/[MITgcm]/MITgcm/model/src/ini_grid.F
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Contents of /MITgcm/model/src/ini_grid.F

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Revision 1.1 - (show annotations) (download)
Wed Apr 22 19:15:30 1998 UTC (26 years, 1 month ago) by cnh
Branch: MAIN
Branch point for: cnh
Initial revision

1 C $Id$
2
3 #include "CPP_EEOPTIONS.h"
4
5 CStartOfInterface
6 SUBROUTINE INI_GRID( myThid )
7 C /==========================================================\
8 C | SUBROUTINE INI_GRID |
9 C | o Initialise model grid |
10 C |==========================================================|
11 C | These arrays are used throughout the code in evaluating |
12 C | gradients, integrals and spatial avarages. This routine |
13 C | is called separately by each thread and initialise only |
14 C | the region of the domain it is "responsible" for. |
15 C | Notes: |
16 C | Two examples are shown in this code. One illustrates the |
17 C | initialisation of a cartesian grid. The other shows the |
18 C | inialisation of a spherical polar grid. Other orthonormal|
19 C | grids can be fitted into this design. In this case |
20 C | custom metric terms also need adding to account for the |
21 C | projections of velocity vectors onto these grids. |
22 C | The structure used here also makes it possible to |
23 C | implement less regular grid mappings. In particular |
24 C | o Schemes which leave out blocks of the domain that are |
25 C | all land could be supported. |
26 C | o Multi-level schemes such as icosohedral or cubic |
27 C | grid projectedions onto a sphere can also be fitted |
28 C | within the strategy we use. |
29 C | Both of the above also require modifying the support |
30 C | routines that map computational blocks to simulation |
31 C | domain blocks. |
32 C \==========================================================/
33
34 C === Global variables ===
35 #include "SIZE.h"
36 #include "EEPARAMS.h"
37 #include "PARAMS.h"
38 #include "GRID.h"
39
40 C == Routine arguments ==
41 C myThid - Number of this instance of INI_GRID
42 INTEGER myThid
43 CEndOfInterface
44
45 C == Local variables ==
46 C msgBuf - Used for informational I/O.
47 CHARACTER*(MAX_LEN_MBUF) msgBuf
48
49 C-- Set up grid coordinate system
50 IF ( usingCartesianGrid ) THEN
51 CALL INI_CARTESIAN_GRID( myThid )
52 ELSEIF ( usingSphericalPolarGrid ) THEN
53 CALL INI_SPHERICAL_POLAR_GRID( myThid )
54 ELSE
55 _BEGIN_MASTER(myThid)
56 WRITE(msgBuf,'(A)')
57 & 'S/R INI_GRID: No grid coordinate system has been selected'
58 CALL PRINT_ERROR( msgBuf , myThid)
59 STOP 'ABNORMAL END: S/R INI_GRID'
60 _END_MASTER(myThid)
61 ENDIF
62 C
63 RETURN
64 END
65
66 C $Id: $

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