About: http://webisa.webdatacommons.org/146964003

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Where such readings are not available, compare the results obtained with those gotten from a normally operating receiver.
http://www.w3.org/ns/prov#wasQuotedFrom	maritime.org