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[netCDFDecoders #MDK-706930]: gribtonc decoder help

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.



Avichal,

we need the same GDS info as the Grib1 products, La1, Lo1, La2, Lo2, Di, and 
Dj.  I cut and pasted
the info from NCEP grib1 documentation.

Robb...



11 - 13
        La1 - latitude of first grid point; units: millidegrees (degrees x 
1000); values limited to range 0 - 90,000; bit 1 (leftmost) set to 1 for south 
latitude
14 - 16
        Lo1 - longitude of first grid point; units: millidegrees (degrees x 
1000); values limited to range 0 - 360,000; bit 1 (leftmost) set to 1 for west 
longitude
17
        Resolution and component flags (See Table 7)
18 - 20
        La2 - Latitude of last grid point
(same units, value range, and bit 1 as La1)
21 - 23
        Lo2 - Longitude of last grid point (same units, value range, and bit 1 
as Lo1)
24 - 25
        Di - Longitudinal Direction Increment (same units as Lo1) (if not 
given, all bits set = 1)
26 - 27
        Regular Lat/Lon Grid: Dj - Latitudinal Direction Increment (same units 
as La1) (if not given, all bits set = 1)
or
Gaussian Grid: N - number of latitude circles between a pole and the equator 
Mandatory if Gaussian Grid specified

Ticket Details
===================
Ticket ID: MDK-706930
Department: Support netCDF Decoders
Priority: Critical
Status: Open