Field Definitions are Available Here
Collection
string (80)
The expanded name of the campaign/experiment (e.g. Global climate observing system).
ACES
/Campaigns/Campaign/LongName
/gmi:MI_Metadata/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:operation/gmi:MI_Operation/gmi:description/gco:CharacterString
Identification Information (ECHO)