Field Definitions are Available Here
Collection
varstring(40)
Mandatory if applicable
The identification given to the level surface taken as the surface of reference from which altitudes are measured.
NAVD88
AltitudeDistanceUnits, AltitudeEncodingMethod, AltitudeResolution
NAVD88
Must be used with AltitudeDistanceUnits, AltitudeEncodingMethod, AltitudeResolution.
METADATA > COLLECTIONMETADATA > Spatial > CoordinateSystemContainer > VerticalCoordinateSystemContainer > AltitudeSystemDefinition.AltitudeDatumName
or /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:verticalElement/gmd:EX_VerticalExtent/gmd:verticalCRS/gco:CharacterString
None.
Spatial Information