And on July 11 - 12 last year, gusts of warm air caused melting on virtually
the entire surface of the ice sheet.
Not exact matches
The drought that is devastating California and much
of the West has dried the region so much that 240 gigatons worth
of surface and groundwater have been lost, roughly the equivalent to a 3.9 - inch layer
of water over the
entire West, or the annual loss
of mass from the Greenland
Ice Sheet, according to the study.
The summer
of 2012 brought Greenland far more extensive melt than anything observed in the satellite record: in July 2012,
surface melt extended over nearly the
entire ice sheet.
An estimated 97 percent
of the
ice sheet surface melted on July 11 and 12, 2012, and virtually the
entire ice sheet surface melted at some point in July 2012.
Shfaqat Khan from the Technical University
of Denmark and colleagues used more than 30 years
of surface elevation measurements
of the
entire ice sheet to discover that overall loss is accelerating.
The melt
of virtually the
entire surface of the Greenland
ice sheet the other year is worrying.
This summer, in fact, virtually the
entire surface veneer
of the Greenland
ice sheet melted in a matter
of days, something that Ohio State researcher Jason Box, who worked on the CALIPSO research, says could start happening every summer.