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C $Header: /u/gcmpack/MITgcm/model/src/ini_salt.F,v 1.22 2009/10/15 01:06:51 jmc Exp $ |
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adcroft |
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C $Name: $ |
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#include "CPP_OPTIONS.h" |
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CBOP |
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C !ROUTINE: INI_SALT |
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C !INTERFACE: |
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SUBROUTINE INI_SALT( myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE INI_SALT |
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C | o Set model initial salinity field. |
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C *==========================================================* |
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C | There are several options for setting the initial |
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C | temperature file |
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C | 1. Inline code |
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C | 2. Vertical profile ( uniform S in X and Y ) |
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C | 3. Three-dimensional data from a file. For example from |
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C | Levitus or from a checkpoint file from a previous |
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C | integration. |
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C | In addition to setting the salinity field we also |
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C | set the initial salinity tendency term here. |
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C *==========================================================* |
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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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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C myThid :: Number of this instance of INI_SALT |
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INTEGER myThid |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C bi,bj :: Tile indices |
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C i,j,k :: Loop counters |
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C rD :: Radial displacement of point i,j |
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INTEGER bi, bj |
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INTEGER i, j, k, localWarnings |
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_RL rD |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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CEOP |
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C-- Initialise salinity field to the vertical reference profile |
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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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salt(i,j,k,bi,bj) = sRef(k) |
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ENDDO |
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ENDDO |
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C=== Set-up specific modification starts here === |
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C-- Initialise salinity field to a circular patch. |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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rD = SQRT( ( xC(i,j,bi,bj) - 40. _d 3 )**2 |
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& +( yC(i,j,bi,bj) - 40. _d 3 )**2 |
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& +( rC(k) + 50. _d 3 )**2 |
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& ) |
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IF ( rD.LE.60. _d 3 ) salt(i,j,k,bi,bj) = sRef(k)+1. _d 0 |
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ENDDO |
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ENDDO |
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C=== Set-up specific modification ends here === |
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ENDDO |
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ENDDO |
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ENDDO |
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IF ( hydrogSaltFile .NE. ' ' ) THEN |
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CALL READ_FLD_XYZ_RL( hydrogSaltFile, ' ', salt, 0, myThid ) |
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_EXCH_XYZ_RL( salt, myThid ) |
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ENDIF |
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C-- Apply mask and test consistency |
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localWarnings=0 |
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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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IF ( maskIniSalt ) 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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IF (maskC(i,j,k,bi,bj).EQ.0.) salt(i,j,k,bi,bj) = 0. |
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ENDDO |
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ENDDO |
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ENDIF |
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IF ( sRef(k).NE.0. ) THEN |
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DO j=1,sNy |
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DO i=1,sNx |
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IF ( maskC(i,j,k,bi,bj).NE.0. |
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& .AND. salt(i,j,k,bi,bj).EQ.0. ) THEN |
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localWarnings=localWarnings+1 |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDDO |
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IF ( localWarnings.NE.0 ) THEN |
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IF ( checkIniSalt ) THEN |
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WRITE(msgBuf,'(A,I10,A)') |
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& ' INI_SALT: found', localWarnings, |
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& ' wet grid-pts with salt=0 identically.' |
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CALL PRINT_ERROR( msgBuf , myThid) |
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WRITE(msgBuf,'(A,A)') |
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& ' If this is intentional, you need to', |
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& ' set checkIniSalt=.false. in "data", namelist PARM05' |
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CALL PRINT_ERROR( msgBuf , myThid) |
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STOP 'ABNORMAL END: S/R INI_SALT' |
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ELSE |
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WRITE(msgBuf,'(A,I10,A)') |
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& '** WARNINGS ** INI_SALT: found', localWarnings, |
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& ' wet grid-pts with salt=0 identically.' |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT, myThid ) |
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ENDIF |
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ENDIF |
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IF (debugMode) THEN |
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CALL PLOT_FIELD_XYZRL( salt, 'Initial Salinity', |
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& Nr, 1, myThid ) |
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ENDIF |
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RETURN |
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END |