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C $Header: /usr/local/gcmpack/MITgcm/model/src/ini_grid.F,v 1.14 2003/11/23 04:19:11 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: INI_GRID |
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C !INTERFACE: |
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SUBROUTINE INI_GRID( myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE INI_GRID |
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C | o Initialise model grid |
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C *==========================================================* |
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C | These arrays are used throughout the code in evaluating |
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C | gradients, integrals and spatial avarages. This routine |
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C | is called separately by each thread and initialise only |
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C | the region of the domain it is "responsible" for. |
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C | Notes: |
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C | Two examples are shown in this code. One illustrates the |
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C | initialisation of a cartesian grid. The other shows the |
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C | inialisation of a spherical polar grid. Other orthonormal |
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C | grids can be fitted into this design. In this case |
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C | custom metric terms also need adding to account for the |
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C | projections of velocity vectors onto these grids. |
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C | The structure used here also makes it possible to |
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C | implement less regular grid mappings. In particular |
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C | o Schemes which leave out blocks of the domain that are |
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C | all land could be supported. |
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C | o Multi-level schemes such as icosohedral or cubic |
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C | grid projectedions onto a sphere can also be fitted |
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C | within the strategy we use. |
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C | Both of the above also require modifying the support |
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C | routines that map computational blocks to simulation |
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C | domain blocks. |
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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_GRID |
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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 msgBuf - Used for informational I/O. |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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#ifdef ALLOW_EXF |
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INTEGER i, j, bi, bj |
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#endif /* ALLOW_EXF */ |
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CEOP |
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|
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C-- Set up vertical grid and coordinate system |
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CALL INI_VERTICAL_GRID( myThid ) |
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|
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C-- Set up horizontal grid and coordinate system |
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IF ( usingCartesianGrid ) THEN |
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CALL INI_CARTESIAN_GRID( myThid ) |
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ELSEIF ( usingSphericalPolarGrid ) THEN |
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CALL INI_SPHERICAL_POLAR_GRID( myThid ) |
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ELSEIF ( usingCurvilinearGrid ) THEN |
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CALL INI_CURVILINEAR_GRID( myThid ) |
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ELSE |
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_BEGIN_MASTER(myThid) |
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WRITE(msgBuf,'(A)') |
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& 'S/R INI_GRID: No grid coordinate system has been selected' |
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CALL PRINT_ERROR( msgBuf , myThid) |
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STOP 'ABNORMAL END: S/R INI_GRID' |
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_END_MASTER(myThid) |
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ENDIF |
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|
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#ifdef ALLOW_EXF |
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C-- exf_interp assumes that 0 <= xG, xC <= 360 |
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C This is a quick fix until this assumption is relaxed |
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C and the interpolation weights are pre-computed. |
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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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IF ( xG(I,J,bi,bj) .LT. 0 ) |
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& xG(I,J,bi,bj) = xG(I,J,bi,bj) + 360 |
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IF ( xC(I,J,bi,bj) .LT. 0 ) |
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& xC(I,J,bi,bj) = xC(I,J,bi,bj) + 360 |
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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 /* ALLOW_EXF */ |
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|
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C-- Write certain grid data to files (useful for creating netCDF |
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C and general post-analysis) |
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CALL WRITE_FLD_XY_RS( 'XC',' ',XC,0,myThid) |
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CALL WRITE_FLD_XY_RS( 'YC',' ',YC,0,myThid) |
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CALL WRITE_FLD_XY_RS( 'XG',' ',XG,0,myThid) |
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CALL WRITE_FLD_XY_RS( 'YG',' ',YG,0,myThid) |
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CALL WRITE_FLD_XY_RS( 'RAC',' ',rA,0,myThid) |
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CALL WRITE_FLD_XY_RS( 'RAW',' ',rAw,0,myThid) |
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CALL WRITE_FLD_XY_RS( 'RAS',' ',rAs,0,myThid) |
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CALL WRITE_FLD_XY_RS( 'DXG',' ',DXG,0,myThid) |
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CALL WRITE_FLD_XY_RS( 'DYG',' ',DYG,0,myThid) |
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CALL WRITE_FLD_XY_RS( 'DXC',' ',DXC,0,myThid) |
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CALL WRITE_FLD_XY_RS( 'DYC',' ',DYC,0,myThid) |
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|
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C-- Print out statistics of each horizontal grid array (helps when debugging) |
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|
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#ifdef ALLOW_MONITOR |
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CALL MON_PRINTSTATS_RS(1,XC,'XC',myThid) |
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CALL MON_PRINTSTATS_RS(1,XG,'XG',myThid) |
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CALL MON_PRINTSTATS_RS(1,DXC,'DXC',myThid) |
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CALL MON_PRINTSTATS_RS(1,DXF,'DXF',myThid) |
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CALL MON_PRINTSTATS_RS(1,DXG,'DXG',myThid) |
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CALL MON_PRINTSTATS_RS(1,DXV,'DXV',myThid) |
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CALL MON_PRINTSTATS_RS(1,YC,'YC',myThid) |
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CALL MON_PRINTSTATS_RS(1,YG,'YG',myThid) |
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CALL MON_PRINTSTATS_RS(1,DYC,'DYC',myThid) |
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CALL MON_PRINTSTATS_RS(1,DYF,'DYF',myThid) |
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CALL MON_PRINTSTATS_RS(1,DYG,'DYG',myThid) |
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CALL MON_PRINTSTATS_RS(1,DYU,'DYU',myThid) |
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CALL MON_PRINTSTATS_RS(1,RA,'RA',myThid) |
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CALL MON_PRINTSTATS_RS(1,RAW,'RAW',myThid) |
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CALL MON_PRINTSTATS_RS(1,RAS,'RAS',myThid) |
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CALL MON_PRINTSTATS_RS(1,RAZ,'RAZ',myThid) |
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#endif |
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|
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RETURN |
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END |
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