Code to create file with indexes used to map observation lat, lon onto FV3 grid. Currently coded for SMAP and IMS.

Namelist options:

tile_dim - model resolution otype - filename stub for orography files (something like "oro_C384.mx025") orog_path - path to orography files tile_path - path to grid files obs_source - observation resolution (either "IMS4km" or "IMS24km" for IMS, or "SMAP9km" coord_path - path to file with observation lat lon files.

On hera: smap_coord_path = "/scratch2/NCEPDEV/land/data/DA/soil_moisture/SMAP/fix_coords/" (coordinate file is: "NSIDC0772_LatLon_EASE2_M09km_v1.0.nc")

ims_coord_path = "/scratch2/NCEPDEV/land/data/DA/snow_ice_cover/IMS/fix_coords/" (coordinate files are: imslat_4km_8bytes.bin imslon_4km_8bytes.bin for IMS4km)

-above IMS lat lon files are created by Youlong. Note that the converted data has changed lat from its original north-south to south-north. Such a change leads to a consistentency with the original ims ascii file (south-north).

To compile on hera:

source mods_bash use build.sh.

To submit:
change account in submit_mapping to your account.

sbatch submit_mapping.sh

Mike Barlage, Clara Draper, Youlong Xia.