Alpine Evidence for Atmospheric Circulation Patterns in Europe during the Last Glacial Maximum
The configuration of Alpine accumulation areas during the last glacial maximum (LGM) has been reconstructed using glacial–geological mapping. The results indicate that the LGM ice surface consisted of at least three major ice domes, all located south of the principal weather divide of the Alps. This...
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crcambridgeupr:10.1006/qres.2000.2169 2024-06-23T07:55:09+00:00 Alpine Evidence for Atmospheric Circulation Patterns in Europe during the Last Glacial Maximum Florineth, Duri Schlüchter, Christian 2000 http://dx.doi.org/10.1006/qres.2000.2169 http://api.elsevier.com/content/article/PII:S0033589400921690?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589400921690?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400026399 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 54, issue 3, page 295-308 ISSN 0033-5894 1096-0287 journal-article 2000 crcambridgeupr https://doi.org/10.1006/qres.2000.2169 2024-06-05T04:04:45Z The configuration of Alpine accumulation areas during the last glacial maximum (LGM) has been reconstructed using glacial–geological mapping. The results indicate that the LGM ice surface consisted of at least three major ice domes, all located south of the principal weather divide of the Alps. This implies that the buildup of the main Alpine ice cover during oxygen isotope stage (OIS) 2 was related to precipitation by dominant southerly atmospheric circulation, in contrast to today's prevalent westerly airflow. Such a reorganization of the atmospheric circulation is consistent with a southward displacement of the Oceanic Polar Front in the North Atlantic and of the associated storm track to the south of the Alps. These results, combined with additional paleoclimate records from western and southern Europe, allow an interpretation of the asynchronous evolution of the different European ice caps during the last glaciation. δ 18 O stages (OIS) 4 and 3 were characterized by location of the Polar Front north of 46°N (Gulf of Biscay). This affected prevailing westerly circulation and thus, ice buildup in western Scandinavia, the Pyrénées, Vosges, and northern Alps. At the LGM, however, the Polar Front lay at ∼44°N, causing dominating southerly circulation and reduced precipitation in central and northern Europe. Article in Journal/Newspaper North Atlantic Cambridge University Press Quaternary Research 54 3 295 308 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
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English |
description |
The configuration of Alpine accumulation areas during the last glacial maximum (LGM) has been reconstructed using glacial–geological mapping. The results indicate that the LGM ice surface consisted of at least three major ice domes, all located south of the principal weather divide of the Alps. This implies that the buildup of the main Alpine ice cover during oxygen isotope stage (OIS) 2 was related to precipitation by dominant southerly atmospheric circulation, in contrast to today's prevalent westerly airflow. Such a reorganization of the atmospheric circulation is consistent with a southward displacement of the Oceanic Polar Front in the North Atlantic and of the associated storm track to the south of the Alps. These results, combined with additional paleoclimate records from western and southern Europe, allow an interpretation of the asynchronous evolution of the different European ice caps during the last glaciation. δ 18 O stages (OIS) 4 and 3 were characterized by location of the Polar Front north of 46°N (Gulf of Biscay). This affected prevailing westerly circulation and thus, ice buildup in western Scandinavia, the Pyrénées, Vosges, and northern Alps. At the LGM, however, the Polar Front lay at ∼44°N, causing dominating southerly circulation and reduced precipitation in central and northern Europe. |
format |
Article in Journal/Newspaper |
author |
Florineth, Duri Schlüchter, Christian |
spellingShingle |
Florineth, Duri Schlüchter, Christian Alpine Evidence for Atmospheric Circulation Patterns in Europe during the Last Glacial Maximum |
author_facet |
Florineth, Duri Schlüchter, Christian |
author_sort |
Florineth, Duri |
title |
Alpine Evidence for Atmospheric Circulation Patterns in Europe during the Last Glacial Maximum |
title_short |
Alpine Evidence for Atmospheric Circulation Patterns in Europe during the Last Glacial Maximum |
title_full |
Alpine Evidence for Atmospheric Circulation Patterns in Europe during the Last Glacial Maximum |
title_fullStr |
Alpine Evidence for Atmospheric Circulation Patterns in Europe during the Last Glacial Maximum |
title_full_unstemmed |
Alpine Evidence for Atmospheric Circulation Patterns in Europe during the Last Glacial Maximum |
title_sort |
alpine evidence for atmospheric circulation patterns in europe during the last glacial maximum |
publisher |
Cambridge University Press (CUP) |
publishDate |
2000 |
url |
http://dx.doi.org/10.1006/qres.2000.2169 http://api.elsevier.com/content/article/PII:S0033589400921690?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589400921690?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400026399 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Quaternary Research volume 54, issue 3, page 295-308 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1006/qres.2000.2169 |
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Quaternary Research |
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54 |
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3 |
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295 |
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308 |
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1802647619669852160 |