Hard rock landforms generate 130 km ice shelf channels through water focusing in basal corrugations

Hafeez Jeofry; Neil Ross; Anne Le Brocq; Alastair G.C. Graham; Jilu Li; Prasad Gogineni; Mathieu Morlighem; Thomas Jordan; Martin J. Siegert

doi:10.1038/s41467-018-06679-z

Nature Communications (Nov 2018)

Hard rock landforms generate 130 km ice shelf channels through water focusing in basal corrugations

Hafeez Jeofry,
Neil Ross,
Anne Le Brocq,
Alastair G.C. Graham,
Jilu Li,
Prasad Gogineni,
Mathieu Morlighem,
Thomas Jordan,
Martin J. Siegert

Affiliations

Hafeez Jeofry: Grantham Institute and Department of Earth Science and Engineering, Imperial College London
Neil Ross: School of Geography, Politics and Sociology, Newcastle University
Anne Le Brocq: Geography, College of Life and Environmental Sciences, University of Exeter
Alastair G.C. Graham: Geography, College of Life and Environmental Sciences, University of Exeter
Jilu Li: Center for the Remote Sensing of Ice Sheets, University of Kansas
Prasad Gogineni: ECE and AEM Departments, The University of Alabama
Mathieu Morlighem: Department of Earth System Science, University of California
Thomas Jordan: Department of Geophysics, Stanford University
Martin J. Siegert: Grantham Institute and Department of Earth Science and Engineering, Imperial College London

DOI: https://doi.org/10.1038/s41467-018-06679-z
Journal volume & issue: Vol. 9, no. 1
pp. 1 – 9

Abstract

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Subglacial landforms, formed by glacial processes operating over long timescales, influence ice dynamics. Here, the authors show how mega-scale landforms at an Antarctic ice stream grounding zone modulate basal water flow, causing extensive channels in the ice shelf downstream that may impact its structure.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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