Transit boosting of trans-Channel katabatic winds by depressions associated with the west European storms tracks: impact on Pleistocene loess deposits
International audience Onshore and offshore sedimentological, geochemical, geomorphological, palaeontological and geochronological studies of loess deposits located under and around the English Channel revealed that they were transported by katabatic winds generated by the British-Irish Ice Sheet. K...
Published in: | Journal of the Geological Society |
---|---|
Main Authors: | , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2022
|
Subjects: | |
Online Access: | https://hal.science/hal-03781165 https://hal.science/hal-03781165/document https://hal.science/hal-03781165/file/Lefort%20et%20al%20-%202022%20-%20Transit%20boosting%20of%20trans-Channel%20katabatic%20winds.pdf https://doi.org/10.1144/jgs2021-078 |
id |
ftunivrennes1hal:oai:HAL:hal-03781165v1 |
---|---|
record_format |
openpolar |
spelling |
ftunivrennes1hal:oai:HAL:hal-03781165v1 2024-02-11T09:57:15+01:00 Transit boosting of trans-Channel katabatic winds by depressions associated with the west European storms tracks: impact on Pleistocene loess deposits Lefort, Jean-Pierre Renouf, John Danukalova, Guzel Université de Rennes (UR) Centre de Recherche en Archéologie, Archéosciences, Histoire (CReAAH) Le Mans Université (UM)-Université de Rennes (UR)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture (MC)-Nantes Université - UFR Histoire, Histoire de l'Art et Archéologie (Nantes Univ - UFR HHAA) Nantes Université - pôle Humanités Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Humanités Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ) Chercheur indépendant Russian Academy of Sciences Moscow (RAS) Institute of Geology of the Ufimian Scientific Centre, Russian Academy of Sciences Universite de Rennes 1 (Franco-Russe Cooperation funding) 2022 https://hal.science/hal-03781165 https://hal.science/hal-03781165/document https://hal.science/hal-03781165/file/Lefort%20et%20al%20-%202022%20-%20Transit%20boosting%20of%20trans-Channel%20katabatic%20winds.pdf https://doi.org/10.1144/jgs2021-078 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1144/jgs2021-078 hal-03781165 https://hal.science/hal-03781165 https://hal.science/hal-03781165/document https://hal.science/hal-03781165/file/Lefort%20et%20al%20-%202022%20-%20Transit%20boosting%20of%20trans-Channel%20katabatic%20winds.pdf doi:10.1144/jgs2021-078 info:eu-repo/semantics/OpenAccess ISSN: 0016-7649 EISSN: 2041-479X Journal of the Geological Society https://hal.science/hal-03781165 Journal of the Geological Society, 2022, 179 (3), ⟨10.1144/jgs2021-078⟩ Westernmost Europe British-Irish Ice Sheet katabatic wind Channel storms track loess transfer [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory info:eu-repo/semantics/article Journal articles 2022 ftunivrennes1hal https://doi.org/10.1144/jgs2021-078 2024-01-23T23:47:59Z International audience Onshore and offshore sedimentological, geochemical, geomorphological, palaeontological and geochronological studies of loess deposits located under and around the English Channel revealed that they were transported by katabatic winds generated by the British-Irish Ice Sheet. Katabatic winds, which are low-altitude wind flows, were able to jump over the low southern British hills but were stopped by the higher Brittany and Normandy hills. This regional topography is interrupted by a north-south corridor linking the northern and southern shores of Brittany where loess propagated down to the mouth of the Loire River. This long transit shows that the total distance travelled by the katabatic wind was around 750 km, which represents an unusual distance for the propagation of this wind under continental conditions. Strong similarities with Antarctica and Greenland, where well documented cases of katabatic winds are known, show that the transit of the trans-Channel katabatic winds were strongly enhanced by the seasonal drift of storms propagating in an eastward direction along the axis of the English Channel. This increasing strength of the north-south katabatic flux was probably at the origin of the transport of loess particles down to the mouth of the Loire River. Article in Journal/Newspaper Antarc* Antarctica Greenland Ice Sheet Université de Rennes 1: Publications scientifiques (HAL) Greenland Journal of the Geological Society 179 3 |
institution |
Open Polar |
collection |
Université de Rennes 1: Publications scientifiques (HAL) |
op_collection_id |
ftunivrennes1hal |
language |
English |
topic |
Westernmost Europe British-Irish Ice Sheet katabatic wind Channel storms track loess transfer [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory |
spellingShingle |
