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...
Published in: | The Cryosphere |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2021
|
Subjects: | |
Online Access: | https://doi.org/10.5194/tc-15-531-2021 https://doaj.org/article/1e7f84cd829c42a9aa7dbde09a685290 |
id |
ftdoajarticles:oai:doaj.org/article:1e7f84cd829c42a9aa7dbde09a685290 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:1e7f84cd829c42a9aa7dbde09a685290 2023-05-15T13:57:56+02:00 A simple parametrization of mélange buttressing for calving glaciers T. Schlemm A. Levermann 2021-02-01T00:00:00Z https://doi.org/10.5194/tc-15-531-2021 https://doaj.org/article/1e7f84cd829c42a9aa7dbde09a685290 EN eng Copernicus Publications https://tc.copernicus.org/articles/15/531/2021/tc-15-531-2021.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-15-531-2021 1994-0416 1994-0424 https://doaj.org/article/1e7f84cd829c42a9aa7dbde09a685290 The Cryosphere, Vol 15, Pp 531-545 (2021) Environmental sciences GE1-350 Geology QE1-996.5 article 2021 ftdoajarticles https://doi.org/10.5194/tc-15-531-2021 2022-12-31T10:33:50Z 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. Article in Journal/Newspaper Antarc* Antarctica glacier Greenland Sea ice The Cryosphere Directory of Open Access Journals: DOAJ Articles Greenland The Cryosphere 15 2 531 545 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 T. Schlemm A. Levermann A simple parametrization of mélange buttressing for calving glaciers |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
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. |
format |
Article in Journal/Newspaper |
author |
T. Schlemm A. Levermann |
author_facet |
T. Schlemm A. Levermann |
author_sort |
T. Schlemm |
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 |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/tc-15-531-2021 https://doaj.org/article/1e7f84cd829c42a9aa7dbde09a685290 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica glacier Greenland Sea ice The Cryosphere |
genre_facet |
Antarc* Antarctica glacier Greenland Sea ice The Cryosphere |
op_source |
The Cryosphere, Vol 15, Pp 531-545 (2021) |
op_relation |
https://tc.copernicus.org/articles/15/531/2021/tc-15-531-2021.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-15-531-2021 1994-0416 1994-0424 https://doaj.org/article/1e7f84cd829c42a9aa7dbde09a685290 |
op_doi |
https://doi.org/10.5194/tc-15-531-2021 |
container_title |
The Cryosphere |
container_volume |
15 |
container_issue |
2 |
container_start_page |
531 |
op_container_end_page |
545 |
_version_ |
1766265869084655616 |