Periodic Reporting for period 3 - CASSANDRA (Accelerating mass loss of Greenland: firn and the shifting runoff limit)

Meltwater running off the flanks of the Greenland ice sheet contributes roughly 60% to its mass loss, the rest being due to calving. Only meltwater originating from below the elevation of the runoff limit leaves the ice sheet, contributing to mass loss; melt at high elevations...