High-resolution Holocene climate and hydrological variability from two major Mediterranean deltas (Nile and Rhone)
International audience High-resolution records of sea surface temperatures (SSTs) and terrestrial n-alkanes (TERR-alkanes) combined with pollen from the same sedimentary sequences were generated to assess variations in the Nile River discharge over the Holocene. These independent proxy records indic...
Published in: | The Holocene |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2017
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Subjects: | |
Online Access: | https://insu.hal.science/insu-02193878 https://insu.hal.science/insu-02193878/document https://insu.hal.science/insu-02193878/file/Jalali%20et%20al,%202017.pdf https://doi.org/10.1177/0959683616683258 |
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ftinsu:oai:HAL:insu-02193878v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
Nile delta Mediterranean Holocene African Humid Period North Atlantic Rhone River sea surface temperatures [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
Nile delta Mediterranean Holocene African Humid Period North Atlantic Rhone River sea surface temperatures [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Jalali, Bassem Sicre, Marie-Alexandrine Kallel, Nejib Azuara, Julien Combourieu-Nebout, Nathalie Bassetti, Maria-Angela Klein, Vincent High-resolution Holocene climate and hydrological variability from two major Mediterranean deltas (Nile and Rhone) |
topic_facet |
Nile delta Mediterranean Holocene African Humid Period North Atlantic Rhone River sea surface temperatures [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience High-resolution records of sea surface temperatures (SSTs) and terrestrial n-alkanes (TERR-alkanes) combined with pollen from the same sedimentary sequences were generated to assess variations in the Nile River discharge over the Holocene. These independent proxy records indicate a period of wetter conditions in the Nile watershed during the early-Holocene consistent with insolation-driven enhanced monsoon precipitation, known as the African Humid Period (AHP). The detection of a dry episode around 9200 yr BP in the TERR-alkane and pollen time series suggests a temporary weakening of the monsoon intensity most probably triggered by extratropical cooling in the North Atlantic. An interval of C4 grass expansion between 8800 and 8400 yr BP was also evidenced from the TERR-alkane distribution and confirmed by palynological data. SSTs of the coastal waters off the Nile delta reveal strong fluctuations in the early-Holocene followed by a slight warming and two pronounced cold intervals around 3500 yr BP and 1500 yr BP. Comparison of these results with the same proxy data acquired from the Rhone River sediments (NW Mediterranean Sea) highlights an east–west contrast in the climate signals. |
author2 |
GEOGLOB FSS Université de Sfax - University of Sfax Biogéochimie-Traceurs-Paléoclimat (BTP) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Histoire naturelle de l'Homme préhistorique (HNHP) Muséum national d'Histoire naturelle (MNHN)-Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) Centre de Formation et de Recherche sur les Environnements Méditérranéens (CEFREM) Université de Perpignan Via Domitia (UPVD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Jalali, Bassem Sicre, Marie-Alexandrine Kallel, Nejib Azuara, Julien Combourieu-Nebout, Nathalie Bassetti, Maria-Angela Klein, Vincent |
author_facet |
Jalali, Bassem Sicre, Marie-Alexandrine Kallel, Nejib Azuara, Julien Combourieu-Nebout, Nathalie Bassetti, Maria-Angela Klein, Vincent |
author_sort |
Jalali, Bassem |
title |
High-resolution Holocene climate and hydrological variability from two major Mediterranean deltas (Nile and Rhone) |
title_short |
High-resolution Holocene climate and hydrological variability from two major Mediterranean deltas (Nile and Rhone) |
title_full |
High-resolution Holocene climate and hydrological variability from two major Mediterranean deltas (Nile and Rhone) |
title_fullStr |
High-resolution Holocene climate and hydrological variability from two major Mediterranean deltas (Nile and Rhone) |
title_full_unstemmed |
