/[MITgcm]/MITgcm_contrib/eh3/llc/ecco-godae/README
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Revision 1.4 - (hide annotations) (download)
Tue Mar 6 20:47:49 2007 UTC (18 years, 4 months ago) by heimbach
Branch: MAIN
Changes since 1.3: +16 -0 lines
Add some doc to setup

1 edhill 1.1
2 heimbach 1.2 LAT-LON-Polar-Cap setup
3     -----------------------
4     ed@eh3.com, cnh@mit.edu, heimbach@mit.edu
5    
6     Setup code/, input/
7     -------------------
8 edhill 1.1 Note that the *.mitgrid files must be named using the following pattern
9     or they will not be read correctly by MITgcm:
10    
11     cd run
12 heimbach 1.3 for i in 1 2 3 4 5 6; do
13 edhill 1.1 ln -s ../input/llc_p90_${i}.mitgrid tile00${i}.mitgrid
14     done
15    
16 heimbach 1.3 Change topology:
17    
18     cd MITgcm/utils/exch2/matlab-topology-generator/
19    
20     modify matlab script driver_llc.m
21     line
22     nr = 360; ng = 90; nb = 90; tnx=90;tny=90;
23     to (e.g.)
24     nr = 360; ng = 90; nb = 90; tnx=30;tny=30;
25     run script
26    
27     This generates routine and header
28     w2_e2setup.F
29     W2_EXCH2_TOPOLOGY.h
30     which need to go in code/
31    
32     Accordingly, bathy.0??.0??.data need changing.
33    
34     N.B. Domain decomposition nPy not active with exch2, i.e.
35     possible decomps are (for orig. with 17 tiles):
36     sNx = 90 30 90 30
37     sNy = 90 30 90 30
38     nSx = 17 17 1 1
39     nSy = 1 1 1 1
40     nPx = 1 9 17 153
41     nPy = 1 1 1 1
42    
43     I've generated artificial tile #18 with all zeros
44     blanklist.txt needs to be generated by hand.
45     Not clear how many procs to invoke in presence of blank list.
46    
47 heimbach 1.2 Setup code_15lev/, input_15lev/
48     -------------------------------
49    
50 heimbach 1.3 * Real bathymetry, 15 vertical levels,
51     * monthly climatological forcing via exf package, uses
52     4x4 deg. fields with on-the-fly interpolation
53 heimbach 1.2 * Bathymetry is generated via script ... in ...
54     * Initial conditions for T, S are generated via script ... in ...
55    
56     All input fields can be downloaded using script input_15lev/prepare_run
57     (which also contains link pattern to standard tile00${i}.mitgrid fields),
58     then link to run directory.
59    
60 heimbach 1.4 Setup code_50lev/, input_50lev/
61     -------------------------------
62    
63     * Based on ETOPO2 bathy,
64     * 50 vertical level exactly matching high_res_cube (ECCO2), incl. partial cell params.
65     * forced by 6-hourly NCEP atmos. state, uses original reduced Gaussian grid
66     and exf interpolation on-the-fly
67     * initial conditions generated via scripts in
68     MITgcm_contrib/eh3/llc/ecco-godae/climatology/
69     resulting fields are
70     llc90x90x360_50lev_ptemp.bin, llc90x90x360_50lev_salt.bin
71     these fields are run are run with a diffusion/conv.adj. setup of MITgcm
72     for 10 days to remove some instabilities
73     * input fields can be obtained at
74     http://channel.mit.edu/datasets/MITgcm_input_files/MITgcm_contrib/eh3/llc/ecco-godae/data_50lev/

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