[Wrf-users] help: Forecasting with WRF?

[Oleksandr Huziy]

Hi,

I can only tell you this as a guess, because I don't remember how it is
done in wrf:

1) The 6h data is used on each time step as a boundary condition. They
could linearly interpolate it in time to the time steps or just take the
closest field to the current time step (or something more sophisticated).

2) You probably could do it for 6 more hours but then you would be using
the same boundary conditions from the last 6 hourly forecast on each time
step. In general I would say that this is not a good idea.

Cheers
--
Oleksandr (Sasha) Huziy

2012/7/2 Elena Maria Pison San Pedro <emp at dhi.com.sg>

> Hello,****
>
> ** **
>
> My question is regarding the capability of WRF to do forecasting. The
> common utilization of WRF is using GFS (ex. 6hourly) with analysis or
> forecasts files. Anyhow, WRF is running by itself between 2 GFS files, and
> we can say, it is preforming a forecast of 6 hours. Am I right? ****
>
> ** **
>
> **-          **when the model arrives to the time step of the new GFS
> file (time+ 6h), *how it integrates the information of the already
> atmospheric situation and the info from the GFS new file*?****
>
> ** **
>
> **-          **Is it then *possible to run WRF beyond the last GFS
> analysis* or longer than this intervals? ****
>
> ** **
>
> ** **
>
> Thanks a lot in advance!****
>
> ** **
>
> Cheers,****
>
> Elena****
>
> ** **
>
> ** **
>
> Elena Pison San Pedro****
>
> M.Sc. in Atmospheric Sciences****
>
>  ****
>
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