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C $Header: /u/gcmpack/models/MITgcmUV/model/src/ini_depths.F,v 1.9 1998/07/02 15:46:21 adcroft Exp $ |
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#include "CPP_EEOPTIONS.h" |
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CStartOfInterface |
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SUBROUTINE INI_DEPTHS( myThid ) |
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C /==========================================================\ |
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C | SUBROUTINE INI_DEPTHS | |
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C | o Initialise map of model depths | |
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C |==========================================================| |
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C | The depths of the bottom of the model is specified in | |
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C | terms of an XY map with one depth for each column of | |
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C | grid cells. Depths do not have to coincide with the | |
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C | model levels. The model's lopping algorithm makes it | |
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C | possible to represent arbitrary depths. | |
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C | The mode depths map also influences the models topology | |
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C | By default the model domain wraps around in X and Y. | |
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C | This default doubly periodic topology is "supressed" | |
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C | if a depth map is defined which closes off all wrap | |
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C | around flow. | |
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C \==========================================================/ |
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|
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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 == 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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CEndOfInterface |
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|
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C == Local variables == |
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C iG, jG - Global coordinate index |
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C bi,bj - Loop counters |
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C I,J,K |
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C phi - total depth of model |
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INTEGER iG, jG |
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INTEGER bi, bj |
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INTEGER I, J, K |
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_RL phi |
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|
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_BARRIER |
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IF ( bathyFile .EQ. ' ' ) THEN |
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C Set up a flat bottom box with doubly periodic topology. |
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C H is the basic variable from which other terms are derived. It |
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C is the term that would be set from an external file for a |
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C realistic problem. |
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phi = zFace(nZ+1) |
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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,sNy |
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DO i=1,sNx |
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iG = myXGlobalLo-1+(bi-1)*sNx+I |
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jG = myYGlobalLo-1+(bj-1)*sNy+J |
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C Default depth of full domain |
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H(i,j,bi,bj) = phi |
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C Test for eastern edge |
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IF ( iG .EQ. nX ) H(i,j,bi,bj) = 0. |
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C Test for northern edge |
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IF ( jG .EQ. nY ) H(i,j,bi,bj) = 0. |
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C Island |
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IF ( iG .EQ. 1 .AND. |
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& jG .EQ. 24 ) H(i,j,bi,bj) = 0.75*phi |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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ELSE |
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_BEGIN_MASTER( myThid ) |
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CALL READ_FLD_XY_RS( bathyFile, ' ', H, 0, myThid ) |
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_END_MASTER(myThid) |
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C-- Reverse sign if necessary (We assume H>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 j=1,sNy |
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DO i=1,sNx |
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H(i,j,bi,bj)=-H(i,j,bi,bj) |
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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 |
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_EXCH_XY_R4( H, myThid ) |
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C |
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CALL PLOT_FIELD_XYRS( H, 'Model depths' , 1, myThid ) |
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C |
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RETURN |
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END |
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