[gembud] virtual potential temperature (theta_v) from surface observations

Hello gembuds,

I’m sure there’s an easy solution to this, but I can’t seem to figure it out: 
is there a way to plot virtual potential temperature from surface observations 
using sfmap? Virtual temperature, or potential temperature, no problem, but I 
haven’t been able to get theta_v to work.  I tried using sthc(tvrc,pres) in the 
call to sfparm, but it doesn’t look right (I think it’s still just plotting 
theta).  Thanks for any help you can provide!


Russ S. Schumacher
Assistant Professor
Department of Atmospheric Science
Colorado State University
e-mail: russ.schumacher@xxxxxxxxxxxxx
phone: 970.491.8084
web: http://www.atmos.colostate.edu/faculty/schumacher.php

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