[Ncep.list.emc.fv3gfs_tickets] FV3GFS Ticket #11: Cycling workflow.
FV3GFS Trac Ticket
ncep.list.emc.fv3gfs_tickets at noaa.gov
Tue Jul 25 21:01:06 UTC 2017
#11: Cycling workflow.
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Reporter: | Owner: fanglin.yang@…
rahul.mahajan@… | Status: reopened
Type: | Milestone:
enhancement | Version:
Priority: major | Keywords:
Component: component1 | workflow,scripting,cycling,utilities
Resolution: |
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Comment (by rahul.mahajan@…):
'''r96034'''
It was discovered that the surface fields were not being updated despite
passing correct filenames for SST, snow and ice because the update
frequency in the '''&namsfc_nml''' section of the namelist was set to
99999, which implies cycle within the model.
Changes were made following discussions with George.Gayno and
Fanglin.Yang. It is still unclear how the {{{sfcsub.f}}} will handle the
update for a forecast longer than 24hrs; i.e. will the model nudge/adjust
the surface fields from the files passed for all times and not just the
initialization time. George.Gayno has offered to investigate this in the
GFS cycle with a 10day forecast.
The new settings are appropriate for the GDAS cycle and were committed to
the branch.
All this is new territory since we do not update the surface fields via
global_cycle. If we could adapt global_cycle to update the surface fields
on the native grid, this will not be needed.
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Ticket URL: <https://svnemc.ncep.noaa.gov/trac/fv3gfs/ticket/11#comment:72>
fv3gfs <https://svnemc.ncep.noaa.gov/trac/fv3gfs>
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