Four decades of Antarctic Ice Sheet mass balance from 1979–2017

We evaluate the state of the mass balance of the Antarctic Ice Sheet over the last four decades using a comprehensive, precise satellite record and output products from a regional atmospheric climate model to document its impact on sea-level rise. The mass loss is dominated by enhanced glacier flow...

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Bibliographic Details
Published in:Proceedings of the National Academy of Sciences
Main Authors: Rignot, Eric, Mouginot, Jérémie, Scheuchl, Bernd, van den Broeke, Michiel, van Wessem, Melchior J., Morlighem, Mathieu
Format: Text
Language:English
Published: National Academy of Sciences 2019
Subjects:
Physical Sciences
Antarctic
East Antarctica
The Antarctic
Antarc*
Antarctica
Ice Sheet
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6347714/
http://www.ncbi.nlm.nih.gov/pubmed/30642972
https://doi.org/10.1073/pnas.1812883116
Description
Summary:We evaluate the state of the mass balance of the Antarctic Ice Sheet over the last four decades using a comprehensive, precise satellite record and output products from a regional atmospheric climate model to document its impact on sea-level rise. The mass loss is dominated by enhanced glacier flow in areas closest to warm, salty, subsurface circumpolar deep water, including East Antarctica, which has been a major contributor over the entire period. The same sectors are likely to dominate sea-level rise from Antarctica in decades to come as enhanced polar westerlies push more circumpolar deep water toward the glaciers.

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