Monsoon variability and deep oceanic circulation in the western equatorial Pacific over the last climatic cycle: Insights from sedimentary magnetic properties and sortable silt
International audience Magnetic and grain size properties of a sediment core located in the western equatorial Pacific, off the southeastern tip of the Philippine island of Mindanao, are presented in an effort to reconstruct past changes in the East Asian Monsoon and deep ocean circulation during th...
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Online Access: | https://hal.science/hal-03019786 https://hal.science/hal-03019786/document https://hal.science/hal-03019786/file/2010PA001980.pdf https://doi.org/10.1029/2010PA001980 |
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ftinsu:oai:HAL:hal-03019786v1 2024-04-28T08:03:06+00:00 Monsoon variability and deep oceanic circulation in the western equatorial Pacific over the last climatic cycle: Insights from sedimentary magnetic properties and sortable silt Kissel, Catherine Laj, Carlo Kienast, Markus Bolliet, Timothé Holbourn, Ann, E Hill, Paul Kuhnt, Wolfgang Braconnot, Pascale Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Climat et Magnétisme (CLIMAG) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Dalhousie University Halifax Institut für Geowissenschaften Kiel Christian-Albrechts-Universität zu Kiel = Christian-Albrechts University of Kiel = Université Christian-Albrechts de Kiel (CAU) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) 2010 https://hal.science/hal-03019786 https://hal.science/hal-03019786/document https://hal.science/hal-03019786/file/2010PA001980.pdf https://doi.org/10.1029/2010PA001980 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2010PA001980 hal-03019786 https://hal.science/hal-03019786 https://hal.science/hal-03019786/document https://hal.science/hal-03019786/file/2010PA001980.pdf doi:10.1029/2010PA001980 info:eu-repo/semantics/OpenAccess ISSN: 0883-8305 Paleoceanography https://hal.science/hal-03019786 Paleoceanography, 2010, 25 (3), pp.PA3215. ⟨10.1029/2010PA001980⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2010 ftinsu https://doi.org/10.1029/2010PA001980 2024-04-05T00:40:08Z International audience Magnetic and grain size properties of a sediment core located in the western equatorial Pacific, off the southeastern tip of the Philippine island of Mindanao, are presented in an effort to reconstruct past changes in the East Asian Monsoon and deep ocean circulation during the last 160 kyrs. The sedimentary concentration of magnetic particles, interpreted to reflect past changes in runoff from Mindanao, varies almost in antiphase with Northern Hemisphere insolation. This suggests that precipitation was lower in the western equatorial Pacific region during boreal insolation maxima and thus corroborates model results showing opposing trends in precipitation between land and the marine realm there. Variations in the grain size distribution of the inorganic sediment fraction, as recorded by both the sortable silt mean size and the magnetic grain size, provide a monitor of changes in sediment reworking by bottom currents. The close correlation of this proxy of bottom current strength and the benthic δ18O record from the same site implies a tight coupling between deep water flow, most likely Antarctic Intermediate Water (AAIW), and global climate. Article in Journal/Newspaper Antarc* Antarctic Institut national des sciences de l'Univers: HAL-INSU Paleoceanography 25 3 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Kissel, Catherine Laj, Carlo Kienast, Markus Bolliet, Timothé Holbourn, Ann, E Hill, Paul Kuhnt, Wolfgang Braconnot, Pascale Monsoon variability and deep oceanic circulation in the western equatorial Pacific over the last climatic cycle: Insights from sedimentary magnetic properties and sortable silt |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Magnetic and grain size properties of a sediment core located in the western equatorial Pacific, off the southeastern tip of the Philippine island of Mindanao, are presented in an effort to reconstruct past changes in the East Asian Monsoon and deep ocean circulation during the last 160 kyrs. The sedimentary concentration of magnetic particles, interpreted to reflect past changes in runoff from Mindanao, varies almost in antiphase with Northern Hemisphere insolation. This suggests that precipitation was lower in the western equatorial Pacific region during boreal insolation maxima and thus corroborates model results showing opposing trends in precipitation between land and the marine realm there. Variations in the grain size distribution of the inorganic sediment fraction, as recorded by both the sortable silt mean size and the magnetic grain size, provide a monitor of changes in sediment reworking by bottom currents. The close correlation of this proxy of bottom current strength and the benthic δ18O record from the same site implies a tight coupling between deep water flow, most likely Antarctic Intermediate Water (AAIW), and global climate. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Climat et Magnétisme (CLIMAG) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Dalhousie University Halifax Institut für Geowissenschaften Kiel Christian-Albrechts-Universität zu Kiel = Christian-Albrechts University of Kiel = Université Christian-Albrechts de Kiel (CAU) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) |
format |
Article in Journal/Newspaper |
author |
Kissel, Catherine Laj, Carlo Kienast, Markus Bolliet, Timothé Holbourn, Ann, E Hill, Paul Kuhnt, Wolfgang Braconnot, Pascale |
author_facet |
Kissel, Catherine Laj, Carlo Kienast, Markus Bolliet, Timothé Holbourn, Ann, E Hill, Paul Kuhnt, Wolfgang Braconnot, Pascale |
author_sort |
Kissel, Catherine |
title |
Monsoon variability and deep oceanic circulation in the western equatorial Pacific over the last climatic cycle: Insights from sedimentary magnetic properties and sortable silt |
title_short |
Monsoon variability and deep oceanic circulation in the western equatorial Pacific over the last climatic cycle: Insights from sedimentary magnetic properties and sortable silt |
title_full |
Monsoon variability and deep oceanic circulation in the western equatorial Pacific over the last climatic cycle: Insights from sedimentary magnetic properties and sortable silt |
title_fullStr |
Monsoon variability and deep oceanic circulation in the western equatorial Pacific over the last climatic cycle: Insights from sedimentary magnetic properties and sortable silt |
title_full_unstemmed |
Monsoon variability and deep oceanic circulation in the western equatorial Pacific over the last climatic cycle: Insights from sedimentary magnetic properties and sortable silt |
title_sort |
monsoon variability and deep oceanic circulation in the western equatorial pacific over the last climatic cycle: insights from sedimentary magnetic properties and sortable silt |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-03019786 https://hal.science/hal-03019786/document https://hal.science/hal-03019786/file/2010PA001980.pdf https://doi.org/10.1029/2010PA001980 |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 0883-8305 Paleoceanography https://hal.science/hal-03019786 Paleoceanography, 2010, 25 (3), pp.PA3215. ⟨10.1029/2010PA001980⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2010PA001980 hal-03019786 https://hal.science/hal-03019786 https://hal.science/hal-03019786/document https://hal.science/hal-03019786/file/2010PA001980.pdf doi:10.1029/2010PA001980 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2010PA001980 |
container_title |
Paleoceanography |
container_volume |
25 |
container_issue |
3 |
_version_ |
1797574279475232768 |