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C $Header: /u/gcmpack/MITgcm/model/src/external_fields_load.F,v 1.13 2003/10/16 15:47:57 edhill 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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LOGICAL DIFFERENT_MULTIPLE |
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EXTERNAL DIFFERENT_MULTIPLE |
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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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|
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#ifndef INCLUDE_EXTERNAL_FORCING_PACKAGE |
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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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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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cph arrays are now globally visible |
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cph |
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cph IF ( myIter .EQ. nIter0 ) THEN |
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cph CALL LEF_ZERO( taux0 ,myThid ) |
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cph CALL LEF_ZERO( tauy0 ,myThid ) |
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cph CALL LEF_ZERO( Qnet0 ,myThid ) |
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cph CALL LEF_ZERO( EmPmR0 ,myThid ) |
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cph CALL LEF_ZERO( SST0 ,myThid ) |
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cph CALL LEF_ZERO( SSS0 ,myThid ) |
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cph CALL LEF_ZERO( taux1 ,myThid ) |
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cph CALL LEF_ZERO( tauy1 ,myThid ) |
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cph CALL LEF_ZERO( Qnet1 ,myThid ) |
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cph CALL LEF_ZERO( EmPmR1 ,myThid ) |
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cph CALL LEF_ZERO( SST1 ,myThid ) |
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cph CALL LEF_ZERO( SSS1 ,myThid ) |
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#ifdef ATMOSPHERIC_LOADING |
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cph CALL LEF_ZERO( pload0 ,myThid ) |
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cph CALL LEF_ZERO( pload1 ,myThid ) |
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#endif |
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#ifdef SHORTWAVE_HEATING |
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cph CALL LEF_ZERO( Qsw0 ,myThid ) |
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cph CALL LEF_ZERO( Qsw1 ,myThid ) |
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#endif |
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cph 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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rdt=1. _d 0 / deltaTclock |
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nForcingPeriods=int(externForcingCycle/externForcingPeriod+0.5) |
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Imytm=int(myTime*rdt+0.5) |
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Ifprd=int(externForcingPeriod*rdt+0.5) |
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Ifcyc=int(externForcingCycle*rdt+0.5) |
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Iftm=mod( Imytm+Ifcyc-Ifprd/2 ,Ifcyc) |
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|
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intime0=int(Iftm/Ifprd) |
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intime1=mod(intime0+1,nForcingPeriods) |
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aWght=float( Iftm-Ifprd*intime0 )/float( Ifprd ) |
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bWght=1.-aWght |
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|
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intime0=intime0+1 |
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intime1=intime1+1 |
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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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_BEGIN_MASTER(myThid) |
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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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WRITE(*,*) |
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& 'S/R EXTERNAL_FIELDS_LOAD: Reading new data',myTime,myIter |
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|
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IF ( zonalWindFile .NE. ' ' ) THEN |
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CALL MDSREADFIELD ( zonalWindFile, readBinaryPrec, |
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& 'RS', 1, taux0, intime0, myThid ) |
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CALL MDSREADFIELD ( zonalWindFile, readBinaryPrec, |
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& 'RS', 1, taux1, intime1, myThid ) |
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ENDIF |
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IF ( meridWindFile .NE. ' ' ) THEN |
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CALL MDSREADFIELD ( meridWindFile, readBinaryPrec, |
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& 'RS', 1, tauy0, intime0, myThid ) |
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CALL MDSREADFIELD ( meridWindFile, readBinaryPrec, |
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& 'RS', 1, tauy1, intime1, myThid ) |
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ENDIF |
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IF ( surfQFile .NE. ' ' ) THEN |
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CALL MDSREADFIELD ( surfQFile, readBinaryPrec, |
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& 'RS', 1, Qnet0, intime0, myThid ) |
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CALL MDSREADFIELD ( surfQFile, readBinaryPrec, |
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& 'RS', 1, Qnet1, intime1, myThid ) |
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ENDIF |
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IF ( EmPmRfile .NE. ' ' ) THEN |
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CALL MDSREADFIELD ( EmPmRfile, readBinaryPrec, |
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& 'RS', 1, EmPmR0, intime0, myThid ) |
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CALL MDSREADFIELD ( EmPmRfile, readBinaryPrec, |
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& 'RS', 1, EmPmR1, intime1, myThid ) |
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ENDIF |
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IF ( thetaClimFile .NE. ' ' ) THEN |
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CALL MDSREADFIELD ( thetaClimFile, readBinaryPrec, |
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& 'RS', 1, SST0, intime0, myThid ) |
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CALL MDSREADFIELD ( thetaClimFile, readBinaryPrec, |
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& 'RS', 1, SST1, intime1, myThid ) |
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ENDIF |
