GRIB2 Meta Data and grib_api Keys

Last updated: January 2013

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This table lists the most important GRIB2 meta data and associated grib_api keys that are used in the COSMO-Model System.

Section Number Section Name Section Contents
0 Indicator Section “GRIB”, Discipline, GRIB Edition number, length of message
1 Identification Section Length of section, section number, characteristics that apply to all processed data in the GRIB message
2 Local Use Section (optional) Length of section, section number, additional items for local use by originating centres
3 Grid Definition Section Length of section, section number, definition of grid surface and geometry of data values within the surface
4 Product Definition Section Length of section, section number, description of the nature of the data
5 Data Representation Section Length of section, section number, description of how the data values are represented
6 Bit-map Section Length of section, section number, indication of presence or absence of data at each of the grid points, as applicable
7 Data Section Length of section, section number, data values
8 End Section "7777"


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