[Wrf-users] Another WRF-Var issue

[Don Morton]

Howdy, I know you thought you'd gotten rid of me, but
I'm back with another question :)

With wrfhelp's prompting, and with the help of IDV, I've convinced
myself that ingesting a single temperature observation into my
50x50, 1km resolution Deadhorse domain results in differences
between my background and analysis, with greatest differences
near the level of the obs.  So, I'm a happy camper.

What I've learned, however (and this is what led me to all the
confusion earlier, thinking that nothing was happening), is that
the change is applied to variable T (perturbation potential temperature)
but NOT to variable T2 (2-meter temperature).  In other words, the
T2 field in the background is exactly the same as the T2 field in the
new analysis.  So, of course, initially I was trying to test my use of
wrf-var by looking for changes in my T2 variable, and seeing nothing.

Is this the way it "should" be?

Thanks,

Don



-- 
Don Morton
Department of Computer Science
The University of Montana - Missoula
http://www.cs.umt.edu/~morton/