High-resolution Holocene climate and hydrological variability from two major Mediterranean deltas (Nile and Rhone) |
title_sort |
high-resolution holocene climate and hydrological variability from two major mediterranean deltas (nile and rhone) |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://insu.hal.science/insu-02193878 https://insu.hal.science/insu-02193878/document https://insu.hal.science/insu-02193878/file/Jalali%20et%20al,%202017.pdf https://doi.org/10.1177/0959683616683258 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0959-6836 EISSN: 1477-0911 The Holocene https://insu.hal.science/insu-02193878 The Holocene, 2017, 27 (8), pp.1158-1168. ⟨10.1177/0959683616683258⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1177/0959683616683258 insu-02193878 https://insu.hal.science/insu-02193878 https://insu.hal.science/insu-02193878/document https://insu.hal.science/insu-02193878/file/Jalali%20et%20al,%202017.pdf doi:10.1177/0959683616683258 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1177/0959683616683258 |
container_title |
The Holocene |
container_volume |
27 |
container_issue |
8 |
container_start_page |
1158 |
op_container_end_page |
1168 |
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1797588133591646208 |
spelling |
ftinsu:oai:HAL:insu-02193878v1 2024-04-28T08:30:10+00:00 High-resolution Holocene climate and hydrological variability from two major Mediterranean deltas (Nile and Rhone) Jalali, Bassem Sicre, Marie-Alexandrine Kallel, Nejib Azuara, Julien Combourieu-Nebout, Nathalie Bassetti, Maria-Angela Klein, Vincent GEOGLOB FSS Université de Sfax - University of Sfax Biogéochimie-Traceurs-Paléoclimat (BTP) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Histoire naturelle de l'Homme préhistorique (HNHP) Muséum national d'Histoire naturelle (MNHN)-Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) Centre de Formation et de Recherche sur les Environnements Méditérranéens (CEFREM) Université de Perpignan Via Domitia (UPVD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2017-01-09 https://insu.hal.science/insu-02193878 https://insu.hal.science/insu-02193878/document https://insu.hal.science/insu-02193878/file/Jalali%20et%20al,%202017.pdf https://doi.org/10.1177/0959683616683258 en eng HAL CCSD London: Sage info:eu-repo/semantics/altIdentifier/doi/10.1177/0959683616683258 insu-02193878 https://insu.hal.science/insu-02193878 https://insu.hal.science/insu-02193878/document https://insu.hal.science/insu-02193878/file/Jalali%20et%20al,%202017.pdf doi:10.1177/0959683616683258 info:eu-repo/semantics/OpenAccess ISSN: 0959-6836 EISSN: 1477-0911 The Holocene https://insu.hal.science/insu-02193878 The Holocene, 2017, 27 (8), pp.1158-1168. ⟨10.1177/0959683616683258⟩ Nile delta Mediterranean Holocene African Humid Period North Atlantic Rhone River sea surface temperatures [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 2017 ftinsu https://doi.org/10.1177/0959683616683258 2024-04-05T00:44:04Z International audience High-resolution records of sea surface temperatures (SSTs) and terrestrial n-alkanes (TERR-alkanes) combined with pollen from the same sedimentary sequences were generated to assess variations in the Nile River discharge over the Holocene. These independent proxy records indicate a period of wetter conditions in the Nile watershed during the early-Holocene consistent with insolation-driven enhanced monsoon precipitation, known as the African Humid Period (AHP). The detection of a dry episode around 9200 yr BP in the TERR-alkane and pollen time series suggests a temporary weakening of the monsoon intensity most probably triggered by extratropical cooling in the North Atlantic. An interval of C4 grass expansion between 8800 and 8400 yr BP was also evidenced from the TERR-alkane distribution and confirmed by palynological data. SSTs of the coastal waters off the Nile delta reveal strong fluctuations in the early-Holocene followed by a slight warming and two pronounced cold intervals around 3500 yr BP and 1500 yr BP. Comparison of these results with the same proxy data acquired from the Rhone River sediments (NW Mediterranean Sea) highlights an east–west contrast in the climate signals. Article in Journal/Newspaper North Atlantic Institut national des sciences de l'Univers: HAL-INSU The Holocene 27 8 1158 1168 |