Chironomid-based reconstruction of Lateglacial summer temperatures from the Ech palaeolake record (French western Pyrenees)

International audience Chironomid head capsules were extracted and identified in 52 samples along a sediment core retrieved from the Ech palaeololake, (710 m a.s.l. in the west-central Pyrenees). The pollen stratigraphy together with radiocarbon dates provided the basis for the chronology of the rec...

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Published in:Palaeogeography, Palaeoclimatology, Palaeoecology
Main Authors: Millet, Laurent, Rius, Damien, Galop, Didier, Heiri, Olivier, Brooks, S.J
Other Authors: Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC), Géographie de l'environnement (GEODE), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse - Jean Jaurès (UT2J), Oeschger Centre for Climate Change Research (OCCR), University of Bern, Department of Entomology, Natural History Museum Oslo, University of Oslo (UiO)-University of Oslo (UiO)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2011
Subjects:
geo
Online Access:https://doi.org/10.1016/j.palaeo.2011.11.014
https://halshs.archives-ouvertes.fr/halshs-00759115/file/Millet%20et%20al.%202012_cor.pdf
https://halshs.archives-ouvertes.fr/halshs-00759115
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spelling fttriple:oai:gotriple.eu:10670/1.nnxjhb 2023-05-15T17:23:40+02:00 Chironomid-based reconstruction of Lateglacial summer temperatures from the Ech palaeolake record (French western Pyrenees) Millet, Laurent Rius, Damien Galop, Didier Heiri, Olivier Brooks, S.J Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE) Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) Géographie de l'environnement (GEODE) Centre National de la Recherche Scientifique (CNRS)-Université Toulouse - Jean Jaurès (UT2J) Oeschger Centre for Climate Change Research (OCCR) University of Bern Department of Entomology Natural History Museum Oslo University of Oslo (UiO)-University of Oslo (UiO) 2011-01-01 https://doi.org/10.1016/j.palaeo.2011.11.014 https://halshs.archives-ouvertes.fr/halshs-00759115/file/Millet%20et%20al.%202012_cor.pdf https://halshs.archives-ouvertes.fr/halshs-00759115 en eng HAL CCSD Elsevier halshs-00759115 doi:10.1016/j.palaeo.2011.11.014 10670/1.nnxjhb https://halshs.archives-ouvertes.fr/halshs-00759115/file/Millet%20et%20al.%202012_cor.pdf https://halshs.archives-ouvertes.fr/halshs-00759115 other Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0031-0182 Palaeogeography, Palaeoclimatology, Palaeoecology Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 2011, 315-316, pp.86-99. ⟨10.1016/j.palaeo.2011.11.014⟩ Summer temperature Lateglacial Western Pyrenees Chironomids envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2011 fttriple https://doi.org/10.1016/j.palaeo.2011.11.014 2023-01-22T18:44:59Z International audience Chironomid head capsules were extracted and identified in 52 samples along a sediment core retrieved from the Ech palaeololake, (710 m a.s.l. in the west-central Pyrenees). The pollen stratigraphy together with radiocarbon dates provided the basis for the chronology of the record. Since temperature changes were identified as one of the major determining factors for shifts in the Ech chironomid assemblages during the Lateglacial, July air temperatures were tentatively inferred from the chironomid record using a transfer function based on a combined Swiss and Norwegian calibration dataset. The model reconstructed July air temperatures between 10 and 13 °C during the Oldest Dryas, a two step increase in temperatures to 16 and 17.5 °C during the first part of the Interstadial followed by a decrease to 16.5 °C at the end of the Interstadial. The Ech record features three centennial-scale 1.5 °C coolings during the Interstadial. Inferred temperatures decreased to 15-15.5 °C during the Younger Dryas, and reached ca. 17 °C at the beginning of the Holocene. The applicability of the combined Swiss-Norwegian transfer function to the Pyrenean fossil record was substantiated by the good statistics of the inference and the similar distribution of taxa with respect to temperature in the Alps and the Pyrenees. The reliability of the Ech record, including its chronology, was supported by its good concordance with other previously published chironomid-based lateglacial temperature reconstructions from Europe and the NGRIP δ18O record Article in Journal/Newspaper NGRIP Unknown Palaeogeography, Palaeoclimatology, Palaeoecology 315-316 86 99
