Field Definitions are Available Here
Collection
string (4000)
Explanation of how the associated collection is used for this collection.
Radiometric values computed from the raw instrument counts
/CollectionAssociations/CollectionAssociation/CollectionUse
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:aggregationInfo/gmd:MD_AggregateInformation/gmd:associationType/gmd:DS_InitiativeTypeCode
Descriptive Information (ECHO)