/[MITgcm]/MITgcm/model/src/ini_cartesian_grid.F
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revision 1.5 by cnh, Mon Jun 8 21:43:01 1998 UTC revision 1.12 by adcroft, Wed Dec 9 16:11:52 1998 UTC
# Line 1  Line 1 
1  C $Header$  C $Header$
2    
3  #include "CPP_EEOPTIONS.h"  #include "CPP_OPTIONS.h"
4    
5  CStartOfInterface  CStartOfInterface
6        SUBROUTINE INI_CARTESIAN_GRID( myThid )        SUBROUTINE INI_CARTESIAN_GRID( myThid )
# Line 33  C     | Under the cartesian grid mode pr Line 33  C     | Under the cartesian grid mode pr
33  C     | and Y are in metres. Disktance in Z are in m or Pa       |  C     | and Y are in metres. Disktance in Z are in m or Pa       |
34  C     | depending on the vertical gridding mode.                 |  C     | depending on the vertical gridding mode.                 |
35  C     \==========================================================/  C     \==========================================================/
36          IMPLICIT NONE
37    
38  C     === Global variables ===  C     === Global variables ===
39  #include "SIZE.h"  #include "SIZE.h"
# Line 63  C     zLower   upper and lower faces. Line 64  C     zLower   upper and lower faces.
64  C     I,J,K  C     I,J,K
65        _RL    xG, yG, zG        _RL    xG, yG, zG
66        _RL    phi        _RL    phi
67        _RL    zUpper(Nz), zLower(Nz)        _RL    zUpper(Nr), zLower(Nr)
68        _RL    xBase, yBase        _RL    xBase, yBase
69        INTEGER iG, jG        INTEGER iG, jG
70        INTEGER bi, bj        INTEGER bi, bj
# Line 143  C     dxC, dyC is separation between cel Line 144  C     dxC, dyC is separation between cel
144         DO bi = myBxLo(myThid), myBxHi(myThid)         DO bi = myBxLo(myThid), myBxHi(myThid)
145          DO J=1,sNy          DO J=1,sNy
146           DO I=1,sNx           DO I=1,sNx
147            dxC(I,J,bi,bj)    = (dxF(I,J,bi,bj)+dxF(I-1,J,bi,bj))*0.5 D0            dxC(I,J,bi,bj)    = (dxF(I,J,bi,bj)+dxF(I-1,J,bi,bj))*0.5 _d 0
148            dyC(I,J,bi,bj)    = (dyF(I,J,bi,bj)+dyF(I,J-1,bi,bj))*0.5 D0            dyC(I,J,bi,bj)    = (dyF(I,J,bi,bj)+dyF(I,J-1,bi,bj))*0.5 _d 0
149           ENDDO           ENDDO
150          ENDDO          ENDDO
151         ENDDO         ENDDO
152        ENDDO        ENDDO
153        _EXCH_XY_R4(dxC, myThid )        _EXCH_XY_R4(dxC, myThid )
154        _EXCH_XY_R4(dyC, myThid )        _EXCH_XY_R4(dyC, myThid )
 C     Calculate recipricols  
       DO bj = myByLo(myThid), myByHi(myThid)  
        DO bi = myBxLo(myThid), myBxHi(myThid)  
         DO J=1,sNy  
          DO I=1,sNx  
           rDxG(I,J,bi,bj)=1.d0/dxG(I,J,bi,bj)  
           rDyG(I,J,bi,bj)=1.d0/dyG(I,J,bi,bj)  
           rDxC(I,J,bi,bj)=1.d0/dxC(I,J,bi,bj)  
           rDyC(I,J,bi,bj)=1.d0/dyC(I,J,bi,bj)  
           rDxF(I,J,bi,bj)=1.d0/dxF(I,J,bi,bj)  
           rDyF(I,J,bi,bj)=1.d0/dyF(I,J,bi,bj)  
           rDxV(I,J,bi,bj)=1.d0/dxV(I,J,bi,bj)  
           rDyU(I,J,bi,bj)=1.d0/dyU(I,J,bi,bj)  
          ENDDO  
         ENDDO  
