Assertion: glacier's rate | /r/HasProperty | determined with few exceptions
Facets:
value: from laser altimetry
type: OTHER
value: from radar
type: LOCATION
Source sentences:
text: With a few exceptions, rates of mass change determined from radar and laser altimetry tend to differ by less than 100 Gt yr−1 at all times in each ice-sheet region (Extended Data Fig. 5).