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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
On 10/17/2012 2:22 PM, Mark Conder wrote:
Hi IDV Users, I'm having difficulties getting some POES AVHRR data to display in IDV3.1. I downloaded the files from NOAA's CLASS website, grabbing Global Area Coverage (GAC) dataset files (extension GC). Then I'm converting them to netCDF using sat2netcdf, which produces .nc files. Several warning messages occur during the conversion process such as... Illegal netCDF-3 attribute name = lat/lon (I've turned all the header flags on) Trying to import them into IDV gives me an error "Importing as type GRID but no grids found" ncdump on the files produces what looks to be a valid grid file, but maybe the format is incompatible with IDV, suspected given the warnings given above. any ideas? thanks, Mark ___________________________________ Mark Conder National Weather Service Forecast Office Lubbock, TX _______________________________________________ idvusers mailing list idvusers@xxxxxxxxxxxxxxxx For list information, to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/
Mark,There are some problems in this netCDF file, such as the unit of lat/lon and missing coordinates attribute on data values, which can be fixed by using ncml file. However, the real problem is using "anchor points" for lat/lon values instead of having a full array, and this will require some kind of interpolation. The conclusion is that the IDV can not read in this file.
Yuan
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