Climate changes during the Late Glacial in southern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy
International audience Abstract. The Late Glacial (14 700–11 700 cal BP) is a key climate period marked by rapid but contrasted changes in the Northern Hemisphere. Indeed, regional climate differences have been evidenced during the Late Glacial in Europe and the northern Mediterranean. However, past...
Published in: | Climate of the Past |
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Main Authors: | , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2023
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Subjects: | |
Online Access: | https://hal.science/hal-04012475 https://hal.science/hal-04012475/document https://hal.science/hal-04012475/file/cp-19-493-2023.pdf https://doi.org/10.5194/cp-19-493-2023 |
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EPHE (Ecole pratique des hautes études, Paris): HAL |
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ftecolephe |
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English |
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[SDE.MCG]Environmental Sciences/Global Changes [SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDE.MCG]Environmental Sciences/Global Changes [SDU]Sciences of the Universe [physics] Robles, Mary Peyron, Odile Ménot, Guillemette Brugiapaglia, Elisabetta Wulf, Sabine Appelt, Oona Blache, Marion Vannière, Boris Dugerdil, Lucas Paura, Bruno Ansanay-Alex, Salomé Cromartie, Amy Charlet, Laurent Guédron, Stéphane de Beaulieu, Jacques-Louis Joannin, Sébastien Climate changes during the Late Glacial in southern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy |
topic_facet |
[SDE.MCG]Environmental Sciences/Global Changes [SDU]Sciences of the Universe [physics] |
description |
International audience Abstract. The Late Glacial (14 700–11 700 cal BP) is a key climate period marked by rapid but contrasted changes in the Northern Hemisphere. Indeed, regional climate differences have been evidenced during the Late Glacial in Europe and the northern Mediterranean. However, past climate patterns are still debated since temperature and precipitation changes are poorly investigated towards the lower European latitudes. Lake Matese in southern Italy is a key site in the central Mediterranean to investigate climate patterns during the Late Glacial. This study aims to reconstruct climate changes and their impacts at Matese using a multi-proxy approach including magnetic susceptibility, geochemistry (XRF core scanning), pollen data and molecular biomarkers like branched glycerol dialkyl glycerol tetraethers (brGDGTs). Paleotemperatures and paleo-precipitation patterns are quantitatively inferred from pollen assemblages (multi-method approach: modern analogue technique, weighted averaging partial least-squares regression, random forest and boosted regression trees) and brGDGT calibrations. The results are compared to a latitudinal selection of regional climate reconstructions in Italy to better understand climate processes in Europe and in the circum-Mediterranean region. A warm Bølling–Allerød and a marked cold Younger Dryas are revealed in all climate reconstructions inferred from various proxies (chironomids, ostracods, speleothems, pollen, brGDGTs), showing no latitudinal differences in terms of temperatures across Italy. During the Bølling–Allerød, no significant changes in terms of precipitation are recorded; however, a contrasted pattern is visible during the Younger Dryas. Slightly wetter conditions are recorded south of 42∘ N, whereas dry conditions are recorded north of 42∘ N. During the Younger Dryas, cold conditions can be attributed to the southward position of North Atlantic sea ice and of the polar frontal jet stream, whereas the increase in precipitation in southern Italy seems to ... |
author2 |
Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) Università degli Studi del Molise = University of Molise (UNIMOL) Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE) École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS) Portmouth University German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ) Institute of Plant Sciences Universität Bern / University of Bern (UNIBE) Laboratoire Chrono-environnement (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) Maison des Sciences de l'Homme et de l'Environnement Claude Nicolas Ledoux (UAR 3124) (MSHE) Oeschger Centre for Climate Change Research (OCCR) Cornell University New York Institut des Sciences de la Terre (ISTerre) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Université Grenoble Alpes (UGA) Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE) Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement IRD : UMR237-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Robles, Mary Peyron, Odile Ménot, Guillemette Brugiapaglia, Elisabetta Wulf, Sabine Appelt, Oona Blache, Marion Vannière, Boris Dugerdil, Lucas Paura, Bruno Ansanay-Alex, Salomé Cromartie, Amy Charlet, Laurent Guédron, Stéphane de Beaulieu, Jacques-Louis Joannin, Sébastien |
author_facet |
Robles, Mary Peyron, Odile Ménot, Guillemette Brugiapaglia, Elisabetta Wulf, Sabine Appelt, Oona Blache, Marion Vannière, Boris Dugerdil, Lucas Paura, Bruno Ansanay-Alex, Salomé Cromartie, Amy Charlet, Laurent Guédron, Stéphane de Beaulieu, Jacques-Louis Joannin, Sébastien |
author_sort |
Robles, Mary |
title |
Climate changes during the Late Glacial in southern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy |
title_short |
Climate changes during the Late Glacial in southern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy |
title_full |
Climate changes during the Late Glacial in southern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy |
title_fullStr |
