/[MITgcm]/MITgcm/model/src/ini_cartesian_grid.F
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revision 1.4 by cnh, Mon May 25 18:01:32 1998 UTC revision 1.9 by cnh, Mon Nov 2 03:34:11 1998 UTC
# Line 63  C     zLower   upper and lower faces. Line 63  C     zLower   upper and lower faces.
63  C     I,J,K  C     I,J,K
64        _RL    xG, yG, zG        _RL    xG, yG, zG
65        _RL    phi        _RL    phi
66        _RL    zUpper(Nz), zLower(Nz)        _RL    zUpper(Nr), zLower(Nr)
67        _RL    xBase, yBase        _RL    xBase, yBase
68        INTEGER iG, jG        INTEGER iG, jG
69        INTEGER bi, bj        INTEGER bi, bj
# Line 75  C     This operation is only performed a Line 75  C     This operation is only performed a
75  C     complex configurations it is usually OK to pass iG, jG to a custom  C     complex configurations it is usually OK to pass iG, jG to a custom
76  C     function and have it return xG and yG.  C     function and have it return xG and yG.
77  C     Set up my local grid first  C     Set up my local grid first
78          xC0 = 0. _d 0
79          yC0 = 0. _d 0
80        DO bj = myByLo(myThid), myByHi(myThid)        DO bj = myByLo(myThid), myByHi(myThid)
81         jG = myYGlobalLo + (bj-1)*sNy         jG = myYGlobalLo + (bj-1)*sNy
82         DO bi = myBxLo(myThid), myBxHi(myThid)         DO bi = myBxLo(myThid), myBxHi(myThid)
# Line 141  C     dxC, dyC is separation between cel Line 143  C     dxC, dyC is separation between cel
143         DO bi = myBxLo(myThid), myBxHi(myThid)         DO bi = myBxLo(myThid), myBxHi(myThid)
144          DO J=1,sNy          DO J=1,sNy
145           DO I=1,sNx           DO I=1,sNx
146            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
147            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
148           ENDDO           ENDDO
149          ENDDO          ENDDO
150         ENDDO         ENDDO
151        ENDDO        ENDDO
152        _EXCH_XY_R4(dxC, myThid )        _EXCH_XY_R4(dxC, myThid )
153        _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 )  
154  C     Calculate vertical face area  C     Calculate vertical face area
155        DO bj = myByLo(myThid), myByHi(myThid)        DO bj = myByLo(myThid), myByHi(myThid)
156         DO bi = myBxLo(myThid), myBxHi(myThid)         DO bi = myBxLo(myThid), myBxHi(myThid)
157          DO J=1,sNy          DO J=1,sNy
158           DO I=1,sNx           DO I=1,sNx
159            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)
160           ENDDO            tanPhiAtU(I,J,bi,bj) = 0. _d 0
161          ENDDO            tanPhiAtV(I,J,bi,bj) = 0. _d 0
        ENDDO  
       ENDDO  
   
       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  
162           ENDDO           ENDDO
163          ENDDO          ENDDO
164         ENDDO         ENDDO
165        ENDDO        ENDDO
166  C     Now sync. and get/send edge regions that are shared with        _EXCH_XY_R4 (rA       , myThid )
167  C     other threads.        _EXCH_XY_R4 (tanPhiAtU , myThid )
168        _EXCH_XYZ_R4(rHFacC    , myThid )        _EXCH_XY_R4 (tanPhiAtV , 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 )  
169    
170  C  C
171        RETURN        RETURN
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