A Simple Law for Ice-Shelf Calving-Reference-Cited by-同舟云学术

A Simple Law for Ice-Shelf Calving

Published:2008-11-28 Issue:5906 Volume:322 Page:1344-1344
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Alley Richard B.¹²³⁴⁵,Horgan Huw J.¹²³⁴⁵,Joughin Ian¹²³⁴⁵,Cuffey Kurt M.¹²³⁴⁵,Dupont Todd K.¹²³⁴⁵,Parizek Byron R.¹²³⁴⁵,Anandakrishnan Sridhar¹²³⁴⁵,Bassis Jeremy¹²³⁴⁵

Affiliation:

1. Department of Geosciences, Pennsylvania State University (Penn State), University Park, PA 16802, USA.

2. Applied Physics Laboratory, University of Washington, Seattle, WA 98105, USA.

3. Department of Geography, University of California, Berkeley, CA 94720, USA.

4. Department of Earth System Science, University of California, Irvine, CA 92697, USA.

5. Mathematics and Geoscience, Penn State Dubois, Dubois, PA 15801, USA.

Abstract

A major problem for ice-sheet models is that no physically based law for the calving process has been established. Comparison across a diverse set of ice shelves demonstrates that iceberg calving increases with the along-flow spreading rate of a shelf. This relation suggests that frictional buttressing loss, which increases spreading, also leads to shelf retreat, a process known to accelerate ice-sheet flow and contribute to sea-level rise.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference4 articles.

1. M. F. Meier, in Sea-Level Change (National Academy Press, Washington, DC, 1990), pp. 171â189.

2. Assessment of the importance of ice-shelf buttressing to ice-sheet flow

3. 14th Annual West Antarctic Ice Sheet Meeting/joint meeting with Filchner-Ronne Ice Shelf Program 2008

4. Partial funding was provided by NSF (including grants 0424589 0440899 0531211 0758274 and 0809106) NASA NRA04OES02 and the Gary Comer Science and Education Foundation. We thank two anonymous reviewers.

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