Hi Simon,
If you are not doing it in real-time and you are interested in downscaling
from time T1 to T2, you could simply start your downscaling procedure a few
hours or days ahead of T1, so that by the time you reach your point of
interest T1, the model is spun up.
Saji
--- On Mon, Mar 21, 2011 at 9:49 AM, Simon Metcalf <Simon.Metcalf@rfs.nsw.gov.au > wrote: > Hi, > > I was wondering if someone can point me in the direction of a generally > accepted method (or a few options) for dynamically downscaling between and > across (6-hour) analyses? I know it's been done with various UCAR models > and is possibly quite a common task but there are a number of factors to > consider. For example, the 0-hour downscale is generally not (very) close > to the 6-hour forecast because it hasn't had time to ramp up the higher > resolution meteorology from courser grids. In other words, it's likely that > the 6-hour forecast is superior at the resolution in question, but over the > course of the following 6-hours it needs to incorporate the updated > analysis. What methods (if any) exist to resolve such a problem? I am > using a non-UCAR general circulation (CFD) model but the model itself is not > particularly relevant to this question unless the method needs to be > integrated very closely with the downscaling rather than just a (hopefully) > simple post-processing algorithm. I'm not an atmospheric scientist so any > information or recommendations are appreciated. > > Regards, > > Simon. > > *Simon Metcalf* > *NSW* *RURAL FIRE SERVICE* > Headquarters > Locked Bag 17 > Granville NSW 2142 > > *T: *+612 8741 5352 > *F: +6*12 8741 5384 > > *www.**rfs.nsw.gov.au* <http://www.rfs.nsw.gov.au/> > > RFS Disclaimer: > This email message is intended only for the addressee(s) and contains > information which may be confidential. If you are not the intended > recipient, please notify the sender and delete this email and any copies or > links to this email completely and immediately from your system. Views > expressed in this message are those of the individual sender, and are not > necessarily the views of the NSW Rural Fire Service. > > _______________________________________________ > ncl-talk mailing list > List instructions, subscriber options, unsubscribe: > http://mailman.ucar.edu/mailman/listinfo/ncl-talk > >
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Received on Sun Mar 20 20:37:02 2011
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