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C $Header: /u/gcmpack/MITgcm/model/src/ini_reference_state.F,v 1.2 2006/12/05 05:25:08 jmc Exp $ |
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C $Name: $ |
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c #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: INI_REFERENCE_STATE |
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C !INTERFACE: |
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SUBROUTINE INI_REFERENCE_STATE( myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE INI_REF_STATE |
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C | o Initialise reference vertical profile for state |
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C | variables (Pot.Temp., Salinity/Specif.Humid., ....) |
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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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c #include "GRID.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 :: my Thread Id number |
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INTEGER myThid |
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|
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C k :: loop index |
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C msgBuf :: Informational/error message buffer |
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C tmp4vRef :: temporary arrays to read in ref. vertical profile |
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C tmp8vRef :: temporary arrays to read in ref. vertical profile |
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C iUnit :: Work variable for IO unit number |
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REAL*4 tmp4vRef(Nr) |
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REAL*8 tmp8vRef(Nr) |
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_RL rhoRef(Nr) |
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_RL tracerDefault |
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INTEGER ILNBLNK |
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EXTERNAL ILNBLNK |
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INTEGER k, kLen, iUnit |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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CEOP |
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|
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_BEGIN_MASTER( myThid ) |
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|
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C-- Set reference Potential Temperature |
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IF ( tRefFile .EQ. ' ' ) THEN |
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C- set default vertical profile for temperature: tRef |
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tracerDefault = 20. |
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IF ( fluidIsAir ) tracerDefault = 300. |
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DO k=1,Nr |
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IF (tRef(k).EQ.UNSET_RL) tRef(k) = tracerDefault |
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tracerDefault = tRef(k) |
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ENDDO |
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ELSE |
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C- check for multiple definitions: |
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DO k=1,Nr |
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IF (tRef(k).NE.UNSET_RL) THEN |
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WRITE(msgBuf,'(A,I4,A)') |
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& 'S/R INI_PARMS: Cannot set both tRef(k=',k,') and tRefFile' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R INI_PARMS' |
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ENDIF |
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ENDDO |
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ENDIF |
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C- read from file: |
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IF ( tRefFile .NE. ' ' ) THEN |
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CALL MDSFINDUNIT( iUnit, myThid ) |
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kLen = ILNBLNK(tRefFile) |
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IF (readBinaryPrec.EQ.precFloat32) THEN |
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OPEN(iUnit, FILE=tRefFile(1:kLen), STATUS='OLD', |
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& FORM='UNFORMATTED',ACCESS='DIRECT',RECL=WORDLENGTH*Nr) |
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READ(iUnit,rec=1) tmp4vRef |
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CLOSE(iUnit) |
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#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR4( Nr, tmp4vRef ) |
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#endif |
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DO k=1,Nr |
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tRef(k) = tmp4vRef(k) |
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ENDDO |
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ELSEIF (readBinaryPrec.EQ.precFloat64) THEN |
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OPEN(iUnit, FILE=tRefFile(1:kLen), STATUS='OLD', |
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& FORM='UNFORMATTED',ACCESS='DIRECT',RECL=WORDLENGTH*2*Nr) |
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READ(iUnit,rec=1) tmp8vRef |
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CLOSE(iUnit) |
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#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR8( Nr, tmp8vRef ) |
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#endif |
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DO k=1,Nr |
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tRef(k) = tmp8vRef(k) |
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ENDDO |
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ENDIF |
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WRITE(msgBuf,'(3A)') 'S/R INI_REFERENCE_STATE:', |
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& ' tRef loaded from file: ', tRefFile(1:kLen) |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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ENDIF |
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|
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C-- Set reference Salinity/Specific Humidity |
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IF ( sRefFile .EQ. ' ' ) THEN |
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C- set default vertical profile for salinity/water-vapour: sRef |
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tracerDefault = 30. |
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IF ( fluidIsAir ) tracerDefault = 0. |
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DO k=1,Nr |
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IF (sRef(k).EQ.UNSET_RL) sRef(k) = tracerDefault |
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tracerDefault = sRef(k) |
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ENDDO |
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ELSE |
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C- check for multiple definitions: |
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DO k=1,Nr |
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IF (sRef(k).NE.UNSET_RL) THEN |
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WRITE(msgBuf,'(A,I4,A)') |
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& 'S/R INI_PARMS: Cannot set both sRef(k=',k,') and sRefFile' |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R INI_PARMS' |
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ENDIF |
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ENDDO |
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ENDIF |
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C- read from file: |
