About: http://webisa.webdatacommons.org/193536717

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	What if we total that up for every spot on the ground for every year for which we have a measurement, and then we look to see whether that is increasing or decreasing through time?
http://www.w3.org/ns/prov#wasQuotedFrom	usgs.gov