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C $Header: /u/gcmpack/models/MITgcmUV/model/src/ini_theta.F,v 1.6 1998/06/15 05:13:56 cnh Exp $ |
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#include "CPP_EEOPTIONS.h" |
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CStartOfInterface |
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SUBROUTINE INI_THETA( myThid ) |
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C /==========================================================\ |
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C | SUBROUTINE INI_THETA | |
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C | o Set model initial temperature field. | |
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C |==========================================================| |
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C | There are several options for setting the initial | |
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C | temperature file | |
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C | 1. Inline code | |
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C | 2. Vertical profile ( uniform T in X and Y ) | |
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C | 3. Three-dimensional data from a file. For example from | |
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C | Levitus or from a checkpoint file from a previous | |
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C | integration. | |
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C | In addition to setting the temperature field we also | |
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C | set the initial temperature tendency term here. | |
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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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#include "DYNVARS.h" |
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C == Routine arguments == |
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C myThid - Number of this instance of INI_THETA |
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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 iC, jC - Center of domain |
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C iD, jD - Disitance from domain center. |
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C rad - Radius of initial patch |
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C rD - Radial displacement of point I,J |
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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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INTEGER iC, jC, iD, jD |
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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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REAL rad, rD |
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_BARRIER |
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|
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IF ( hydrogThetaFile .EQ. ' ' ) THEN |
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C-- Example 1 |
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C-- Initialise temperature field to a circular patch. |
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iC = Nx/2 |
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jC = Ny/2 |
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rad = MIN(Ny/8,Nx/8) |
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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 K=1,Nz |
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DO J=1,sNy |
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DO I=1,sNx |
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theta(I,J,K,bi,bj) = 0. _d 0 |
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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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iD = iG-iC |
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jD = jG-jC |
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rD = SQRT(FLOAT(iD*iD+jD*jD)) |
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IF ( rD .LT. rad ) theta(I,J,K,bi,bj) = 1. _d 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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ENDDO |
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C-- Example 2 |
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C-- Initialise temperature field to the vertical reference profile |
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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 K=1,Nz |
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DO J=1,sNy |
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DO I=1,sNx |
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theta(I,J,K,bi,bj) = tRef(K) |
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ENDDO |
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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_XYZ_RL( hydrogThetaFile, ' ', theta, 0, myThid ) |
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_END_MASTER(myThid) |
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ENDIF |
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C Set initial tendency terms |
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C Note: gTNm1 is set to initial theta to make it consistent with |
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C the theta* scheme used. |
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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 K=1,Nz |
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DO J=1,sNy |
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DO I=1,sNx |
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gt (I,J,K,bi,bj) = 0. _d 0 |
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gtNM1(I,J,K,bi,bj) = theta(I,J,K,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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ENDDO |
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C |
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_EXCH_XYZ_R8(theta , myThid ) |
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_EXCH_XYZ_R8(gt , myThid ) |
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_EXCH_XYZ_R8(gtNM1 , myThid ) |
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|
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CALL PLOT_FIELD_XYZRL( theta, 'Initial Temperature' , Nz, 1, myThid ) |
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|
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RETURN |
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END |
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