[gradsusr] GFS data

[Wesley Ebisuzaki]

Hi,


   gfs.t12z.prgb2f12 is the 12 hour forecast started from 12Z.   Clue is
the f(forecast hour)

   gfs.t12z.prgb2f00 is the 3 minute or so forecast started from 12Z.
Unfortunately the
       metadata doesn't mention it is a N minute forecast.

   gfs.t12z.pgrb2anl is the analysis.

   The f00 is the model state after a few time steps of the model
integration.  You
may see some transients as the model adjusts from the analysis state to
something
on the "slow manifold".

        Wesley



On Wed, Feb 8, 2012 at 11:06 AM, Jeff Lake <admin at michiganwxsystem.com>wrote:

> f00 is always analysis
>
> -Jeff Lake
> MichiganWxSystem.com
> WeatherMichigan.net
> TheWeatherCenter.net
> GRLevelXStuff.com
>
>
> On 2/8/2012 10:38 AM, Gisele dos Santos Zepka wrote:
> > Hello users,
> >
> > I need to run WRF for 24 hours using 0.5 deg GFS data (analysis from 12
> > UT + 24 forecasts). So, my first GFS file is gfs.t12z.pgrb2f00 (that I
> > believe to be the analysis), and every 3 hours I have the GFS forecasts
> > being the last file gfs.t12z.pgrb2f24. I don't know if they are the
> > right files to use. I am also confused between two archives
> > gfs.t12z.pgrb2f00 and gfs.12z.pgrb2f12, which of them is the analysis?
> >
> > Any help will be welcome.
> >
> > Thanks.
> >
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