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1. To generate a TR “highorder” mapping file for GLL data using NCO and TempestRemap:

   1. ncremap -G ttl="lat-lon-cap-grid"#latlon=1537,3072#lat_typ=fv#lon_typ=grn_ctr -g latlon_scrip.nc

   2. GenerateCSMesh --alt --res 256 --out_format Netcdf4 --file atmgrid.g

   3. GenerateOverlapMesh --b atmgrid.g --a latlon_scrip.nc --out overlap_mesh.g

   4. GenerateOfflineMap --in_mesh atmgrid.g --out_mesh latlon_scrip.nc --ov_mesh overlap_mesh.g --in_type cgll --in_np 4 --out_type fv --out_double --out_format Netcdf4 --correct_areas --out_map map_ne256np4_to_1537x3072_highorder.nc

2. Remap a native grid EAM output file:

   1. ncremap -m map_ne256np4_to_1537x3072_highorder.nc -i casename.cam.h2.0001-02-02-00000.nc -o casename.cam.h2.0001-02-02-00000.latlon.nc

3. Compute spectra.

   1. todo: add link to “ke.ncl” scriptExample NCL script: spectra/ke-demo.ncl, on gitub: https://github.com/mt5555/nclscript