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...
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ftdoajarticles:oai:doaj.org/article:8634cb95d8d34f4aac3df7be47c35ad8 2023-05-15T14:03:23+02:00 The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica J. V. Turton A. Kirchgaessner A. N. Ross J. C. King P. Kuipers Munneke 2020-11-01T00:00:00Z https://doi.org/10.5194/tc-14-4165-2020 https://doaj.org/article/8634cb95d8d34f4aac3df7be47c35ad8 EN eng Copernicus Publications https://tc.copernicus.org/articles/14/4165/2020/tc-14-4165-2020.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-14-4165-2020 1994-0416 1994-0424 https://doaj.org/article/8634cb95d8d34f4aac3df7be47c35ad8 The Cryosphere, Vol 14, Pp 4165-4180 (2020) Environmental sciences GE1-350 Geology QE1-996.5 article 2020 ftdoajarticles https://doi.org/10.5194/tc-14-4165-2020 2022-12-31T15:50:19Z 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 Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Antarctic Peninsula The Cryosphere 14 11 4165 4180 |
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 J. V. Turton A. Kirchgaessner A. N. Ross J. C. King P. Kuipers Munneke The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
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 |
J. V. Turton A. Kirchgaessner A. N. Ross J. C. King P. Kuipers Munneke |
author_facet |
J. V. Turton A. Kirchgaessner A. N. Ross J. C. King P. Kuipers Munneke |
author_sort |
J. V. Turton |
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://doaj.org/article/8634cb95d8d34f4aac3df7be47c35ad8 |
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_source |
The Cryosphere, Vol 14, Pp 4165-4180 (2020) |
op_relation |
https://tc.copernicus.org/articles/14/4165/2020/tc-14-4165-2020.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-14-4165-2020 1994-0416 1994-0424 https://doaj.org/article/8634cb95d8d34f4aac3df7be47c35ad8 |
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 |
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