Holocene climate variability in the North-Western Mediterranean Sea (Gulf of Lions)
Sea surface temperatures (SSTs) and land-derived input time series were generated from the Gulf of Lions inner-shelf sediments (NW Mediterranean Sea) using alkenones and high-molecular-weight odd-carbon numbered n-alkanes (TERR-alkanes), respectively. The SST record depicts three main phases: a warm...
Published in: | Climate of the Past |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Gesellschaft Mbh
2016
|
Subjects: | |
Online Access: | https://archimer.ifremer.fr/doc/00333/44461/44139.pdf https://doi.org/10.5194/cp-12-91-2016 https://archimer.ifremer.fr/doc/00333/44461/ |
id |
ftarchimer:oai:archimer.ifremer.fr:44461 |
---|---|
record_format |
openpolar |
spelling |
ftarchimer:oai:archimer.ifremer.fr:44461 2023-05-15T17:33:07+02:00 Holocene climate variability in the North-Western Mediterranean Sea (Gulf of Lions) Jalali, B. Sicre, M. -a. Bassetti, M. -a. Kallel, N. 2016 application/pdf https://archimer.ifremer.fr/doc/00333/44461/44139.pdf https://doi.org/10.5194/cp-12-91-2016 https://archimer.ifremer.fr/doc/00333/44461/ eng eng Copernicus Gesellschaft Mbh https://archimer.ifremer.fr/doc/00333/44461/44139.pdf doi:10.5194/cp-12-91-2016 https://archimer.ifremer.fr/doc/00333/44461/ Author(s) 2016. This work is distributed under the Creative Commons Attribution 3.0 License. info:eu-repo/semantics/openAccess restricted use CC-BY Climate Of The Past (1814-9324) (Copernicus Gesellschaft Mbh), 2016 , Vol. 12 , N. 1 , P. 91-101 text Publication info:eu-repo/semantics/article 2016 ftarchimer https://doi.org/10.5194/cp-12-91-2016 2021-09-23T20:28:20Z Sea surface temperatures (SSTs) and land-derived input time series were generated from the Gulf of Lions inner-shelf sediments (NW Mediterranean Sea) using alkenones and high-molecular-weight odd-carbon numbered n-alkanes (TERR-alkanes), respectively. The SST record depicts three main phases: a warm Early Holocene ( ∼ 18 ± 0.4 °C) followed by a cooling of ∼ 3 °C between 7000 and 1000 BP, and rapid warming from ∼ 1850 AD onwards. Several superimposed multi-decadal to centennial-scale cold events of ∼ 1 °C amplitude were also identified. TERR-alkanes were quantified in the same sedimentary horizons to identify periods of high Rhone River discharge and compare them with regional flood reconstructions. Concentrations show a broad increase from the Early Holocene towards the present with a pronounced minimum around 2500 BP and large fluctuations during the Late Holocene. Comparison with Holocene flood activity reconstructions across the Alps region suggests that sediments of the inner shelf originate mainly from the Upper Rhone River catchment basin and that they are primarily delivered during positive North Atlantic Oscillation (NAO). Article in Journal/Newspaper North Atlantic North Atlantic oscillation Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Rhone ENVELOPE(158.733,158.733,-79.983,-79.983) Climate of the Past 12 1 91 101 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
Sea surface temperatures (SSTs) and land-derived input time series were generated from the Gulf of Lions inner-shelf sediments (NW Mediterranean Sea) using alkenones and high-molecular-weight odd-carbon numbered n-alkanes (TERR-alkanes), respectively. The SST record depicts three main phases: a warm Early Holocene ( ∼ 18 ± 0.4 °C) followed by a cooling of ∼ 3 °C between 7000 and 1000 BP, and rapid warming from ∼ 1850 AD onwards. Several superimposed multi-decadal to centennial-scale cold events of ∼ 1 °C amplitude were also identified. TERR-alkanes were quantified in the same sedimentary horizons to identify periods of high Rhone River discharge and compare them with regional flood reconstructions. Concentrations show a broad increase from the Early Holocene towards the present with a pronounced minimum around 2500 BP and large fluctuations during the Late Holocene. Comparison with Holocene flood activity reconstructions across the Alps region suggests that sediments of the inner shelf originate mainly from the Upper Rhone River catchment basin and that they are primarily delivered during positive North Atlantic Oscillation (NAO). |
format |
Article in Journal/Newspaper |
author |
Jalali, B. Sicre, M. -a. Bassetti, M. -a. Kallel, N. |
spellingShingle |
Jalali, B. Sicre, M. -a. Bassetti, M. -a. Kallel, N. Holocene climate variability in the North-Western Mediterranean Sea (Gulf of Lions) |
author_facet |
Jalali, B. Sicre, M. -a. Bassetti, M. -a. Kallel, N. |
author_sort |
Jalali, B. |
title |
Holocene climate variability in the North-Western Mediterranean Sea (Gulf of Lions) |
title_short |
Holocene climate variability in the North-Western Mediterranean Sea (Gulf of Lions) |
title_full |
Holocene climate variability in the North-Western Mediterranean Sea (Gulf of Lions) |
title_fullStr |
Holocene climate variability in the North-Western Mediterranean Sea (Gulf of Lions) |
title_full_unstemmed |
Holocene climate variability in the North-Western Mediterranean Sea (Gulf of Lions) |
title_sort |
holocene climate variability in the north-western mediterranean sea (gulf of lions) |
publisher |
Copernicus Gesellschaft Mbh |
publishDate |
2016 |
url |
https://archimer.ifremer.fr/doc/00333/44461/44139.pdf https://doi.org/10.5194/cp-12-91-2016 https://archimer.ifremer.fr/doc/00333/44461/ |
long_lat |
ENVELOPE(158.733,158.733,-79.983,-79.983) |
geographic |
Rhone |
geographic_facet |
Rhone |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Climate Of The Past (1814-9324) (Copernicus Gesellschaft Mbh), 2016 , Vol. 12 , N. 1 , P. 91-101 |
op_relation |
https://archimer.ifremer.fr/doc/00333/44461/44139.pdf doi:10.5194/cp-12-91-2016 https://archimer.ifremer.fr/doc/00333/44461/ |
op_rights |
Author(s) 2016. This work is distributed under the Creative Commons Attribution 3.0 License. info:eu-repo/semantics/openAccess restricted use |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/cp-12-91-2016 |
container_title |
Climate of the Past |
container_volume |
12 |
container_issue |
1 |
container_start_page |
91 |
op_container_end_page |
101 |
_version_ |
1766131507678674944 |