/[MITgcm]/MITgcm_contrib/eh3/llc/ecco-godae/README

Diff of /MITgcm_contrib/eh3/llc/ecco-godae/README

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-revision 1.2 by heimbach,
Mon Nov 13 17:19:06 2006 UTC
+revision 1.5 by heimbach,
Wed Mar 28 18:29:45 2007 UTC
 Line 9 
 Note that the *.mitgrid files must be na
  or they will not be read correctly by MITgcm:
    cd run
-   for i in 1 2 3 4 5 ; do
+   for i in 1 2 3 4 5 6; do
      ln -s ../input/llc_p90_${i}.mitgrid tile00${i}.mitgrid
    done
+ Change topology:
+ cd MITgcm/utils/exch2/matlab-topology-generator/
+ modify matlab script driver.m
+ line
+ nr = 360; ng = 90; nb = 90; tnx=90;tny=90;
+ to (e.g.)
+ nr = 360; ng = 90; nb = 90; tnx=45;tny=45;
+ for compact format, set
+ mapIO=1
+ make sure blanklist.txt is correct
+ (or empty, if no tiles to be omitted)
+ then run driver.m
+ This generates routine and header
+ w2_e2setup.F
+ W2_EXCH2_TOPOLOGY.h
+ which need to go in code/
+ Accordingly, bathy.0??.0??.data need changing.
+ N.B. Domain decomposition nPy not active with exch2, i.e.
+ possible decomps are (for orig. with 17 tiles):
+ sNx = 90 30 90  30
+ sNy = 90 30 90  30
+ nSx = 17 17  1   1
+ nSy =  1  1  1   1
+ nPx =  1  9 17 153
+ nPy =  1  1  1   1
+ I've generated artificial tile #18 with all zeros
+ blanklist.txt needs to be generated by hand.
  Setup code_15lev/, input_15lev/
  -------------------------------
- Real bathymetry, 15 vertical levels,
+ * Real bathymetry, 15 vertical levels,
- monthly climatological forcing via exf package.
+ * monthly climatological forcing via exf package, uses
+x4 deg. fields with on-the-fly interpolation
  * Bathymetry is generated via script ... in ...
  * Initial conditions for T, S are generated via script ... in ...
-Line 25 
 All input fields can be downloaded using
+Line 60 
 All input fields can be downloaded using
  (which also contains link pattern to standard tile00${i}.mitgrid fields),
  then link to run directory.
+ Setup code_50lev/, input_50lev/
+ -------------------------------
+ * Based on ETOPO2 bathy,
+ * 50 vertical level exactly matching high_res_cube (ECCO2), incl. partial cell params.
+ * forced by 6-hourly NCEP atmos. state, uses original reduced Gaussian grid
+   and exf interpolation on-the-fly
+ * initial conditions generated via scripts in
+   MITgcm_contrib/eh3/llc/ecco-godae/climatology/
+   resulting fields are
+   llc90x90x360_50lev_ptemp.bin, llc90x90x360_50lev_salt.bin
+   these fields are run are run with a diffusion/conv.adj. setup of MITgcm
+   for 10 days to remove some instabilities
+ * input fields can be obtained at
+   http://channel.mit.edu/datasets/MITgcm_input_files/MITgcm_contrib/eh3/llc/ecco-godae/data_50lev/
+ Required input to generate bathy & initial conditions:
+ (1)
+ (in directory input/ )
+ llc_p90_1.nc
+ llc_p90_2.nc
+ llc_p90_3.nc
+ llc_p90_4.nc
+ llc_p90_5.nc
+ llc_p90_6.nc
+ (2)
+ ETOPO2.raw.bin
+ (3)
+ directory CLIMannual/
+ Generation steps:
+) run script "gen_bathy"
+    Input:
+    -----
+ llc_p90_1.nc
+ llc_p90_2.nc
+ llc_p90_3.nc
+ llc_p90_4.nc
+ llc_p90_5.nc
+ llc_p90_6.nc
+    Output:
+    -----
+ llc_p90_bathy.f001.nc
+ llc_p90_bathy.f002.nc
+ llc_p90_bathy.f003.nc
+ llc_p90_bathy.f004.nc
+ llc_p90_bathy.f005.nc
+) run script "gen_initial_cond_50_lev"
+    Input:
+    -----
+ (a) above llc_p90_*.nc
+ (b) orig. climatology fields in CLIMannual/
+    Output:
+    -----
+) run script "t18_to_global_inputs.m"
+) run script "fill_shallow_regions_and_isolated_basins.m"

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