[gradsusr] Issues opening GOES-16 NetCDF files

[Robert Kuligowski]

Karl,


     I've been able to plot them on version 2.1.1.b0; which version of 
GrADS are you using?


     Another option would be to create a GrADS control file for the 
netCDF file; e.g.,


DSET 
^OR_ABI-L2-CMIPC-M3C02_G16_s20183111612182_e20183111614555_c20183111615060.nc
OPTIONS yrev
DTYPE netcdf
UNDEF  -99
UNPACK scale_factor add_offset
TITLE ABI band 02 CMImesoscale sector
XDEF 2500 LINEAR 1 1
YDEF 1500 LINEAR 1 1
ZDEF 1 LEVELS 1000
TDEF 1 LINEAR 16:12Z07NOV2018 5mn
VARS 1
Brightness_Temperature=>CMI   1 y,x   Brightness Temperature (K)
ENDVARS

     Note that this will plot the images on their native grid; I don't 
know a way to remap them in GrADS if you want to plot them with a map on 
top.  Hope this helps...


Cheers,

Bob

On 11/7/2018 11:43 AM, Schneider, Karl P 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.
>
> Thanks,
> Karl
>
>
>
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-- 
Bob Kuligowski, Ph.D.
Meteorologist
NOAA/NESDIS/Center for Satellite Applications and Research (STAR)

Mailing Address:
National Oceanic and Atmospheric Administration
NESDIS STAR/SMCD
Bob Kuligowski
NCWCP E/RA2
5830 University Research Court
2nd Floor, Office #2828
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Phone:  (301) 683-3593
Fax  :  (301) 683-3616

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