IDV - Trouble with IPV

Hi Dave,

> Inquiry: When I try to display Potential Vorticity for this file:
> ftp://ftp/pub/incoming/chop.pgbanl.fnl.2004081000
> in the default contour plan view, I get the following error:
>
> An error has occurred: ControlDescriptor.Creating display 
> org.python.core.PyException
>
>  

This is a known problem:
http://www.unidata.ucar.edu/software/idv/docs/userguide/Bugs.html#faq1_cat3_14
  "Any derived quantity that involves a derivative (e.g., divergence, 
vorticity) and is produced from a grid
    with a lat/lon domain will give incorrect results or not work."

I am cc'ing Don on this and he may be able to shed further light on this 
when he gets back next week.

Don - Dave's file is in /upc/share/metapps/test/bugs


-Jeff