/[MITgcm]/MITgcm/verification/aim.5l_Equatorial_Channel/README
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revision 1.1.2.1 by cnh, Tue Jan 30 18:15:33 2001 UTC revision 1.5 by jmc, Mon Mar 10 01:35:16 2014 UTC
# Line 1  Line 1 
1  Five level intermediate atmospheric physics example.  Five level intermediate atmospheric physics example.
2  Experimental configuration is an equatorial channel,   Experimental configuration is an equatorial channel
3  +/- 30 degrees wide with a warm pool SST anomaly   of 65 degrees wide cented on the Equator. A warm SST anomaly
4  extending over twenty degrees zonally and +/- 10   with a gaussian shape is defined at the center of the domain
5  degrees meridionally.   with an extension of ~30 degrees meridionally and ~60 degrees
6     zonally.
7    
8    The local copy of S/R aim_surf_bc.F (in code directory) provide
9    a) the SST field (hard coded).
10    b) the time in the year is fixed and corresponds to the spring equinox;
11     this ensures a symetric forcing between N & S hemispheres.
12    The model uses the standard 5-level vertical resolution of the Speedy_v23
13     code; the horizontal resolution is 2.8125 with 128x23 grid points.
14    
15    ====================================================================
16    
17    Configure and compile the code:
18      cd build
19      ../../../tools/genmake2 -mods ../code [-of my_platform_optionFile]
20      make depend
21      make
22      cd ..
23    
24    To run:
25      cd run
26      ln -s ../input/* .
27      ln -s ../build/mitgcmuv .
28      ./mitgcmuv > output.txt
29      cd ..
30    
31    There is comparison output in the directory:
32      results/output.txt
33    
34    ---------------------------
35    Notes:
36    * To produce a short test that is relevant for the Atmosphere physics part,
37      a restart file (pickup.0000051840) is included. The model reaches
38      a statistical equilibrium after 1 year.
39    * the file aim_SST.* contains the SST field.
40    * Since aim pkg uses arrays with MAX_NO_THREADS as dimension, the maximum
41      number of treads is set to 1 (in code/EEPARAMS.h) instead of 32, so that the
42      size of the executable is reduced. This obviously needs to be changed
43      before compiling on a multi-threaded platform.
44    ---------------------------
45    Northern boundary :
46    o initially, the domain (SIZE.h) 128x24x5 with a land line as the Northern
47      boundary, reduciong the effective domain to 128x23x5.
48    o To have a more efficient code (and a good starting point for MIT Atmos.
49      Physics), the new domain (SIZE.h) is now 128x23x5 .
50      Northern and Southern boundaries are "closed" like the in Lat-Lon set-up.

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