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