        ENDDO  
       ENDDO  
       _EXCH_XY_R4(rDxG, myThid )  
       _EXCH_XY_R4(rDyG, myThid )  
       _EXCH_XY_R4(rDxC, myThid )  
       _EXCH_XY_R4(rDyC, myThid )  
       _EXCH_XY_R4(rDxF, myThid )  
       _EXCH_XY_R4(rDyF, myThid )  
       _EXCH_XY_R4(rDxV, myThid )  
       _EXCH_XY_R4(rDyU, myThid )  
155  C     Calculate vertical face area  C     Calculate vertical face area
156        DO bj = myByLo(myThid), myByHi(myThid)        DO bj = myByLo(myThid), myByHi(myThid)
157         DO bi = myBxLo(myThid), myBxHi(myThid)         DO bi = myBxLo(myThid), myBxHi(myThid)
158          DO J=1,sNy          DO J=1,sNy
159           DO I=1,sNx           DO I=1,sNx
160            zA(I,J,bi,bj) = dxF(I,J,bi,bj)*dyF(I,J,bi,bj)            rA (I,J,bi,bj) = dxF(I,J,bi,bj)*dyF(I,J,bi,bj)
161           ENDDO            rAw(I,J,bi,bj) = dxC(I,J,bi,bj)*dyG(I,J,bi,bj)
162          ENDDO            rAs(I,J,bi,bj) = dxG(I,J,bi,bj)*dyC(I,J,bi,bj)
163         ENDDO            tanPhiAtU(I,J,bi,bj) = 0. _d 0
164        ENDDO            tanPhiAtV(I,J,bi,bj) = 0. _d 0
   
       DO bj = myByLo(myThid), myByHi(myThid)  
        DO bi = myBxLo(myThid), myBxHi(myThid)  
         DO K=1,Nz  
          DO J=1,sNy  
           DO I=1,sNx  
            IF (HFacC(I,J,K,bi,bj) .NE. 0. D0 ) THEN  
             rHFacC(I,J,K,bi,bj) = 1. D0 / HFacC(I,J,K,bi,bj)  
            ELSE  
             rHFacC(I,J,K,bi,bj) = 0. D0  
            ENDIF  
            IF (HFacW(I,J,K,bi,bj) .NE. 0. D0 ) THEN  
             rHFacW(I,J,K,bi,bj) = 1. D0 / HFacW(I,J,K,bi,bj)  
             maskW(I,J,K,bi,bj) = 1. D0  
            ELSE  
             rHFacW(I,J,K,bi,bj) = 0. D0  
             maskW(I,J,K,bi,bj) = 0.0 D0  
            ENDIF  
            IF (HFacS(I,J,K,bi,bj) .NE. 0. D0 ) THEN  
             rHFacS(I,J,K,bi,bj) = 1. D0 / HFacS(I,J,K,bi,bj)  
             maskS(I,J,K,bi,bj) = 1. D0  
            ELSE  
             rHFacS(I,J,K,bi,bj) = 0. D0  
             maskS(I,J,K,bi,bj) = 0. D0  
            ENDIF  
           ENDDO  
165           ENDDO           ENDDO
166          ENDDO          ENDDO
167         ENDDO         ENDDO
168        ENDDO        ENDDO
169  C     Now sync. and get/send edge regions that are shared with        _EXCH_XY_R4 (rA       , myThid )
170  C     other threads.        _EXCH_XY_R4 (rAw      , myThid )
171        _EXCH_XYZ_R4(rHFacC    , myThid )        _EXCH_XY_R4 (rAs      , myThid )
       _EXCH_XYZ_R4(rHFacW    , myThid )  
       _EXCH_XYZ_R4(rHFacS    , myThid )  
       _EXCH_XYZ_R4(maskW    , myThid )  
       _EXCH_XYZ_R4(maskS    , myThid )  
       _EXCH_XY_R4 (zA       , myThid )  
   
 CcnhDebugStarts  
       tanPhiAtU = 0. _d 0  
       tanPhiAtV = 0. _d 0  
172        _EXCH_XY_R4 (tanPhiAtU , myThid )        _EXCH_XY_R4 (tanPhiAtU , myThid )
173        _EXCH_XY_R4 (tanPhiAtV , myThid )        _EXCH_XY_R4 (tanPhiAtV , myThid )
 CcnhDebugEnds  
174    
175  C  C
176        RETURN        RETURN
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