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C $Header: /u/gcmpack/MITgcm/model/src/ini_vertical_grid.F,v 1.15 2006/10/17 18:52:34 jmc Exp $ |
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C $Name: $ |
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#include "CPP_OPTIONS.h" |
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|
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CBOP |
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C !ROUTINE: INI_VERTICAL_GRID |
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C !INTERFACE: |
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SUBROUTINE INI_VERTICAL_GRID( myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE INI_VERTICAL_GRID |
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C | o Initialise vertical gridding arrays |
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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 "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 - Number of this instance of INI_DEPTHS |
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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 meesage buffer |
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INTEGER K |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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CEOP |
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_BEGIN_MASTER(myThid) |
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|
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C-- Set factors required for mixing pressure and meters as vertical coordinate. |
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C rkSign is a "sign" parameter which is used where the orientation of the vertical |
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C coordinate (pressure or meters) relative to the vertical index (K) is important. |
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C rkSign = -1 applies when K and the coordinate are in the opposite sense. |
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C rkSign = 1 applies when K and the coordinate are in the same sense. |
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rkSign = -1. _d 0 |
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gravitySign = -1. _d 0 |
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IF ( usingPCoords ) THEN |
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gravitySign = 1. _d 0 |
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ENDIF |
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|
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IF (setCenterDr) THEN |
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C-- Interface at middle between 2 centers : |
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|
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C- Check that all thickness are > 0 : |
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DO K=1,Nr+1 |
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IF (delRc(K).LE.0.) THEN |
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WRITE(msgBuf,'(A,I4,A,E16.8)') |
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& 'S/R INI_VERTICAL_GRID: delRc(K=',K,' )=',delRc(K) |
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CALL PRINT_ERROR( msgBuf , 1) |
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WRITE(msgBuf,'(A)') |
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& 'S/R INI_VERTICAL_GRID: Vert. grid spacing MUST BE > 0' |
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CALL PRINT_ERROR( msgBuf , 1) |
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STOP 'ABNORMAL END: S/R INI_VERTICAL_GRID' |
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ENDIF |
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ENDDO |
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|
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C- Calculate depths of centers and interfaces |
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rF(1) = Ro_SeaLevel |
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rC(1) = rF(1) + rkSign*delRc(1) |
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drC(1) = delRc(1) |
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drF(1) = delRc(1) |
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DO K=2,Nr |
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drC(K) = delRc(K) |
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drF(K-1) = drF(K-1) + 0.5 _d 0*delRc(K) |
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drF(K) = 0.5 _d 0*delRc(K) |
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rC(K) = rC(K-1) + rkSign*drC(K) |
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rF(K) = rF(K-1) + rkSign*drF(K-1) |
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ENDDO |
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drF(Nr) = drF(Nr) + delRc(Nr+1) |
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rF(Nr+1) = rF(Nr) + rkSign*drF(Nr) |
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|
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ELSE |
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C-- Center at middle between 2 interfaces : |
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|
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C- Check that all thickness are > 0 : |
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DO K=1,Nr |
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IF (delR(K).LE.0.) THEN |
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WRITE(msgBuf,'(A,I4,A,E16.8)') |
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& 'S/R INI_VERTICAL_GRID: delR(K=',K,' )=',delR(K) |
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CALL PRINT_ERROR( msgBuf , 1) |
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WRITE(msgBuf,'(A)') |
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& 'S/R INI_VERTICAL_GRID: Vert. grid spacing MUST BE > 0' |
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CALL PRINT_ERROR( msgBuf , 1) |
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STOP 'ABNORMAL END: S/R INI_VERTICAL_GRID' |
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ENDIF |
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ENDDO |
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|
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C- Calculate depths of interfaces and centers |
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rF(1) = Ro_SeaLevel |
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DO K=1,Nr |
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drF(K) = delR(K) |
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rF(K+1) = rF(K) + rkSign*delR(K) |
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ENDDO |
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drC(1) = delR(1) * 0.5 _d 0 |
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rC(1) = rf(1) + rkSign*delR(1) * 0.5 _d 0 |
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DO K=2,Nr |
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drC(K) = 0.5 _d 0 *(delR(K-1)+delR(K)) |
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rC(K) = rC(K-1) + rkSign*drC(K) |
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ENDDO |
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C-- |
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ENDIF |
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C- Calculate reciprol vertical grid spacing : |
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DO K=1,Nr |
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recip_drC(K) = 1. _d 0/drC(K) |
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recip_drF(K) = 1. _d 0/drF(K) |
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ENDDO |
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|
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_END_MASTER(myThid) |
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_BARRIER |
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|
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RETURN |
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END |
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