Articles | Volume 13, issue 10
The Cryosphere, 13, 2633–2656, 2019
https://doi.org/10.5194/tc-13-2633-2019
The Cryosphere, 13, 2633–2656, 2019
https://doi.org/10.5194/tc-13-2633-2019
Research article
10 Oct 2019
Research article | 10 Oct 2019

Ice shelf basal melt rates from a high-resolution digital elevation model (DEM) record for Pine Island Glacier, Antarctica

David E. Shean et al.

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We produced an 8-year, high-resolution DEM record for Pine Island Glacier (PIG), a site of substantial Antarctic mass loss in recent decades. We developed methods to study the spatiotemporal evolution of ice shelf basal melting, which is responsible for ~ 60 % of PIG mass loss. We present shelf-wide basal melt rates and document relative melt rates for kilometer-scale basal channels and keels, offering new indirect observations of ice–ocean interaction beneath a vulnerable ice shelf.