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  A simple model of mélange buttressing for calving glaciers

Schlemm, T., Levermann, A. (2021): A simple model of mélange buttressing for calving glaciers. - The Cryosphere, 15, 2, 531-545.
https://doi.org/10.5194/tc-15-531-2021

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Item Permalink: https://publications.pik-potsdam.de/pubman/item/item_23881 Version Permalink: https://publications.pik-potsdam.de/pubman/item/item_23881_9
Genre: Journal Article

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 Creators:
Schlemm, Tanja1, Author              
Levermann, Anders1, Author              
Affiliations:
1Potsdam Institute for Climate Impact Research, ou_persistent13              

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 Abstract: Both ice sheets in Greenland and Antarctica are discharging ice into the ocean. In many regions along the coast of the ice sheets, the icebergs calve into a bay. If the addition of icebergs through calving is faster than their transport out of the embayment, the icebergs will be frozen into a mélange with surrounding sea ice in winter. In this case, the buttressing effect of the ice mélange can be considerably stronger than any buttressing by mere sea ice would be. This in turn stabilizes the glacier terminus and leads to a reduction in calving rates. Here we propose a simple parametrization of ice mélange buttressing which leads to an upper bound on calving rates and can be used in numerical and analytical modelling.

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 Dates: 2020-02-122020-12-142020-12-142021-02-03
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.5194/tc-15-531-2021
PIKDOMAIN: RD1 - Earth System Analysis
PIKDOMAIN: RD4 - Complexity Science
MDB-ID: yes - 3136
eDoc: 8942
Research topic keyword: Ice
Research topic keyword: Oceans
Regional keyword: Arctic & Antarctica
Model / method: PISM-PIK
Working Group: Ice Dynamics
Organisational keyword: RD1 - Earth System Analysis
Organisational keyword: RD4 - Complexity Science
OATYPE: Gold Open Access
 Degree: -

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Title: The Cryosphere
Source Genre: Journal, SCI, Scopus, p3, oa
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Pages: - Volume / Issue: 15 (2) Sequence Number: - Start / End Page: 531 - 545 Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/140507
Publisher: Copernicus