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adcroft |
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C $Header: /u/gcmpack/models/MITgcmUV/model/src/ini_depths.F,v 1.22.2.5 2001/04/13 10:55:23 cnh Exp $ |
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C $Name: $ |
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#include "CPP_OPTIONS.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 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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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 "INI_DEPTHS.h" |
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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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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 H - Depth of base of fluid from upper surface f[X,Y] (m). |
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C Hdefault - default r-coordinate of the lower boundary (=ground) |
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C (=minus(Total_depth) in the ocean model) |
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C (=Total Pressure at Sea Level in the atmos model) |
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C-------------------- |
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C NOTE: will change soon: 2 separed files for r_lower and r_surface boudaries |
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C and for the atmosphere, topography will be defined in term of height |
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C-------------------- |
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C oldPrec - Temporary used in controlling binary input dataset precision |
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INTEGER iG, jG |
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INTEGER bi, bj |
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INTEGER I, J |
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_RL Hdefault |
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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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IF (groundAtK1) THEN |
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Hdefault = Ro_SeaLevel |
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ELSE |
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Hdefault = rF(Nr+1) |
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ENDIF |
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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) = Hdefault |
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& *(1.-0.5*XC(I,J,bi,bj)/(float(Nx)*DelX(1))) |
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C Test for eastern edge |
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C IF ( iG .EQ. nX ) H(i,j,bi,bj) = 0. |
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C Test for northern edge |
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C IF ( jG .EQ. nY ) H(i,j,bi,bj) = 0. |
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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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C Read the bathymetry using the mid-level I/O pacakage read_write_rec |
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C The 0 is the "iteration" argument. The 1 is the record number. |
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CALL READ_REC_XY_RS( bathyFile, H, 1, 0, myThid ) |
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C Read the bathymetry using the mid-level I/O pacakage read_write_fld |
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C The 0 is the "iteration" argument. The ' ' is an empty suffix |
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C CALL READ_FLD_XY_RS( bathyFile, ' ', H, 0, myThid ) |
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C Read the bathymetry using the low-level I/O package |
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C CALL MDSREADFIELD( bathyFile, readBinaryPrec, |
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C & 'RS', 1, H, 1, myThid ) |
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_END_MASTER(myThid) |
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ENDIF |
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_EXCH_XY_R4( H, myThid ) |
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C |
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C CALL PLOT_FIELD_XYRS(H,'Model depths (ini_depths)',1,myThid) |
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C |
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IF (groundAtK1) THEN |
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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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R_low(I,J,bi,bj) = rF(Nr+1) |
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Ro_surf(I,J,bi,bj) = H(I,J,bi,bj) |
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IF (usingSphericalPolarGrid .AND. abs(yC(I,J,bi,bj)).GE.90. ) |
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& THEN |
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Ro_surf(I,J,bi,bj) = 0. |
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ENDIF |
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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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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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R_low(I,J,bi,bj) = H(I,J,bi,bj) |
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Ro_surf(I,J,bi,bj) = Ro_SeaLevel |
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IF (usingSphericalPolarGrid .AND. abs(yC(I,J,bi,bj)).GE.90. ) |
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& THEN |
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R_low(I,J,bi,bj) = 0. |
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ENDIF |
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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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RETURN |
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END |
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