Westernmost Europe British-Irish Ice Sheet katabatic wind Channel storms track loess transfer [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory Lefort, Jean-Pierre Renouf, John Danukalova, Guzel Transit boosting of trans-Channel katabatic winds by depressions associated with the west European storms tracks: impact on Pleistocene loess deposits |
topic_facet |
Westernmost Europe British-Irish Ice Sheet katabatic wind Channel storms track loess transfer [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory |
description |
International audience Onshore and offshore sedimentological, geochemical, geomorphological, palaeontological and geochronological studies of loess deposits located under and around the English Channel revealed that they were transported by katabatic winds generated by the British-Irish Ice Sheet. Katabatic winds, which are low-altitude wind flows, were able to jump over the low southern British hills but were stopped by the higher Brittany and Normandy hills. This regional topography is interrupted by a north-south corridor linking the northern and southern shores of Brittany where loess propagated down to the mouth of the Loire River. This long transit shows that the total distance travelled by the katabatic wind was around 750 km, which represents an unusual distance for the propagation of this wind under continental conditions. Strong similarities with Antarctica and Greenland, where well documented cases of katabatic winds are known, show that the transit of the trans-Channel katabatic winds were strongly enhanced by the seasonal drift of storms propagating in an eastward direction along the axis of the English Channel. This increasing strength of the north-south katabatic flux was probably at the origin of the transport of loess particles down to the mouth of the Loire River. |
author2 |
Université de Rennes (UR) Centre de Recherche en Archéologie, Archéosciences, Histoire (CReAAH) Le Mans Université (UM)-Université de Rennes (UR)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture (MC)-Nantes Université - UFR Histoire, Histoire de l'Art et Archéologie (Nantes Univ - UFR HHAA) Nantes Université - pôle Humanités Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Humanités Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ) Chercheur indépendant Russian Academy of Sciences Moscow (RAS) Institute of Geology of the Ufimian Scientific Centre, Russian Academy of Sciences Universite de Rennes 1 (Franco-Russe Cooperation funding) |
format |
Article in Journal/Newspaper |
author |
Lefort, Jean-Pierre Renouf, John Danukalova, Guzel |
author_facet |
Lefort, Jean-Pierre Renouf, John Danukalova, Guzel |
author_sort |
Lefort, Jean-Pierre |
title |
Transit boosting of trans-Channel katabatic winds by depressions associated with the west European storms tracks: impact on Pleistocene loess deposits |
title_short |
Transit boosting of trans-Channel katabatic winds by depressions associated with the west European storms tracks: impact on Pleistocene loess deposits |
title_full |
Transit boosting of trans-Channel katabatic winds by depressions associated with the west European storms tracks: impact on Pleistocene loess deposits |
title_fullStr |
Transit boosting of trans-Channel katabatic winds by depressions associated with the west European storms tracks: impact on Pleistocene loess deposits |
title_full_unstemmed |
Transit boosting of trans-Channel katabatic winds by depressions associated with the west European storms tracks: impact on Pleistocene loess deposits |
title_sort |
transit boosting of trans-channel katabatic winds by depressions associated with the west european storms tracks: impact on pleistocene loess deposits |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03781165 https://hal.science/hal-03781165/document https://hal.science/hal-03781165/file/Lefort%20et%20al%20-%202022%20-%20Transit%20boosting%20of%20trans-Channel%20katabatic%20winds.pdf https://doi.org/10.1144/jgs2021-078 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland Ice Sheet |
genre_facet |
Antarc* Antarctica Greenland Ice Sheet |
op_source |
ISSN: 0016-7649 EISSN: 2041-479X Journal of the Geological Society https://hal.science/hal-03781165 Journal of the Geological Society, 2022, 179 (3), ⟨10.1144/jgs2021-078⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1144/jgs2021-078 hal-03781165 https://hal.science/hal-03781165 https://hal.science/hal-03781165/document https://hal.science/hal-03781165/file/Lefort%20et%20al%20-%202022%20-%20Transit%20boosting%20of%20trans-Channel%20katabatic%20winds.pdf doi:10.1144/jgs2021-078 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1144/jgs2021-078 |
container_title |
Journal of the Geological Society |
container_volume |
179 |
container_issue |
3 |
_version_ |
1790609543748648960 |