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...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
---|---|
Main Authors: | , , , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2011
|
Subjects: | |
Online Access: | https://halshs.archives-ouvertes.fr/halshs-00759115 https://halshs.archives-ouvertes.fr/halshs-00759115/document https://halshs.archives-ouvertes.fr/halshs-00759115/file/Millet%20et%20al.%202012_cor.pdf https://doi.org/10.1016/j.palaeo.2011.11.014 |
id |
ftccsdartic:oai:HAL:halshs-00759115v1 |
---|---|
record_format |
openpolar |
spelling |
ftccsdartic:oai:HAL:halshs-00759115v1 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) Université Toulouse - Jean Jaurès (UT2J)-Centre National de la Recherche Scientifique (CNRS) 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 https://halshs.archives-ouvertes.fr/halshs-00759115 https://halshs.archives-ouvertes.fr/halshs-00759115/document https://halshs.archives-ouvertes.fr/halshs-00759115/file/Millet%20et%20al.%202012_cor.pdf https://doi.org/10.1016/j.palaeo.2011.11.014 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2011.11.014 halshs-00759115 https://halshs.archives-ouvertes.fr/halshs-00759115 https://halshs.archives-ouvertes.fr/halshs-00759115/document https://halshs.archives-ouvertes.fr/halshs-00759115/file/Millet%20et%20al.%202012_cor.pdf doi:10.1016/j.palaeo.2011.11.014 info:eu-repo/semantics/OpenAccess ISSN: 0031-0182 Palaeogeography, Palaeoclimatology, Palaeoecology https://halshs.archives-ouvertes.fr/halshs-00759115 Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 2011, 315-316, pp.86-99. ⟨10.1016/j.palaeo.2011.11.014⟩ Summer temperature Lateglacial Western Pyrenees Chironomids [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2011 ftccsdartic https://doi.org/10.1016/j.palaeo.2011.11.014 2021-10-17T01:07:19Z 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 Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Palaeogeography, Palaeoclimatology, Palaeoecology 315-316 86 99 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Summer temperature Lateglacial Western Pyrenees Chironomids [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
Summer temperature Lateglacial Western Pyrenees Chironomids [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes 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 [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes |
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) Université Toulouse - Jean Jaurès (UT2J)-Centre National de la Recherche Scientifique (CNRS) 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://halshs.archives-ouvertes.fr/halshs-00759115 https://halshs.archives-ouvertes.fr/halshs-00759115/document https://halshs.archives-ouvertes.fr/halshs-00759115/file/Millet%20et%20al.%202012_cor.pdf https://doi.org/10.1016/j.palaeo.2011.11.014 |
genre |
NGRIP |
genre_facet |
NGRIP |
op_source |
ISSN: 0031-0182 Palaeogeography, Palaeoclimatology, Palaeoecology https://halshs.archives-ouvertes.fr/halshs-00759115 Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 2011, 315-316, pp.86-99. ⟨10.1016/j.palaeo.2011.11.014⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2011.11.014 halshs-00759115 https://halshs.archives-ouvertes.fr/halshs-00759115 https://halshs.archives-ouvertes.fr/halshs-00759115/document https://halshs.archives-ouvertes.fr/halshs-00759115/file/Millet%20et%20al.%202012_cor.pdf doi:10.1016/j.palaeo.2011.11.014 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.palaeo.2011.11.014 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
315-316 |
container_start_page |
86 |
op_container_end_page |
99 |
_version_ |
1766113931725635584 |