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Re: Higher resolution model

Posted By: John Brown
Date: 19-October-05 1908Z

In Response To: Re: Higher resolution model (Will Murray)

Will,
We have been running a version of the WRF-ARW for about 2 years now, initializing it
off one of the RUC cycles in Boulder. [We call this WRFRUC, and you can see results on our ruc.fsl.noaa.gov (or, now preferred, ruc.noaa.gov) home page]. Shortly we will begin doing the same thing with the WRF-NMM. The treatment of upper air features, particularly jet streaks, is one of the matters we will be looking at carefully. Based on the WRFRUC runs we see roughly equivalent behavior between WRF and RUC, with a tendency for slightly poorer behavior of WRFRUC 250mb winds in drier situations, but often better WRFRUC performance in regions of strong latent heating.

Our motivation for going to some version of WRF for the Rapid Refresh (RR) is twofold. 1) We will within, say, 5 years be running at horizontal resolutions that require a non-hydrostatic model even on the expanded North American RR domain; there is no non-hydrostatic model with a hybrid theta-sigma vertical coordinate sufficiently far along in development to be considered a viable candidate. 2) We wish to capitalize on the large community effort underway to further develop and test the WRF model, including a large number of options for the parameterization of physical processes.

Thanks for your interest.

Messages In This Thread

Higher resolution model -- Justin Donahue -- 4-September-05 1745Z
ADMIN! Re: Higher resolution model -- Stan Benjamin -- 5-September-05 1055Z
Re: Higher resolution model -- Jack Glendening -- 12-October-05 1837Z
Re: Higher resolution model -- John Brown -- 13-October-05 1904Z
Re: Higher resolution model -- Will Murray -- 14-October-05 1008Z
Re: Higher resolution model -- John Brown -- 19-October-05 1908Z
Re: Higher resolution model -- Stephen Jascourt -- 27-October-05 1756Z
Re: Higher resolution model -- Jack Glendening -- 2-November-05 2211Z

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