[netcdf-java] GRIB file in VerticalPerspectiveView projection has NaN Bounding Box

• To: netcdf-java <netcdf-java@xxxxxxxxxxxxxxxx>
• Subject: [netcdf-java] GRIB file in VerticalPerspectiveView projection has NaN Bounding Box
• From: Jon Blower <j.d.blower@xxxxxxxxxxxxx>
• Date: Wed, 2 Dec 2009 15:10:52 +0000

Hi,

We have a GRIB file can mostly be read using NetCDF-Java, except that
the GridCoordSystem's lat-lon bounding box is a set of four NaNs.  It
uses a VerticalPerspectiveView projection.  The attached test file may
help to diagnose the problem and produces the following output:

class ucar.unidata.geoloc.projection.VerticalPerspectiveView
 ll: NaNS NaNW+ ur: NaNS NaNW

The data file itself can be downloaded from
http://dl.dropbox.com/u/2984763/MSG2-SEVI-MSGCLMK-0100-0100-20091028120000.000000000Z-958792.grb.

Can anyone offer any pointers?  Is there a bug in the
VerticalPerspectiveView code?

Thanks,
Jon

-- 
Dr Jon Blower
Technical Director, Reading e-Science Centre
Environmental Systems Science Centre
University of Reading
Harry Pitt Building, 3 Earley Gate
Reading RG6 6AL. UK
Tel: +44 (0)118 378 5213
Fax: +44 (0)118 378 6413
j.d.blower@xxxxxxxxxxxxx
http://www.nerc-essc.ac.uk/People/Staff/Blower_J.htm

Attachment: EumetsatGribTest.java
Description: Binary data

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  • Re: [netcdf-java] GRIB file in VerticalPerspectiveView projection has NaN Bounding Box
    • From: Don Murray