[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
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Reporter: george.gayno@… | Owner: george.gayno@…
Type: task | Status: new
Priority: major | Milestone:
Component: component1 | Version:
Resolution: | Keywords:
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Comment (by george.gayno@…):
'''r96300'''
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
yet.
*
[https://svnemc.ncep.noaa.gov/trac/fv3gfs/browser/branches/cycle_fv3/global_shared.v15.0.0/sorc/global_cycle.fd/cycle.f?rev=96300
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
[https://svnemc.ncep.noaa.gov/trac/fv3gfs/browser/branches/cycle_fv3/global_shared.v15.0.0/sorc/global_cycle.fd/read_write_data.f90?rev=96300#L347
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.
*
[https://svnemc.ncep.noaa.gov/trac/fv3gfs/browser/branches/cycle_fv3/global_shared.v15.0.0/sorc/global_cycle.fd/sfcsub.f?rev=96300
sfcsub.f] - Removed references to obsolete routine `gaulat`, which
computed gaussian latitudes.
*
[https://svnemc.ncep.noaa.gov/trac/fv3gfs/browser/branches/cycle_fv3/global_shared.v15.0.0/sorc/global_cycle.fd/read_write_data.f90?rev=96300
read_write_data.f90] - New module that contains a routine
([https://svnemc.ncep.noaa.gov/trac/fv3gfs/browser/branches/cycle_fv3/global_shared.v15.0.0/sorc/global_cycle.fd/read_write_data.f90?rev=96300#L10
WRITE_DATA]) to write output surface data to a 'warm' netcdf restart file.
Only partially complete. Includes a routine
([https://svnemc.ncep.noaa.gov/trac/fv3gfs/browser/branches/cycle_fv3/global_shared.v15.0.0/sorc/global_cycle.fd/read_write_data.f90?rev=96300#L347
READ_LAT_LON_OROG]) to read the lat/lon and orography on the target cubed-
sphere tile. Also includes a routine
([https://svnemc.ncep.noaa.gov/trac/fv3gfs/browser/branches/cycle_fv3/global_shared.v15.0.0/sorc/global_cycle.fd/read_write_data.f90?rev=96300#L483
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.
*
[https://svnemc.ncep.noaa.gov/trac/fv3gfs/browser/branches/cycle_fv3/global_shared.v15.0.0/run_cycle_wcoss.sh?rev=96300
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>
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