Climate changes during the Late Glacial in southern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy |
title_full_unstemmed |
Climate changes during the Late Glacial in southern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy |
title_sort |
climate changes during the late glacial in southern europe: new insights based on pollen and brgdgts of lake matese in italy |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-04012475 https://hal.science/hal-04012475/document https://hal.science/hal-04012475/file/cp-19-493-2023.pdf https://doi.org/10.5194/cp-19-493-2023 |
genre |
North Atlantic Sea ice |
genre_facet |
North Atlantic Sea ice |
op_source |
ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://hal.science/hal-04012475 Climate of the Past, 2023, 19 (2), pp.493-515. ⟨10.5194/cp-19-493-2023⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-19-493-2023 hal-04012475 https://hal.science/hal-04012475 https://hal.science/hal-04012475/document https://hal.science/hal-04012475/file/cp-19-493-2023.pdf doi:10.5194/cp-19-493-2023 IRD: fdi:010087525 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/cp-19-493-2023 |
container_title |
Climate of the Past |
container_volume |
19 |
container_issue |
2 |
container_start_page |
493 |
op_container_end_page |
515 |
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1801380006914424832 |
spelling |
ftecolephe:oai:HAL:hal-04012475v1 2024-06-09T07:48:20+00:00 Climate changes during the Late Glacial in southern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy Robles, Mary Peyron, Odile Ménot, Guillemette Brugiapaglia, Elisabetta Wulf, Sabine Appelt, Oona Blache, Marion Vannière, Boris Dugerdil, Lucas Paura, Bruno Ansanay-Alex, Salomé Cromartie, Amy Charlet, Laurent Guédron, Stéphane de Beaulieu, Jacques-Louis Joannin, Sébastien Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) Università degli Studi del Molise = University of Molise (UNIMOL) Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE) École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS) Portmouth University German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ) Institute of Plant Sciences Universität Bern / University of Bern (UNIBE) Laboratoire Chrono-environnement (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) Maison des Sciences de l'Homme et de l'Environnement Claude Nicolas Ledoux (UAR 3124) (MSHE) Oeschger Centre for Climate Change Research (OCCR) Cornell University New York Institut des Sciences de la Terre (ISTerre) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Université Grenoble Alpes (UGA) Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE) Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement IRD : UMR237-Centre National de la Recherche Scientifique (CNRS) 2023 https://hal.science/hal-04012475 https://hal.science/hal-04012475/document https://hal.science/hal-04012475/file/cp-19-493-2023.pdf https://doi.org/10.5194/cp-19-493-2023 en eng HAL CCSD European Geosciences Union (EGU) info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-19-493-2023 hal-04012475 https://hal.science/hal-04012475 https://hal.science/hal-04012475/document https://hal.science/hal-04012475/file/cp-19-493-2023.pdf doi:10.5194/cp-19-493-2023 IRD: fdi:010087525 info:eu-repo/semantics/OpenAccess ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://hal.science/hal-04012475 Climate of the Past, 2023, 19 (2), pp.493-515. ⟨10.5194/cp-19-493-2023⟩ [SDE.MCG]Environmental Sciences/Global Changes [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2023 ftecolephe https://doi.org/10.5194/cp-19-493-2023 2024-05-16T10:56:29Z International audience Abstract. The Late Glacial (14 700–11 700 cal BP) is a key climate period marked by rapid but contrasted changes in the Northern Hemisphere. Indeed, regional climate differences have been evidenced during the Late Glacial in Europe and the northern Mediterranean. However, past climate patterns are still debated since temperature and precipitation changes are poorly investigated towards the lower European latitudes. Lake Matese in southern Italy is a key site in the central Mediterranean to investigate climate patterns during the Late Glacial. This study aims to reconstruct climate changes and their impacts at Matese using a multi-proxy approach including magnetic susceptibility, geochemistry (XRF core scanning), pollen data and molecular biomarkers like branched glycerol dialkyl glycerol tetraethers (brGDGTs). Paleotemperatures and paleo-precipitation patterns are quantitatively inferred from pollen assemblages (multi-method approach: modern analogue technique, weighted averaging partial least-squares regression, random forest and boosted regression trees) and brGDGT calibrations. The results are compared to a latitudinal selection of regional climate reconstructions in Italy to better understand climate processes in Europe and in the circum-Mediterranean region. A warm Bølling–Allerød and a marked cold Younger Dryas are revealed in all climate reconstructions inferred from various proxies (chironomids, ostracods, speleothems, pollen, brGDGTs), showing no latitudinal differences in terms of temperatures across Italy. During the Bølling–Allerød, no significant changes in terms of precipitation are recorded; however, a contrasted pattern is visible during the Younger Dryas. Slightly wetter conditions are recorded south of 42∘ N, whereas dry conditions are recorded north of 42∘ N. During the Younger Dryas, cold conditions can be attributed to the southward position of North Atlantic sea ice and of the polar frontal jet stream, whereas the increase in precipitation in southern Italy seems to ... Article in Journal/Newspaper North Atlantic Sea ice EPHE (Ecole pratique des hautes études, Paris): HAL Climate of the Past 19 2 493 515 |