Ice of Land Origin Ontology Environment Ontology Source
http://purl.org/wmo/seaice/iceOfLandOrigin#Iceberg http://purl.obolibrary.org/obo/ENVO_00000298 LOOM
http://purl.org/wmo/seaice/iceOfLandOrigin#Glacier http://purl.obolibrary.org/obo/ENVO_00000133 LOOM
http://purl.org/wmo/seaice/iceOfLandOrigin#IceShelf http://purl.obolibrary.org/obo/ENVO_00000380 LOOM