Fibre-optic experiment produces the most detailed temperature record from the Greenland Ice Sheet

Our fibre-optic experiment on Store Glacier have produced the most detailed record of temperature from the surface of the Greenland Ice Sheet to its bed, more than 1000 metres below. The result significantly improves our understanding of ice sheet thermodynamics. Compared to previous studies, which used discrete temperature sensors – often located tens or even[…]

Borehole optical televiewing shows deep mixed-mode crevasses at Store Glacier

RESPONDER borehole observations at Store Glacier have identified deep mixed-mode crevasses that penetrate far deeper into the ice than model predictions. For decades, crevasse depths have been estimated by calculating opening and closure rates theoretically. These simple calculations predicted crevasses would penetrate only some tens of metres below the surface of a glacier, but the[…]

Terrestrial radar interferometer captures >8000 calving events at Store Glacier

RESPONDER has produced the most detailed record of calving record from a marine-terminating glacier in Greenland. Using a terrestrial radar interferometer, our team recorded hundreds of calving events on a daily basis at Store Glacier and a total of 8,026 separate events. The icebergs that discharged from Store Glacier ranged from boulder sized (<1,000 cubic[…]

Strong katabatics on the ice sheet

Weather conditions remain testy, but Coen, Rickard, Adrian and TJ are back on the job! Their biggest challenge is a strong, persistent flow of air from the interior of the ice sheet. These winds occur when air comes in contact with a cold surface cooled by radiation. The team is reporting especially strong winds early in[…]