Earth and Planetary Sciences
6 years ago

Greenland Ice Sheet storing meltwater in solid ice, altering ice dynamics.

Geophysical Research Letters
Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland
Alexander Kendrick, Dustin M. Schroeder, Winnie Chu, Tun Jan Young, Poul Christoffersen, Joe Todd, Samuel Doyle, Jason E. Box, Alun Hubbard, Bryn Hubbard, Paul V. Brennan, Keith W. Nicholls, Lai Bun Lok

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Surface meltwater in West Greenland can be stored within solid ice damaged by crevasses, extending down to 48 meters below the ice surface during summer. This stored water is released or refrozen during winter, affecting the ice dynamic response to surface meltwater. This newly observed hydrological component could delay the delivery of meltwater to the bed of the Greenland Ice Sheet, impacting ice flow through basal lubrication.