Subfossil trees suggest enhanced Mediterranean hydroclimate variability at the onset of the Younger Dryas
International audience Nearly 13,000 years ago, the warming trend into the Holocene was sharply interrupted by a reversal to near glacial conditions. Climatic causes and ecological consequences of the Younger Dryas (YD) have been extensively studied, however proxy archives from the Mediterranean bas...
Published in: | Scientific Reports |
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Main Authors: | , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2018
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Online Access: | https://amu.hal.science/hal-01884902 https://amu.hal.science/hal-01884902/document https://amu.hal.science/hal-01884902/file/Pauly%20et%20al%20Nature%20Scientific%20Reports%202018.pdf https://doi.org/10.1038/s41598-018-32251-2 |
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openpolar |
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Aix-Marseille Université: HAL |
op_collection_id |
ftunivaixmarseil |
language |
English |
topic |
Geochemistry Palaeoclimate Atmospheric chemistry [SHS.ENVIR]Humanities and Social Sciences/Environmental studies [SDE]Environmental Sciences |
spellingShingle |
Geochemistry Palaeoclimate Atmospheric chemistry [SHS.ENVIR]Humanities and Social Sciences/Environmental studies [SDE]Environmental Sciences Pauly, Maren Helle, Gerhard Miramont, Cécile Büntgen, Ulf Treydte, Kerstin Reinig, Frederick Guibal, Frédéric Sivan, Olivier Heinrich, Ingo Riedel, Frank Kromer, Bernd Balanzategui, Daniel Wacker, Lukas Sookdeo, Adam Brauer, Achim Subfossil trees suggest enhanced Mediterranean hydroclimate variability at the onset of the Younger Dryas |
topic_facet |
Geochemistry Palaeoclimate Atmospheric chemistry [SHS.ENVIR]Humanities and Social Sciences/Environmental studies [SDE]Environmental Sciences |
description |
International audience Nearly 13,000 years ago, the warming trend into the Holocene was sharply interrupted by a reversal to near glacial conditions. Climatic causes and ecological consequences of the Younger Dryas (YD) have been extensively studied, however proxy archives from the Mediterranean basin capturing this period are scarce and do not provide annual resolution. Here, we report a hydroclimatic reconstruction from stable isotopes (δ 18 O, δ 13 C) in subfossil pines from southern France. Growing before and during the transition period into the YD (12 900-12 600 cal BP), the trees provide an annually resolved, continuous sequence of atmospheric change. Isotopic signature of tree sourcewater (δ 18 O sw) and estimates of relative air humidity were reconstructed as a proxy for variations in air mass origin and precipitation regime. We find a distinct increase in inter-annual variability of sourcewater isotopes (δ 18 O sw), with three major downturn phases of increasing magnitude beginning at 12 740 cal BP. The observed variation most likely results from an amplified intensity of North Atlantic (low δ 18 O sw) versus Mediterranean (high δ 18 O sw) precipitation. This marked pattern of climate variability is not seen in records from higher latitudes and is likely a consequence of atmospheric circulation oscillations at the margin of the southward moving polar front. During the abrupt and intense climate change from the Allerød warm phase to the YD cold reversal in the North Hemisphere (ca. 12 700-11 600 cal BP) 1,2 sea-ice production and drifting enhanced 3 , alpine glaciers advanced 4 , storm intensity strengthened 5 , and a reorganization of the atmosphere 6,7 may have occurred. Greenland ice core data (NGRIP) reveal temperature drops of 10-15 °C with simultaneous reductions in snow accumulation and amplifications in atmospheric dust within less than a decade 6,8. During the rapid cooling, lake sediment records across Europe signal intensified wind stress, aridity and detrital input, alongside drastic ... |
author2 |
German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ) 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) Swiss Federal Institute for Forest, Snow and Landscape Research WSL Culture et Environnements, Préhistoire, Antiquité, Moyen-Age (CEPAM) Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UniCA) Institut national de recherches archéologiques préventives (Inrap) University of Johannesburg South Africa (UJ) Institute of Environmental Physics Heidelberg (IUP) Universität Heidelberg Heidelberg = Heidelberg University Institute for Particle Physics and Astrophysics ETH Zürich (IPA) Department of Physics = Departement Physik ETH Zürich (D-PHYS) Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich)-Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich) |
format |
Article in Journal/Newspaper |
author |
Pauly, Maren Helle, Gerhard Miramont, Cécile Büntgen, Ulf Treydte, Kerstin Reinig, Frederick Guibal, Frédéric Sivan, Olivier Heinrich, Ingo Riedel, Frank Kromer, Bernd Balanzategui, Daniel Wacker, Lukas Sookdeo, Adam Brauer, Achim |
author_facet |
Pauly, Maren Helle, Gerhard Miramont, Cécile Büntgen, Ulf Treydte, Kerstin Reinig, Frederick Guibal, Frédéric Sivan, Olivier Heinrich, Ingo Riedel, Frank Kromer, Bernd Balanzategui, Daniel Wacker, Lukas Sookdeo, Adam Brauer, Achim |
author_sort |
Pauly, Maren |
title |
Subfossil trees suggest enhanced Mediterranean hydroclimate variability at the onset of the Younger Dryas |
title_short |
Subfossil trees suggest enhanced Mediterranean hydroclimate variability at the onset of the Younger Dryas |
title_full |
Subfossil trees suggest enhanced Mediterranean hydroclimate variability at the onset of the Younger Dryas |
title_fullStr |
Subfossil trees suggest enhanced Mediterranean hydroclimate variability at the onset of the Younger Dryas |
title_full_unstemmed |