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IF ( saltClimFile .NE. ' ' ) THEN |
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CALL MDSREADFIELD ( saltClimFile, readBinaryPrec, |
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& 'RS', 1, SSS0, intime0, myThid ) |
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CALL MDSREADFIELD ( saltClimFile, readBinaryPrec, |
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& 'RS', 1, SSS1, intime1, 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 MDSREADFIELD ( surfQswFile, readBinaryPrec, |
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& 'RS', 1, Qsw0, intime0, myThid ) |
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CALL MDSREADFIELD ( surfQswFile, readBinaryPrec, |
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& 'RS', 1, Qsw1, intime1, myThid ) |
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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 MDSREADFIELD ( pLoadFile, readBinaryPrec, |
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& 'RS', 1, pload0, intime0, myThid ) |
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CALL MDSREADFIELD ( pLoadFile, readBinaryPrec, |
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& 'RS', 1, pload1, intime1, myThid ) |
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ENDIF |
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#endif |
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|
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_END_MASTER(myThid) |
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C |
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_EXCH_XY_R4(SST0 , myThid ) |
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_EXCH_XY_R4(SST1 , myThid ) |
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_EXCH_XY_R4(SSS0 , myThid ) |
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_EXCH_XY_R4(SSS1 , myThid ) |
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c _EXCH_XY_R4(taux0 , myThid ) |
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c _EXCH_XY_R4(taux1 , myThid ) |
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c _EXCH_XY_R4(tauy0 , myThid ) |
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c _EXCH_XY_R4(tauy1 , 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_R4(Qnet0, myThid ) |
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_EXCH_XY_R4(Qnet1, myThid ) |
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_EXCH_XY_R4(EmPmR0, myThid ) |
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_EXCH_XY_R4(EmPmR1, myThid ) |
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#ifdef SHORTWAVE_HEATING |
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_EXCH_XY_R4(Qsw0, myThid ) |
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_EXCH_XY_R4(Qsw1, myThid ) |
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#endif |
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#ifdef ATMOSPHERIC_LOADING |
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_EXCH_XY_R4(pload0, myThid ) |
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_EXCH_XY_R4(pload1, myThid ) |
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#endif |
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C |
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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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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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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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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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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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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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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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saltFlux(i,j,bi,bj) = 0. _d 0 |
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#ifdef SHORTWAVE_HEATING |
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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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#endif |
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#ifdef ATMOSPHERIC_LOADING |
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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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#endif |
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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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C-- Diagnostics |
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IF (myThid.EQ.1 .AND. myTime.LT.62208000.) THEN |
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write(*,'(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(*,'(a,1p7e12.4)') |
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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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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 /* INCLUDE_EXTERNAL_FORCING_PACKAGE undef */ |
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|
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RETURN |
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END |
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|
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CBOP |
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C !ROUTINE: LEF_ZERO |
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C !INTERFACE: |
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SUBROUTINE LEF_ZERO( arr ,myThid ) |
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C !DESCRIPTION: \bv |
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C This routine simply sets the argument array to zero |
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C Used only by EXTERNAL_FIELDS_LOAD |
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C \ev |
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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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C !INPUT/OUTPUT PARAMETERS: |
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C === Arguments === |
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_RS arr (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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INTEGER myThid |
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C !LOCAL VARIABLES: |
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C === Local variables === |
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INTEGER i,j,bi,bj |
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CEOP |
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|
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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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arr(i,j,bi,bj)=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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|
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RETURN |
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END |
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