/[MITgcm]/MITgcm/verification/hs94.1x64x5/code/ini_theta.F
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Contents of /MITgcm/verification/hs94.1x64x5/code/ini_theta.F

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Revision 1.2 - (show annotations) (download)
Fri Feb 2 21:36:34 2001 UTC (23 years, 3 months ago) by adcroft
Branch: MAIN
Changes since 1.1: +108 -0 lines
Merged changes from branch "branch-atmos-merge" into MAIN (checkpoint34)
 - substantial modifications to algorithm sequence (dynamics.F)
 - packaged OBCS, Shapiro filter, Zonal filter, Atmospheric Physics

1 C $Header: /u/gcmpack/models/MITgcmUV/verification/hs94.1x64x5/code/Attic/ini_theta.F,v 1.1.2.1 2001/01/23 16:23:06 adcroft Exp $
2
3 #include "CPP_OPTIONS.h"
4
5 CStartOfInterface
6 SUBROUTINE INI_THETA( myThid )
7 C /==========================================================\
8 C | SUBROUTINE INI_THETA |
9 C | o Set model initial temperature field. |
10 C |==========================================================|
11 C | There are several options for setting the initial |
12 C | temperature file |
13 C | 1. Inline code |
14 C | 2. Vertical profile ( uniform T in X and Y ) |
15 C | 3. Three-dimensional data from a file. For example from |
16 C | Levitus or from a checkpoint file from a previous |
17 C | integration. |
18 C | In addition to setting the temperature field we also |
19 C | set the initial temperature tendency term here. |
20 C \==========================================================/
21 IMPLICIT NONE
22
23 C === Global variables ===
24 #include "SIZE.h"
25 #include "EEPARAMS.h"
26 #include "PARAMS.h"
27 #include "GRID.h"
28 #include "DYNVARS.h"
29
30 C == Routine arguments ==
31 C myThid - Number of this instance of INI_THETA
32 INTEGER myThid
33 CEndOfInterface
34
35 C == Local variables ==
36 C bi,bj - Loop counters
37 C I,J,K
38 INTEGER bi, bj
39 INTEGER I, J, K, localWarnings
40 _RL term1,term2,thetaLim,thetaEq
41 _RL thKappa,rSurf
42 CHARACTER*(MAX_LEN_MBUF) msgBuf
43
44 _BARRIER
45
46 IF ( hydrogThetaFile .EQ. ' ' ) THEN
47 C-- Initialise temperature field to Held & Saurez equilibrium theta
48 DO bj = myByLo(myThid), myByHi(myThid)
49 DO bi = myBxLo(myThid), myBxHi(myThid)
50 DO K=1,Nr
51 rSurf=1.E5
52 thKappa = 2./7.
53 thetaLim = 200. / ((rC(K)/rSurf)**thKappa)
54 C thetaLim = 170. / ((rC(K)/rSurf)**thKappa)
55 DO J=1,sNy
56 term1=60.*(sin(yC(1,J,bi,bj)*deg2rad)**2)
57 term2=10.*log((rC(K)/rSurf))
58 & *(cos(yC(1,J,bi,bj)*deg2rad)**2)
59 thetaEq=315.-term1-term2
60 DO I=1,sNx
61 theta(I,J,K,bi,bj) = MAX( thetaLim, thetaEq )
62 C theta(I,J,K,bi,bj) = tRef(K)
63 ENDDO
64 ENDDO
65 ENDDO
66 ENDDO
67 ENDDO
68 ELSE
69 _BEGIN_MASTER( myThid )
70 CALL READ_FLD_XYZ_RL( hydrogThetaFile, ' ', theta, 0, myThid )
71 _END_MASTER(myThid)
72 ENDIF
73 C Set initial tendency terms
74 localWarnings=0
75 DO bj = myByLo(myThid), myByHi(myThid)
76 DO bi = myBxLo(myThid), myBxHi(myThid)
77 DO K=1,Nr
78 DO J=1,sNy
79 DO I=1,sNx
80 gt (I,J,K,bi,bj) = 0. _d 0
81 gtNM1(I,J,K,bi,bj) = 0. _d 0
82 IF (hFacC(I,J,K,bi,bj).EQ.0) theta(I,J,K,bi,bj) = 0.
83 IF (hFacC(I,J,K,bi,bj).NE.0.AND.theta(I,J,K,bi,bj).EQ.0.)
84 & THEN
85 localWarnings=localWarnings+1
86 ENDIF
87 ENDDO
88 ENDDO
89 ENDDO
90 ENDDO
91 ENDDO
92 IF (localWarnings.NE.0) THEN
93 WRITE(msgBuf,'(A,A)')
94 & 'S/R INI_THETA: theta = 0 identically. If this is intentional',
95 & 'you will need to edit ini_theta.F to avoid this safety check'
96 CALL PRINT_ERROR( msgBuf , myThid)
97 STOP 'ABNORMAL END: S/R INI_THETA'
98 ENDIF
99 C
100 _EXCH_XYZ_R8(theta , myThid )
101 _EXCH_XYZ_R8(gt , myThid )
102 _EXCH_XYZ_R8(gtNM1 , myThid )
103
104 CALL PLOT_FIELD_XYZRL( theta, 'Initial Temperature' ,
105 & Nr, 1, myThid )
106
107 RETURN
108 END

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