Climate changes during the Late Glacial insouthern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy
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 debat...
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2023
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5022799 2023-11-12T04:22:45+01:00 Climate changes during the Late Glacial insouthern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy Robles, M. Peyron, O. Ménot, G. Brugiapaglia, E. Wulf, S. Appelt, O. Blache, M. Vannière, B. Dugerdil, L. Paura, B. Ansanay-Alex, S. Cromartie, A. Charlet, L. Guédron, S. de Beaulieu, J. Joannin, S. 2023 application/pdf https://gfzpublic.gfz-potsdam.de/pubman/item/item_5022799 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5022799_1/component/file_5022804/5022799.pdf unknown info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-19-493-2023 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5022799 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5022799_1/component/file_5022804/5022799.pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ Climate of the Past info:eu-repo/semantics/article 2023 ftgfzpotsdam https://doi.org/10.5194/cp-19-493-2023 2023-10-15T23:43:55Z 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 be linked to relocation of ... Article in Journal/Newspaper North Atlantic Sea ice GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Climate of the Past 19 2 493 515 |
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Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
description |
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 be linked to relocation of ... |
format |
Article in Journal/Newspaper |
author |
Robles, M. Peyron, O. Ménot, G. Brugiapaglia, E. Wulf, S. Appelt, O. Blache, M. Vannière, B. Dugerdil, L. Paura, B. Ansanay-Alex, S. Cromartie, A. Charlet, L. Guédron, S. de Beaulieu, J. Joannin, S. |
spellingShingle |
Robles, M. Peyron, O. Ménot, G. Brugiapaglia, E. Wulf, S. Appelt, O. Blache, M. Vannière, B. Dugerdil, L. Paura, B. Ansanay-Alex, S. Cromartie, A. Charlet, L. Guédron, S. de Beaulieu, J. Joannin, S. Climate changes during the Late Glacial insouthern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy |
author_facet |
Robles, M. Peyron, O. Ménot, G. Brugiapaglia, E. Wulf, S. Appelt, O. Blache, M. Vannière, B. Dugerdil, L. Paura, B. Ansanay-Alex, S. Cromartie, A. Charlet, L. Guédron, S. de Beaulieu, J. Joannin, S. |
author_sort |
Robles, M. |
title |
Climate changes during the Late Glacial insouthern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy |
title_short |
Climate changes during the Late Glacial insouthern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy |
title_full |
Climate changes during the Late Glacial insouthern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy |
title_fullStr |
Climate changes during the Late Glacial insouthern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy |
title_full_unstemmed |
Climate changes during the Late Glacial insouthern Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy |
title_sort |
climate changes during the late glacial insouthern europe: new insights based on pollen and brgdgts of lake matese in italy |
publishDate |
2023 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5022799 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5022799_1/component/file_5022804/5022799.pdf |
genre |
North Atlantic Sea ice |
genre_facet |
North Atlantic Sea ice |
op_source |
Climate of the Past |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-19-493-2023 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5022799 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5022799_1/component/file_5022804/5022799.pdf |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
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 |
_version_ |
1782337683309199360 |