About: http://webisa.webdatacommons.org/8040492

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	The graph clearly shows that there is a step up in the mean coincident with the sudden loss of over half the sampling sites around 1990.
http://www.w3.org/ns/prov#wasQuotedFrom	judithcurry.com