Last Glacial Maximum precipitation pattern in the Alps inferred from glacier modelling
During the Last Glacial Maximum (LGM), glaciers in the Alps reached a maximum extent, and broad sections of the foreland were covered by ice. In this study, we simulated the alpine ice cap using a glacier flow model to constrain the prevailing precipitation pattern with a geomorphological reconstruc...
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ftdoajarticles:oai:doaj.org/article:82954dc7be964f30b5bfbbc6285258e5 2023-05-15T16:38:07+02:00 Last Glacial Maximum precipitation pattern in the Alps inferred from glacier modelling P. Becker J. Seguinot G. Jouvet M. Funk 2016-08-01T00:00:00Z https://doi.org/10.5194/gh-71-173-2016 https://doaj.org/article/82954dc7be964f30b5bfbbc6285258e5 DE EN FR IT ger eng fre ita Copernicus Publications http://www.geogr-helv.net/71/173/2016/gh-71-173-2016.pdf https://doaj.org/toc/0016-7312 https://doaj.org/toc/2194-8798 0016-7312 2194-8798 doi:10.5194/gh-71-173-2016 https://doaj.org/article/82954dc7be964f30b5bfbbc6285258e5 Geographica Helvetica, Vol 71, Iss 3, Pp 173-187 (2016) Human ecology. Anthropogeography GF1-900 Geography (General) G1-922 Cartography GA101-1776 article 2016 ftdoajarticles https://doi.org/10.5194/gh-71-173-2016 2022-12-31T06:18:30Z During the Last Glacial Maximum (LGM), glaciers in the Alps reached a maximum extent, and broad sections of the foreland were covered by ice. In this study, we simulated the alpine ice cap using a glacier flow model to constrain the prevailing precipitation pattern with a geomorphological reconstruction of ice extent. For this purpose we forced the model using different temperature cooling and precipitation reduction factors. The use of the present-day precipitation pattern led to a systematic overestimation of the ice cover on the northern part of the Alps relative to the southern part. To reproduce the LGM ice cap, a more severe decrease in precipitation in the north than in the south was required. This result supports a southwesterly advection of atmospheric moisture to the Alps, sustained by a southward shift of the North Atlantic storm track during the LGM. Article in Journal/Newspaper Ice cap North Atlantic Directory of Open Access Journals: DOAJ Articles Geographica Helvetica 71 3 173 187 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
German English French Italian |
topic |
Human ecology. Anthropogeography GF1-900 Geography (General) G1-922 Cartography GA101-1776 |
spellingShingle |
Human ecology. Anthropogeography GF1-900 Geography (General) G1-922 Cartography GA101-1776 P. Becker J. Seguinot G. Jouvet M. Funk Last Glacial Maximum precipitation pattern in the Alps inferred from glacier modelling |
topic_facet |
Human ecology. Anthropogeography GF1-900 Geography (General) G1-922 Cartography GA101-1776 |
description |
During the Last Glacial Maximum (LGM), glaciers in the Alps reached a maximum extent, and broad sections of the foreland were covered by ice. In this study, we simulated the alpine ice cap using a glacier flow model to constrain the prevailing precipitation pattern with a geomorphological reconstruction of ice extent. For this purpose we forced the model using different temperature cooling and precipitation reduction factors. The use of the present-day precipitation pattern led to a systematic overestimation of the ice cover on the northern part of the Alps relative to the southern part. To reproduce the LGM ice cap, a more severe decrease in precipitation in the north than in the south was required. This result supports a southwesterly advection of atmospheric moisture to the Alps, sustained by a southward shift of the North Atlantic storm track during the LGM. |
format |
Article in Journal/Newspaper |
author |
P. Becker J. Seguinot G. Jouvet M. Funk |
author_facet |
P. Becker J. Seguinot G. Jouvet M. Funk |
author_sort |
P. Becker |
title |
Last Glacial Maximum precipitation pattern in the Alps inferred from glacier modelling |
title_short |
Last Glacial Maximum precipitation pattern in the Alps inferred from glacier modelling |
title_full |
Last Glacial Maximum precipitation pattern in the Alps inferred from glacier modelling |
title_fullStr |
Last Glacial Maximum precipitation pattern in the Alps inferred from glacier modelling |
title_full_unstemmed |
Last Glacial Maximum precipitation pattern in the Alps inferred from glacier modelling |
title_sort |
last glacial maximum precipitation pattern in the alps inferred from glacier modelling |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/gh-71-173-2016 https://doaj.org/article/82954dc7be964f30b5bfbbc6285258e5 |
genre |
Ice cap North Atlantic |
genre_facet |
Ice cap North Atlantic |
op_source |
Geographica Helvetica, Vol 71, Iss 3, Pp 173-187 (2016) |
op_relation |
http://www.geogr-helv.net/71/173/2016/gh-71-173-2016.pdf https://doaj.org/toc/0016-7312 https://doaj.org/toc/2194-8798 0016-7312 2194-8798 doi:10.5194/gh-71-173-2016 https://doaj.org/article/82954dc7be964f30b5bfbbc6285258e5 |
op_doi |
https://doi.org/10.5194/gh-71-173-2016 |
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Geographica Helvetica |
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71 |
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3 |
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173 |
op_container_end_page |
187 |
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1766028419029532672 |