Ontology highlight
ABSTRACT:
SUBMITTER: Christoffersen P
PROVIDER: S-EPMC5852115 | biostudies-literature | 2018 Mar
REPOSITORIES: biostudies-literature
Christoffersen Poul P Bougamont Marion M Hubbard Alun A Doyle Samuel H SH Grigsby Shane S Pettersson Rickard R
Nature communications 20180314 1
Supraglacial lakes on the Greenland Ice Sheet are expanding inland, but the impact on ice flow is equivocal because interior surface conditions may preclude the transfer of surface water to the bed. Here we use a well-constrained 3D model to demonstrate that supraglacial lakes in Greenland drain when tensile-stress perturbations propagate fractures in areas where fractures are normally absent or closed. These melt-induced perturbations escalate when lakes as far as 80 km apart form expansive net ...[more]