Ensemble from multiple sources

[Jun Wang]

Mandelli:

After further investigation, the data from these two sources are found
not same. The model is same, but the model is run on different
computers with slightly different initial conditions. Nomad5 still
gets data from the old run, and will be soon updated to the new run.
ftprd has been getting the new data since Jan 25, 2005.

Sorry for the misleading from previous mail.


Jun

----- Original Message -----
From: Mandelli Alessandro <mandelli.alessandro at TISCALI.IT>
Date: Wednesday, January 26, 2005 2:45 pm
Subject: Ensemble from multiple sources

> This map
>
http://www.meteogiornale.it/mappe/mandelli/ensemble/spaghetti500_0.png
> is obtained through server side extraction of ensemble data from
> http://nomad5.ncep.noaa.gov:9090/dods/en
>
> This one though
> http://www.meteogiornale.it/mappe/mandelli/ensemble/enspost500_0.png
> is obtained from grepping the source grib data 'enspost.t12z.z500'
> fromftp://ftpprd.ncep.noaa.gov/pub/data/nccf/com/mrf/prod (again,
> thanks to
> Sacchetti)
>
> Now: they are not equal, as I would expect; they don't even look
> alike.Model is the same, init is the same, resolution is the same:
> I would
> expect the same output.
>
> Any thought anyone?
>