institution Open Polar
collection Unknown
op_collection_id fttriple
language English
topic Summer temperature
Lateglacial
Western Pyrenees
Chironomids
envir
geo
spellingShingle Summer temperature
Lateglacial
Western Pyrenees
Chironomids
envir
geo
Millet, Laurent
Rius, Damien
Galop, Didier
Heiri, Olivier
Brooks, S.J
Chironomid-based reconstruction of Lateglacial summer temperatures from the Ech palaeolake record (French western Pyrenees)
topic_facet Summer temperature
Lateglacial
Western Pyrenees
Chironomids
envir
geo
description International audience Chironomid head capsules were extracted and identified in 52 samples along a sediment core retrieved from the Ech palaeololake, (710 m a.s.l. in the west-central Pyrenees). The pollen stratigraphy together with radiocarbon dates provided the basis for the chronology of the record. Since temperature changes were identified as one of the major determining factors for shifts in the Ech chironomid assemblages during the Lateglacial, July air temperatures were tentatively inferred from the chironomid record using a transfer function based on a combined Swiss and Norwegian calibration dataset. The model reconstructed July air temperatures between 10 and 13 °C during the Oldest Dryas, a two step increase in temperatures to 16 and 17.5 °C during the first part of the Interstadial followed by a decrease to 16.5 °C at the end of the Interstadial. The Ech record features three centennial-scale 1.5 °C coolings during the Interstadial. Inferred temperatures decreased to 15-15.5 °C during the Younger Dryas, and reached ca. 17 °C at the beginning of the Holocene. The applicability of the combined Swiss-Norwegian transfer function to the Pyrenean fossil record was substantiated by the good statistics of the inference and the similar distribution of taxa with respect to temperature in the Alps and the Pyrenees. The reliability of the Ech record, including its chronology, was supported by its good concordance with other previously published chironomid-based lateglacial temperature reconstructions from Europe and the NGRIP δ18O record
author2 Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE)
Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC)
Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC)
Géographie de l'environnement (GEODE)
Centre National de la Recherche Scientifique (CNRS)-Université Toulouse - Jean Jaurès (UT2J)
Oeschger Centre for Climate Change Research (OCCR)
University of Bern
Department of Entomology
Natural History Museum Oslo
University of Oslo (UiO)-University of Oslo (UiO)
format Article in Journal/Newspaper
author Millet, Laurent
Rius, Damien
Galop, Didier
Heiri, Olivier
Brooks, S.J
author_facet Millet, Laurent
Rius, Damien
Galop, Didier
Heiri, Olivier
Brooks, S.J
author_sort Millet, Laurent
title Chironomid-based reconstruction of Lateglacial summer temperatures from the Ech palaeolake record (French western Pyrenees)
title_short Chironomid-based reconstruction of Lateglacial summer temperatures from the Ech palaeolake record (French western Pyrenees)
title_full Chironomid-based reconstruction of Lateglacial summer temperatures from the Ech palaeolake record (French western Pyrenees)
title_fullStr Chironomid-based reconstruction of Lateglacial summer temperatures from the Ech palaeolake record (French western Pyrenees)
title_full_unstemmed Chironomid-based reconstruction of Lateglacial summer temperatures from the Ech palaeolake record (French western Pyrenees)
title_sort chironomid-based reconstruction of lateglacial summer temperatures from the ech palaeolake record (french western pyrenees)
publisher HAL CCSD
publishDate 2011
url https://doi.org/10.1016/j.palaeo.2011.11.014
https://halshs.archives-ouvertes.fr/halshs-00759115/file/Millet%20et%20al.%202012_cor.pdf
https://halshs.archives-ouvertes.fr/halshs-00759115
genre NGRIP
genre_facet NGRIP
op_source Hyper Article en Ligne - Sciences de l'Homme et de la Société
ISSN: 0031-0182
Palaeogeography, Palaeoclimatology, Palaeoecology
Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 2011, 315-316, pp.86-99. ⟨10.1016/j.palaeo.2011.11.014⟩
op_relation halshs-00759115
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10670/1.nnxjhb
https://halshs.archives-ouvertes.fr/halshs-00759115/file/Millet%20et%20al.%202012_cor.pdf
https://halshs.archives-ouvertes.fr/halshs-00759115
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container_title Palaeogeography, Palaeoclimatology, Palaeoecology
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