McIDAS-XCD Administrator's Guide
Version 2021.1

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GRIB2NAV

Lists the navigation parameters necessary for entering new GRIB2 datasets.


Formats

GRIB2NAV GRIB2Filename

Parameters

GRIB2Filename

fully qualified path of a valid GRIB2 file on your system


Remarks

When adding a new GRIB2 dataset that accesses data in the MySQL/MariaDB database, the dataset's navigation parameters must be added into the ~mcidas/data/grib2NavLookup.txt file.   These navigation parameters can be listed by the GRIB2NAV command.

Example output is:

Nav parameters for message 66, field 0 are NAM, 6, -4564482,
        2089981, 20318, 950000, 250000, 250000 

The fields are defined as follows:


Example

GRIB2NAV sampleGFS.grb2

This command lists the navigation parameters of the sampleGFS.grb2 GRIB2 file, which can then be entered in the grib2NavLookup.txt file. See Configuring Additional GRIB2 ADDE Datasets for more information.


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