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20050125: IDV - Error when loading GFS data

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  • Subject: 20050125: IDV - Error when loading GFS data
  • Date: Wed, 26 Jan 2005 05:36:33 -0700

>From: "David Fitzgerald" <address@hidden>
>Organization: Millersville University
>Keywords: 200501251903.j0PJ3P3E019611  IDV derived quantities

Hi Dave-

>Institution: Millersville University
>Package Version: 1.2b1
>Operating System: os.name:Windows XP; os.arch:x86; os.version:5.1; 
>Hardware Information: java.vendor:Sun Microsystems Inc.; java.version:1.4.2_01
> ; java.home:C:\\Program Files\\IDV_1.2b1\\jre; 
>Inquiry: I get the folloowing error when creating an isosurface of absolute vo
> rticity from the GFS 
>data.  It happens on both the Windows and Linux versons of IDV 1.21

This is a known problem with the GFS grids (see:

http://my.unidata.ucar.edu/content/software/idv/docs/userguide/Bugs.html#faq1_cat3_11

since they are on a latitude/longitude native grid.  The problem is
that we don't take into account the variation of longitude in the
y direction.  I hope to be able to fix that by the next release.

Don
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