The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica
Warm, dry föhn winds are observed over the Larsen C Ice Shelf year-round and are thought to contribute to the continuing weakening and collapse of ice shelves on the eastern Antarctic Peninsula (AP). We use a surface energy balance (SEB) model, driven by observations from two locations on the Larsen...
Published in: | The Cryosphere |
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2020
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00054751 2024-09-09T19:02:52+00:00 The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica Turton, Jenny V. Kirchgaessner, Amélie Ross, Andrew N. King, John C. Kuipers Munneke, Peter 2020-11 electronic https://doi.org/10.5194/tc-14-4165-2020 https://noa.gwlb.de/receive/cop_mods_00054751 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00054402/tc-14-4165-2020.pdf https://tc.copernicus.org/articles/14/4165/2020/tc-14-4165-2020.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-14-4165-2020 https://noa.gwlb.de/receive/cop_mods_00054751 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00054402/tc-14-4165-2020.pdf https://tc.copernicus.org/articles/14/4165/2020/tc-14-4165-2020.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2020 ftnonlinearchiv https://doi.org/10.5194/tc-14-4165-2020 2024-06-26T04:43:09Z Warm, dry föhn winds are observed over the Larsen C Ice Shelf year-round and are thought to contribute to the continuing weakening and collapse of ice shelves on the eastern Antarctic Peninsula (AP). We use a surface energy balance (SEB) model, driven by observations from two locations on the Larsen C Ice Shelf and one on the remnants of Larsen B, in combination with output from the Antarctic Mesoscale Prediction System (AMPS), to investigate the year-round impact of föhn winds on the SEB and melt from 2009 to 2012. Föhn winds have an impact on the individual components of the surface energy balance in all seasons and lead to an increase in surface melt in spring, summer and autumn up to 100 km away from the foot of the AP. When föhn winds occur in spring they increase surface melt, extend the melt season and increase the number of melt days within a year. Whilst AMPS is able to simulate the percentage of melt days associated with föhn with high skill, it overestimates the total amount of melting during föhn events and non-föhn events. This study extends previous attempts to quantify the impact of föhn on the Larsen C Ice Shelf by including a 4-year study period and a wider area of interest and provides evidence for föhn-related melting on both the Larsen C and Larsen B ice shelves. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf Ice Shelves The Cryosphere Niedersächsisches Online-Archiv NOA Antarctic The Antarctic Antarctic Peninsula The Cryosphere 14 11 4165 4180 |
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Niedersächsisches Online-Archiv NOA |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Turton, Jenny V. Kirchgaessner, Amélie Ross, Andrew N. King, John C. Kuipers Munneke, Peter The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica |
topic_facet |
article Verlagsveröffentlichung |
description |
Warm, dry föhn winds are observed over the Larsen C Ice Shelf year-round and are thought to contribute to the continuing weakening and collapse of ice shelves on the eastern Antarctic Peninsula (AP). We use a surface energy balance (SEB) model, driven by observations from two locations on the Larsen C Ice Shelf and one on the remnants of Larsen B, in combination with output from the Antarctic Mesoscale Prediction System (AMPS), to investigate the year-round impact of föhn winds on the SEB and melt from 2009 to 2012. Föhn winds have an impact on the individual components of the surface energy balance in all seasons and lead to an increase in surface melt in spring, summer and autumn up to 100 km away from the foot of the AP. When föhn winds occur in spring they increase surface melt, extend the melt season and increase the number of melt days within a year. Whilst AMPS is able to simulate the percentage of melt days associated with föhn with high skill, it overestimates the total amount of melting during föhn events and non-föhn events. This study extends previous attempts to quantify the impact of föhn on the Larsen C Ice Shelf by including a 4-year study period and a wider area of interest and provides evidence for föhn-related melting on both the Larsen C and Larsen B ice shelves. |
format |
Article in Journal/Newspaper |
author |
Turton, Jenny V. Kirchgaessner, Amélie Ross, Andrew N. King, John C. Kuipers Munneke, Peter |
author_facet |
Turton, Jenny V. Kirchgaessner, Amélie Ross, Andrew N. King, John C. Kuipers Munneke, Peter |
author_sort |
Turton, Jenny V. |
title |
The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica |
title_short |
The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica |
title_full |
The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica |
title_fullStr |
The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica |
title_full_unstemmed |
The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica |
title_sort |
influence of föhn winds on annual and seasonal surface melt on the larsen c ice shelf, antarctica |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/tc-14-4165-2020 https://noa.gwlb.de/receive/cop_mods_00054751 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00054402/tc-14-4165-2020.pdf https://tc.copernicus.org/articles/14/4165/2020/tc-14-4165-2020.pdf |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf Ice Shelves The Cryosphere |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf Ice Shelves The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-14-4165-2020 https://noa.gwlb.de/receive/cop_mods_00054751 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00054402/tc-14-4165-2020.pdf https://tc.copernicus.org/articles/14/4165/2020/tc-14-4165-2020.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-14-4165-2020 |
container_title |
The Cryosphere |
container_volume |
14 |
container_issue |
11 |
container_start_page |
4165 |
op_container_end_page |
4180 |
_version_ |
1809816900698374144 |