[Ncep.list.emc.fv3gfs_tickets] FV3GFS Ticket #20: Update global_cycle to run on FV3 cubed-sphere grid

FV3GFS Trac Ticket ncep.list.emc.fv3gfs_tickets at noaa.gov
Fri Aug 4 20:38:19 UTC 2017

#20: Update global_cycle to run on FV3 cubed-sphere grid
  Reporter:  george.gayno@…  |      Owner:  george.gayno@…
      Type:  task            |     Status:  new
  Priority:  major           |  Milestone:
 Component:  component1      |    Version:
Resolution:                  |   Keywords:

Comment (by george.gayno@…):


 Numerous changes to begin conversion to run on the cubed-sphere grid.
 Only runs for a single tile right now.  And does not handle NSST fields

 cycle.f] - Removed now obsolete routines `FIXIO_R` and `FIXIO_W` which
 read/wrote the surface data from/to the OPS nemsio Gaussian restart files.
 Removed numerous unused variables. Removed computation of lat/lon on the
 model grid. Lat/lons are now read in from the 'grid' file (created by
 `make_hgrid` program) for the particular tile (in new routine
 READ_LAT_LON_OROG]). Removed references to gaussian grid and to the
 reduced grid. Removed usused routines `ZNLSFC` and `ZNLODY` which computed
 diagnostics on the gaussian grid.  In the future, new routines can be
 created to compute the diagnostics on the cubed-sphere grid, if desired.

 sfcsub.f] - Removed references to obsolete routine `gaulat`, which
 computed gaussian latitudes.

 read_write_data.f90] - New module that contains a routine
 WRITE_DATA]) to write output surface data to a 'warm' netcdf restart file.
 Only partially complete.  Includes a routine
 READ_LAT_LON_OROG]) to read the lat/lon and orography on the target cubed-
 sphere tile. Also includes a routine
 READ_SFC_NETCDF]) to read the input surface data from the 'warm' netcdf
 restart file.

 * Update build process to eliminate the dependency on the NEMSIO library
 and to add the dependency to the NETCDF library.

 run_cycle_wcoss.sh] - Temporary test script to run a case on Phase 2.

Ticket URL: <https://svnemc.ncep.noaa.gov/trac/fv3gfs/ticket/20#comment:3>
fv3gfs <https://svnemc.ncep.noaa.gov/trac/fv3gfs>
NGGPS FV3GFS Development

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