[Gdal-dev] accessing MODIS L1B geolocation data with gdal

[Frank Warmerdam]

Huw Lynch wrote:
> 
> Sorry if this question has been asked before; I've searched but can't 
> find a full explaination.
> 
> I am trying to access geolocation information in MODIS L1B data files. I 
> was hoping that the Latitude and Longitude data sets would be visible 
> via gdalinfo however when I run this those 2 datasets appear to be 
> skipped over.
> 
> Here's a gdalinfo output from an example modis data file;

Huw,

Try a gdalinfo on one of the subdatasets.  If things are setup properly,
and you have a very recent build of GDAL you should see something about
geolocation data with subdataset pointers to the lat and long arrays.

You might need to add "-mdd geolocation" to the gdalinfo commandline, and
might need to use the most recent FWTools release if you are working with
GDAL 1.3.2.

Best regards,
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