0(i,j,bi,bj) |
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& + aWght*Qnet1(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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IF ( EmPmRfile .NE. ' ' ) 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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EmPmR(i,j,bi,bj) = bWght*EmPmR0(i,j,bi,bj) |
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& + aWght*EmPmR1(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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IF ( saltFluxFile .NE. ' ' ) 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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saltFlux(i,j,bi,bj) = bWght*saltFlux0(i,j,bi,bj) |
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& + aWght*saltFlux1(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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#ifdef SHORTWAVE_HEATING |
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IF ( surfQswFile .NE. ' ' ) 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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Qsw(i,j,bi,bj) = bWght*Qsw0(i,j,bi,bj) |
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& + aWght*Qsw1(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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#endif |
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#ifdef ATMOSPHERIC_LOADING |
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IF ( pLoadFile .NE. ' ' ) 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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pLoad(i,j,bi,bj) = bWght*pLoad0(i,j,bi,bj) |
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& + aWght*pLoad1(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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#endif |
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ENDDO |
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ENDDO |
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|
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C-- Print for checking: |
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c IF ( debugLevel.GE.debLevA .AND. myIter.LT.50+nIter0) THEN |
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IF ( debugLevel.GE.debLevA .AND. myTime.LT.62208000.) THEN |
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_BEGIN_MASTER( myThid ) |
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WRITE(standardMessageUnit,'(a,1p7e12.4,2i6,2e12.4)') |
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& 'time,SST,SSS,fu,fv,Q,E-P,i0,i1,a,b = ', |
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& myTime, |
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& SST(1,sNy,1,1),SSS(1,sNy,1,1), |
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& fu(1,sNy,1,1),fv(1,sNy,1,1), |
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& Qnet(1,sNy,1,1),EmPmR(1,sNy,1,1), |
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& intime0,intime1,aWght,bWght |
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WRITE(standardMessageUnit,'(a,1p4e12.4,2E23.15)') |
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& 'time,fu0,fu1,fu = ', |
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& myTime, |
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& taux0(1,sNy,1,1),taux1(1,sNy,1,1),fu(1,sNy,1,1), |
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& aWght,bWght |
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_END_MASTER( myThid ) |
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ENDIF |
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|
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C endif for periodicForcing |
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ENDIF |
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|
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#endif /* EXCLUDE_FFIELDS_LOAD */ |
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|
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RETURN |
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END |
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