About: http://webisa.webdatacommons.org/204673254

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	Thus, there was a tendency to over-estimate the size of the glaciers on the maps based on the photography.Now, however, the surveys are carried out in September by satellite, before the snows and when glacier outlines are a lot clearer.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com