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IF ( sRefFile .NE. ' ' ) THEN |
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CALL MDSFINDUNIT( iUnit, myThid ) |
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kLen = ILNBLNK(sRefFile) |
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IF (readBinaryPrec.EQ.precFloat32) THEN |
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OPEN(iUnit, FILE=sRefFile(1:kLen), STATUS='OLD', |
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& FORM='UNFORMATTED',ACCESS='DIRECT',RECL=WORDLENGTH*Nr) |
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READ(iUnit,rec=1) tmp4vRef |
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CLOSE(iUnit) |
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#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR4( Nr, tmp4vRef ) |
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#endif |
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DO k=1,Nr |
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sRef(k) = tmp4vRef(k) |
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ENDDO |
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ELSEIF (readBinaryPrec.EQ.precFloat64) THEN |
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OPEN(iUnit, FILE=sRefFile(1:kLen), STATUS='OLD', |
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& FORM='UNFORMATTED',ACCESS='DIRECT',RECL=WORDLENGTH*2*Nr) |
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READ(iUnit,rec=1) tmp8vRef |
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CLOSE(iUnit) |
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#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR8( Nr, tmp8vRef ) |
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#endif |
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DO k=1,Nr |
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sRef(k) = tmp8vRef(k) |
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ENDDO |
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ENDIF |
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WRITE(msgBuf,'(3A)') 'S/R INI_REFERENCE_STATE:', |
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& ' sRef loaded from file: ', sRefFile(1:kLen) |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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ENDIF |
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|
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C-- Set reference Density |
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IF ( rhoRefFile .NE. ' ' ) THEN |
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C- read from file: |
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CALL MDSFINDUNIT( iUnit, myThid ) |
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kLen = ILNBLNK(rhoRefFile) |
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IF (readBinaryPrec.EQ.precFloat32) THEN |
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OPEN(iUnit, FILE=rhoRefFile(1:kLen), STATUS='OLD', |
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& FORM='UNFORMATTED',ACCESS='DIRECT',RECL=WORDLENGTH*Nr) |
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READ(iUnit,rec=1) tmp4vRef |
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CLOSE(iUnit) |
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#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR4( Nr, tmp4vRef ) |
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#endif |
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DO k=1,Nr |
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rhoRef(k) = tmp4vRef(k) |
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ENDDO |
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ELSEIF (readBinaryPrec.EQ.precFloat64) THEN |
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OPEN(iUnit, FILE=rhoRefFile(1:kLen), STATUS='OLD', |
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& FORM='UNFORMATTED',ACCESS='DIRECT',RECL=WORDLENGTH*2*Nr) |
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READ(iUnit,rec=1) tmp8vRef |
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CLOSE(iUnit) |
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#ifdef _BYTESWAPIO |
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CALL MDS_BYTESWAPR8( Nr, tmp8vRef ) |
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#endif |
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DO k=1,Nr |
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rhoRef(k) = tmp8vRef(k) |
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ENDDO |
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ENDIF |
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WRITE(msgBuf,'(3A)') 'S/R INI_REFERENCE_STATE:', |
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& ' rhoRef loaded from file: ', rhoRefFile(1:kLen) |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT , myThid) |
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ENDIF |
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|
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C-- Initialise density factor for anelastic formulation: |
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DO k=1,Nr |
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rhoFacC(k) = 1. _d 0 |
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recip_rhoFacC(k) = 1. _d 0 |
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ENDDO |
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DO k=1,Nr+1 |
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rhoFacF(k) = 1. _d 0 |
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recip_rhoFacF(k) = 1. _d 0 |
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ENDDO |
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|
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IF ( usingZCoords .AND. rhoRefFile .NE. ' ' ) THEN |
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C-- anelastic formulation : set density factor from reference density profile |
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C surface-interface rho-factor has to be 1: |
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rhoFacF(1) = 1. _d 0 |
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C rhoFac(k) = density ratio between layer k and top interface |
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DO k=1,Nr |
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rhoFacC(k) = rhoRef(k)/rhoConst |
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ENDDO |
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DO k=2,Nr |
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rhoFacF(k) = (rhoFacC(k-1)*delR(k)+rhoFacC(k)*delR(k-1)) |
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& / (delR(k)+delR(k-1)) |
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ENDDO |
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C extrapolate down to the bottom: |
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rhoFacF(Nr+1)= 2. _d 0*rhoFacC(Nr) - rhoFacF(Nr) |
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C- set reciprocal rho-factor: |
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DO k=1,Nr |
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recip_rhoFacC(k) = 1. _d 0/rhoFacC(k) |
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ENDDO |
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DO k=1,Nr+1 |
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recip_rhoFacF(k) = 1. _d 0/rhoFacF(k) |
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ENDDO |
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ENDIF |
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|
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_END_MASTER(myThid) |
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C-- Everyone else must wait for the parameters to be loaded |
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_BARRIER |
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|
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RETURN |
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END |
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