/[MITgcm]/MITgcm/model/src/ini_depths.F
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Annotation of /MITgcm/model/src/ini_depths.F

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Revision 1.18 - (hide annotations) (download)
Tue Dec 15 00:20:34 1998 UTC (25 years, 5 months ago) by adcroft
Branch: MAIN
CVS Tags: checkpoint19, checkpoint20
Changes since 1.17: +3 -17 lines
 o Added "natural BCs" as alternative to "virtual salt flux"
 o Re-difined precFloat32 and precFloat64 to be 32 and 64
   so that their values can be meaningfuly set in the data file
 o Modified read_write.F to create an exception if readBinaryPrec
   is not set
 o Replaced CPP control of viscous BCs with run-time control
 o Tidied up input-data precision (ie. ini_depths cnh_dbg...)
 o ini_forcing.F now initialises *all* forcing arrays to zero
 o Definitively tested verification experiments 0,1,2 and 4
   (3 is atmospheric set-up which is in a state of flux)

1 adcroft 1.18 C $Header: /u/gcmpack/models/MITgcmUV/model/src/ini_depths.F,v 1.17 1998/12/09 16:11:52 adcroft Exp $
2 cnh 1.1
3 cnh 1.16 #include "CPP_OPTIONS.h"
4 cnh 1.1
5     CStartOfInterface
6     SUBROUTINE INI_DEPTHS( myThid )
7     C /==========================================================\
8     C | SUBROUTINE INI_DEPTHS |
9     C | o Initialise map of model depths |
10     C |==========================================================|
11     C | The depths of the bottom of the model is specified in |
12     C | terms of an XY map with one depth for each column of |
13     C | grid cells. Depths do not have to coincide with the |
14 cnh 1.15 C | model levels. The model lopping algorithm makes it |
15 cnh 1.1 C | possible to represent arbitrary depths. |
16     C | The mode depths map also influences the models topology |
17     C | By default the model domain wraps around in X and Y. |
18     C | This default doubly periodic topology is "supressed" |
19     C | if a depth map is defined which closes off all wrap |
20     C | around flow. |
21     C \==========================================================/
22 adcroft 1.17 IMPLICIT NONE
23 cnh 1.1
24     C === Global variables ===
25     #include "SIZE.h"
26     #include "EEPARAMS.h"
27     #include "PARAMS.h"
28     #include "GRID.h"
29    
30     C == Routine arguments ==
31     C myThid - Number of this instance of INI_DEPTHS
32     INTEGER myThid
33     CEndOfInterface
34    
35     C == Local variables ==
36     C iG, jG - Global coordinate index
37     C bi,bj - Loop counters
38     C I,J,K
39 adcroft 1.9 C phi - total depth of model
40 cnh 1.13 C oldPrec - Temporary used in controlling binary input dataset precision
41 cnh 1.1 INTEGER iG, jG
42     INTEGER bi, bj
43     INTEGER I, J, K
44 adcroft 1.9 _RL phi
45 cnh 1.1
46     _BARRIER
47 cnh 1.4 IF ( bathyFile .EQ. ' ' ) THEN
48     C Set up a flat bottom box with doubly periodic topology.
49     C H is the basic variable from which other terms are derived. It
50     C is the term that would be set from an external file for a
51     C realistic problem.
52 cnh 1.12 phi = rF(Nr+1)
53 cnh 1.4 DO bj = myByLo(myThid), myByHi(myThid)
54     DO bi = myBxLo(myThid), myBxHi(myThid)
55     DO j=1,sNy
56     DO i=1,sNx
57     iG = myXGlobalLo-1+(bi-1)*sNx+I
58     jG = myYGlobalLo-1+(bj-1)*sNy+J
59     C Default depth of full domain
60     H(i,j,bi,bj) = phi
61     C Test for eastern edge
62 adcroft 1.18 C IF ( iG .EQ. nX ) H(i,j,bi,bj) = 0.
63 cnh 1.4 C Test for northern edge
64 adcroft 1.18 C IF ( jG .EQ. nY ) H(i,j,bi,bj) = 0.
65 cnh 1.4 ENDDO
66 cnh 1.1 ENDDO
67     ENDDO
68     ENDDO
69 cnh 1.4 ELSE
70     _BEGIN_MASTER( myThid )
71     CALL READ_FLD_XY_RS( bathyFile, ' ', H, 0, myThid )
72     _END_MASTER(myThid)
73     ENDIF
74 cnh 1.14
75 cnh 1.4 _EXCH_XY_R4( H, myThid )
76 cnh 1.5 C
77 cnh 1.7 CALL PLOT_FIELD_XYRS( H, 'Model depths' , 1, myThid )
78 cnh 1.1 C
79     RETURN
80     END

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