A simple parametrization of mélange buttressing for calving glaciers

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 mélang...

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Main Authors: Schlemm, Tanja, Levermann, Anders
Format: Article in Journal/Newspaper
Language:English
Published: Katlenburg-Lindau : Copernicus 2021
Subjects:
910
Online Access:https://oa.tib.eu/renate/handle/123456789/8515
https://doi.org/10.34657/7553
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spelling ftleibnizopen:oai:oai.leibnizopen.de:_276PYkBdbrxVwz6DnwI 2023-07-30T03:58:26+02:00 A simple parametrization of mélange buttressing for calving glaciers Schlemm, Tanja Levermann, Anders 2021 application/pdf https://oa.tib.eu/renate/handle/123456789/8515 https://doi.org/10.34657/7553 eng eng Katlenburg-Lindau : Copernicus CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ Cryosphere 15 (2021), Nr. 2 910 article Text 2021 ftleibnizopen https://doi.org/10.34657/7553 2023-07-10T12:47:38Z 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. Leibniz_Fonds publishedVersion Article in Journal/Newspaper Antarc* Antarctica glacier Greenland Sea ice LeibnizOpen (The Leibniz Association) Greenland
institution Open Polar
collection LeibnizOpen (The Leibniz Association)
op_collection_id ftleibnizopen
language English
topic 910
spellingShingle 910
Schlemm, Tanja
Levermann, Anders
A simple parametrization of mélange buttressing for calving glaciers
topic_facet 910
description 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. Leibniz_Fonds publishedVersion
format Article in Journal/Newspaper
author Schlemm, Tanja
Levermann, Anders
author_facet Schlemm, Tanja
Levermann, Anders
author_sort Schlemm, Tanja
title A simple parametrization of mélange buttressing for calving glaciers
title_short A simple parametrization of mélange buttressing for calving glaciers
title_full A simple parametrization of mélange buttressing for calving glaciers
title_fullStr A simple parametrization of mélange buttressing for calving glaciers
title_full_unstemmed A simple parametrization of mélange buttressing for calving glaciers
title_sort simple parametrization of mélange buttressing for calving glaciers
publisher Katlenburg-Lindau : Copernicus
publishDate 2021
url https://oa.tib.eu/renate/handle/123456789/8515
https://doi.org/10.34657/7553
geographic Greenland
geographic_facet Greenland
genre Antarc*
Antarctica
glacier
Greenland
Sea ice
genre_facet Antarc*
Antarctica
glacier
Greenland
Sea ice
op_source Cryosphere 15 (2021), Nr. 2
op_rights CC BY 4.0 Unported
https://creativecommons.org/licenses/by/4.0/
op_doi https://doi.org/10.34657/7553
_version_ 1772821237228109824