Assertion: glacier | /r/CapableOf | lower their surface height
Facets:
value: by about 9 feet
type: OTHER
value: since 2008—before
type: TEMPORAL
value: in an area
type: LOCATION
Source sentences:
text: Walker found that four glaciers west of Totten, in an area called Vincennes Bay, have lowered their surface height by about 9 feet (almost 3 meters) since 2008—before that year, there had been no measured change in elevation for these glaciers.