Re: [cf-satellite] NetCDF gdal question

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Thanks for the reply, I haven't seen this page before. Looks like it have a good deal of information

Doug

On 6/13/2017 11:02 AM, H. Joe Lee wrote:

You can try VRT and GDAL Enhancements for ESDIS if your nc is netCDF-4/HDF5:

https://wiki.earthdata.nasa.gov/display/GEE


--
HDF: #1 Driver for Big, Deep, Fast data science.

On Tue, Jun 13, 2017 at 11:18 AM, Doug Fowler <dfowler@xxxxxxxxx <mailto:dfowler@xxxxxxxxx>> wrote:

    Hello,
      I work at a data center (NSIDC) in Boulder and we
    are reviewing some new NetCDF data that we'll archive.
    This is satellite data and is a fairly low level swath
    product. The geolocation data (lat/lons) is linked to
    the science data within each file.

    In HDFView and Panoply the data seems to display fine,
    but using ArcGIS, QGIS, and gdal, the data is 180
    degrees off.
    As an example, a file that is over Japan show up over
    the Atlantic in ArcGIS.

    One of my team ran some through gdal, here are his
    comments;
    It appears that GDAL has the same problem as ArcGIS,
    namely that when I create a GeoTIFF using
    gdal_translate extracting any band in
    VNP10.A2015183.1242.001.2017157163531.nc
    <http://VNP10.A2015183.1242.001.2017157163531.nc>, the
    longitude values for each GCP in the GeoTIFF are 180
    degrees too large.

    The first GCP is:
    GCP[  0]: Id=1, Info=
              (0.5,0.5) ->
    (205.183015823364,62.1505355834961,0)
    I believe it should be:
    GCP[  0]: Id=1, Info=
              (0.5,0.5) ->
    (25.183015823364,62.1505355834961,0)


    We've basically exhausted things to try here. I was
    told that you might have some suggestions of things to
    look at or try to help determine what is causing this
    problem.

    Any ideas or  information is appreciated,
    Doug Fowler

-- Doug Fowler, MODIS, VIIRS & ICESat Team Lead
    National Snow & Ice Data Center
    University of Colorado at Boulder
    UCB 449, Boulder, CO  80309
    ph (303)735-1357 <tel:%28303%29735-1357>; fax
    (303)492-2468 <tel:%28303%29492-2468>
    email: dfowler@xxxxxxxxx <mailto:dfowler@xxxxxxxxx>

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--
Doug Fowler, MODIS, VIIRS & ICESat Team Lead
National Snow & Ice Data Center
University of Colorado at Boulder
UCB 449, Boulder, CO  80309
ph (303)735-1357; fax (303)492-2468
email: dfowler@xxxxxxxxx

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