The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica
<jats:p>Abstract. 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...
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ftleedsuniv:oai:eprints.whiterose.ac.uk:168355 2023-05-15T13:45:14+02:00 The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica Turton, JV Kirchgaessner, A Ross, AN King, JC Kuipers Munneke, P 2020-11-24 text https://eprints.whiterose.ac.uk/168355/ https://eprints.whiterose.ac.uk/168355/1/tc-14-4165-2020.pdf en eng Copernicus Publications https://eprints.whiterose.ac.uk/168355/1/tc-14-4165-2020.pdf Turton, JV, Kirchgaessner, A, Ross, AN orcid.org/0000-0002-8631-3512 et al. (2 more authors) (2020) The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica. The Cryosphere, 14 (11). pp. 4165-4180. ISSN 1994-0416 cc_by_4 CC-BY Article NonPeerReviewed 2020 ftleedsuniv 2023-01-30T22:34:46Z <jats:p>Abstract. 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. </jats:p> Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Ice Shelf Ice Shelves The Cryosphere White Rose Research Online (Universities of Leeds, Sheffield & York) Antarctic The Antarctic Antarctic Peninsula |
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Open Polar |
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White Rose Research Online (Universities of Leeds, Sheffield & York) |
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ftleedsuniv |
language |
English |
description |
<jats:p>Abstract. 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. </jats:p> |
format |
Article in Journal/Newspaper |
author |
Turton, JV Kirchgaessner, A Ross, AN King, JC Kuipers Munneke, P |
spellingShingle |
Turton, JV Kirchgaessner, A Ross, AN King, JC Kuipers Munneke, P The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica |
author_facet |
Turton, JV Kirchgaessner, A Ross, AN King, JC Kuipers Munneke, P |
author_sort |
Turton, JV |
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://eprints.whiterose.ac.uk/168355/ https://eprints.whiterose.ac.uk/168355/1/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 |
https://eprints.whiterose.ac.uk/168355/1/tc-14-4165-2020.pdf Turton, JV, Kirchgaessner, A, Ross, AN orcid.org/0000-0002-8631-3512 et al. (2 more authors) (2020) The influence of föhn winds on annual and seasonal surface melt on the Larsen C Ice Shelf, Antarctica. The Cryosphere, 14 (11). pp. 4165-4180. ISSN 1994-0416 |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
_version_ |
1766217681147527168 |