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[IDV #SHL-478540]: Derived Variables

Greetings Scott,

This is due to a change in the way GRIB data are handled by netCDF-Java; That 
said,
I noticed that you are using an old version of the IDV (3.0u1). If you update 
to the
latest version, which uses the latest version of netCDF-Java, then you should be
good to go with your derived variables.

Please see this note regarding the latest version of the IDV and the changes 
being made
to the Unidata THREDDS server (which is serving the data under the THREDDS 
Model Data
folder:

http://www.unidata.ucar.edu/blogs/news/entry/idv_users_note_upc_is

Note that in the blog post, two plugins are described - you will need
to pick one or the other in order to continue using IDV bundles. I would
highly recommend trying the "Test Unidata TDS 4.2 -> 4.3 Upgrade" plugin,
as this will allow you to test any older bundles you have to see how they do
with the transition to the new server. Also note that after June 1st of this 
year,
the IDV Model Data folder will no longer be accessible, and you will need to
use the "Test Unidata TDS 4.2 -> 4.3 Upgrade" plugin to continue being able
to get data from the Unidata TDS using the IDV.

Please let us know if you have any questions, or notice any bugs related
to the upgrade.

Cheers,

Sean

> Full Name: Scott J Landes
> Email Address: address@hidden
> Organization: Colorado Department of Public Health and Environment
> Package Version: 3.0u1 build date:2011-11-30 18:36 UTC
> Operating System: Windows 7
> Hardware: Java: home: C:\Program Files (x86)\IDV_3.0u1\jre version: 1.6.0_20 
> j3d:1.5.2 fcs (build4)
> Description of problem:
> 
> My colleagues and I noticed some changes to the IDV catalog today.
> Our concern is that a number of derived variables that we use regularly
> will not be available after 1 June 2013 when the IDV Model Data folder
> is discontinued.
> 
> Under the current IDV Model Data folder, North American Model we often
> use derived variables such as Isentropic Potential Vorticity and 1000-500
> mb thickness among others.  Under the new folder of THREDDS Model Data
> we cannot locate these types of variables.  Will these be added at a
> later date?
> 
> Thank you for any information you can provide.
> 
> --Scott J Landes
> Air Quality Meteorologist
> Colorado Department of Public Health and Environment
> 
> 

Ticket Details
===================
Ticket ID: SHL-478540
Department: Support IDV
Priority: Normal
Status: Open