[gradsusr] Issues opening GOES-16 NetCDF files

Schneider, Karl P kps5442 at psu.edu
Wed Nov 7 13:33:53 EST 2018

Bob, to clarify, I can create an image, but the problem is that like you mentioned, I’m not sure of a way to overlay the basemap.

That seems like what I need to do. Could you provide an example of a control file that might do the trick?


On Nov 7, 2018, at 1:12 PM, Jeff Duda <jeffduda319 at gmail.com<mailto:jeffduda319 at gmail.com>> wrote:

Have you tried writing a short control file and using xdfopen instead? That is a way of getting around netcdf files that aren't perfectly formatted.

Jeff Duda

On Wed, Nov 7, 2018 at 9:45 AM Schneider, Karl P <kps5442 at psu.edu<mailto:kps5442 at psu.edu>> wrote:

Hi everyone,

I'm looking for a way to plot some satellite data in GrADS. I've found a source for GOES-16 netcdf data, but its format is not compatible as shown below; the lat and lon are set to the number of grid points in the file, not the lat/lon extent of the file:

ga-> sdfopen OR_ABI-L2-CMIPC-M3C02_G16_s20183111612182_e20183111614555_c20183111615060.nc
Scanning self-describing file:  OR_ABI-L2-CMIPC-M3C02_G16_s20183111612182_e20183111614555_c20183111615060.nc
SDF file has no discernable time coordinate -- using default values.
SDF file OR_ABI-L2-CMIPC-M3C02_G16_s20183111612182_e20183111614555_c20183111615060.nc is open as file 1
LON set to 0 9999
LAT set to 0 5999

I've seen this issue pop up previously on the forum, but there was no good answer I could make sense of. I'm hoping someone could share some code with me to help resolve the issue, or better yet point me to a source of netcdf's that can be read in via the sdfopen command.


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Jeff Duda, Research Scientist

University of Colorado Boulder

Cooperative Institute for Research in Environmental Sciences

NOAA/OAR/ESRL/Global Systems Division

Boulder, CO
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