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Running ungrib and metgrid with GFS realtime data.

H

hueini

New member
Hi,

I would like to initialize my WRF run using GFS realtime data.
The atmospheric fields and surface fields are written in separate files.
The atmospheric fields have filenames that look like this, gfs.t00z.pgrb2.0p25.anl.
The surface fields is after 1 dt integration and has filename "gfs.t00z.sfluxgrbf000.grib2". I needed the soil temperature and soil moisture variables. There is an inconsistency in atmospheric and surface fields because of the 1dt integration. Possible solution is that I will use gfs.t00z.pgrb2b.0p25.f000.

From what I understand from the user guide, I would be following "Using Multiple Meteorological Data Sources". Please correct me if that is not the case.

What Vtable should i use in running ungrib for the sfluxgrbf000.grib2 files. I do not see a matching one in the pre-defined Vtable directory.

Thanks
Agnes
 
Agnes,
If I understand your issue correctkly, I would suggest that you use gfs.t00z.pgrb2b.0p25.f000 and gfs.t00z.sfluxgrbf000.grib2. Note that gfs.t00z.pgrb2b.0p25.f000 should be the same as gfs.t00z.pgrb2.0p25.anl because f000 indicates that this is initial data derived from analysis.
 
Ming Chen said:
Agnes,
If I understand your issue correctkly, I would suggest that you use gfs.t00z.pgrb2b.0p25.f000 and gfs.t00z.sfluxgrbf000.grib2. Note that gfs.t00z.pgrb2b.0p25.f000 should be the same as gfs.t00z.pgrb2.0p25.anl because f000 indicates that this is initial data derived from analysis.
Click to expand...
Hi Ming,

gfs.t00z.pgrb2b.0p25.f000 should be very similar with gfs.t00z.pgrb2.0p25.anl. I am OK with that
I can use Vtable.GFS for gfs.t00z.pgrb2b.0p25.f000.
What Vtable should I use for gfs.t00z.sfluxgrbf000.grib2?

Thanks
Agnes
 
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