Subfossil trees suggest enhanced Mediterranean hydroclimate variability at the onset of the Younger Dryas |
title_sort |
subfossil trees suggest enhanced mediterranean hydroclimate variability at the onset of the younger dryas |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://amu.hal.science/hal-01884902 https://amu.hal.science/hal-01884902/document https://amu.hal.science/hal-01884902/file/Pauly%20et%20al%20Nature%20Scientific%20Reports%202018.pdf https://doi.org/10.1038/s41598-018-32251-2 |
genre |
Greenland Greenland ice core ice core NGRIP North Atlantic Sea ice |
genre_facet |
Greenland Greenland ice core ice core NGRIP North Atlantic Sea ice |
op_source |
ISSN: 2045-2322 EISSN: 2045-2322 Scientific Reports https://amu.hal.science/hal-01884902 Scientific Reports, 2018, 8 (1), pp.Article n° 13980. ⟨10.1038/s41598-018-32251-2⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-018-32251-2 hal-01884902 https://amu.hal.science/hal-01884902 https://amu.hal.science/hal-01884902/document https://amu.hal.science/hal-01884902/file/Pauly%20et%20al%20Nature%20Scientific%20Reports%202018.pdf doi:10.1038/s41598-018-32251-2 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41598-018-32251-2 |
container_title |
Scientific Reports |
container_volume |
8 |
container_issue |
1 |
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1796943684764172288 |
spelling |
ftunivaixmarseil:oai:HAL:hal-01884902v1 2024-04-21T08:04:03+00:00 Subfossil trees suggest enhanced Mediterranean hydroclimate variability at the onset of the Younger Dryas Pauly, Maren Helle, Gerhard Miramont, Cécile Büntgen, Ulf Treydte, Kerstin Reinig, Frederick Guibal, Frédéric Sivan, Olivier Heinrich, Ingo Riedel, Frank Kromer, Bernd Balanzategui, Daniel Wacker, Lukas Sookdeo, Adam Brauer, Achim German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ) 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) Swiss Federal Institute for Forest, Snow and Landscape Research WSL Culture et Environnements, Préhistoire, Antiquité, Moyen-Age (CEPAM) Université Nice Sophia Antipolis (1965 - 2019) (UNS)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UniCA) Institut national de recherches archéologiques préventives (Inrap) University of Johannesburg South Africa (UJ) Institute of Environmental Physics Heidelberg (IUP) Universität Heidelberg Heidelberg = Heidelberg University Institute for Particle Physics and Astrophysics ETH Zürich (IPA) Department of Physics = Departement Physik ETH Zürich (D-PHYS) Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich)-Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology Zürich (ETH Zürich) 2018-10-18 https://amu.hal.science/hal-01884902 https://amu.hal.science/hal-01884902/document https://amu.hal.science/hal-01884902/file/Pauly%20et%20al%20Nature%20Scientific%20Reports%202018.pdf https://doi.org/10.1038/s41598-018-32251-2 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-018-32251-2 hal-01884902 https://amu.hal.science/hal-01884902 https://amu.hal.science/hal-01884902/document https://amu.hal.science/hal-01884902/file/Pauly%20et%20al%20Nature%20Scientific%20Reports%202018.pdf doi:10.1038/s41598-018-32251-2 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2045-2322 EISSN: 2045-2322 Scientific Reports https://amu.hal.science/hal-01884902 Scientific Reports, 2018, 8 (1), pp.Article n° 13980. ⟨10.1038/s41598-018-32251-2⟩ Geochemistry Palaeoclimate Atmospheric chemistry [SHS.ENVIR]Humanities and Social Sciences/Environmental studies [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2018 ftunivaixmarseil https://doi.org/10.1038/s41598-018-32251-2 2024-03-28T01:12:49Z International audience Nearly 13,000 years ago, the warming trend into the Holocene was sharply interrupted by a reversal to near glacial conditions. Climatic causes and ecological consequences of the Younger Dryas (YD) have been extensively studied, however proxy archives from the Mediterranean basin capturing this period are scarce and do not provide annual resolution. Here, we report a hydroclimatic reconstruction from stable isotopes (δ 18 O, δ 13 C) in subfossil pines from southern France. Growing before and during the transition period into the YD (12 900-12 600 cal BP), the trees provide an annually resolved, continuous sequence of atmospheric change. Isotopic signature of tree sourcewater (δ 18 O sw) and estimates of relative air humidity were reconstructed as a proxy for variations in air mass origin and precipitation regime. We find a distinct increase in inter-annual variability of sourcewater isotopes (δ 18 O sw), with three major downturn phases of increasing magnitude beginning at 12 740 cal BP. The observed variation most likely results from an amplified intensity of North Atlantic (low δ 18 O sw) versus Mediterranean (high δ 18 O sw) precipitation. This marked pattern of climate variability is not seen in records from higher latitudes and is likely a consequence of atmospheric circulation oscillations at the margin of the southward moving polar front. During the abrupt and intense climate change from the Allerød warm phase to the YD cold reversal in the North Hemisphere (ca. 12 700-11 600 cal BP) 1,2 sea-ice production and drifting enhanced 3 , alpine glaciers advanced 4 , storm intensity strengthened 5 , and a reorganization of the atmosphere 6,7 may have occurred. Greenland ice core data (NGRIP) reveal temperature drops of 10-15 °C with simultaneous reductions in snow accumulation and amplifications in atmospheric dust within less than a decade 6,8. During the rapid cooling, lake sediment records across Europe signal intensified wind stress, aridity and detrital input, alongside drastic ... Article in Journal/Newspaper Greenland Greenland ice core ice core NGRIP North Atlantic Sea ice Aix-Marseille Université: HAL Scientific Reports 8 1 |