MARS/Dissemination

Specifies the packing method used in the target GRIB messages. 

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Valid values for latitude/longitude output are simple packing (sisimple) or , second order (so) or, for GRIB2 fields, CCSDS (ccsds). Valid values for spectral fields are complex packing (co) or simple packing (si). In order to simple).

The default packing types for gridded data 

To preserve the packing of the archived data one would specify archived value (packing = av).

Dissemination

Member States and Cooperating states can request Second Order packing

packing = so;