Weakening and strengthening of the Indian monsoon during Heinrich events and Dansgaard-Oeschger oscillations
The Dansgaard-Oeschger oscillations and Heinrich events described in North Atlantic sediments and Greenland ice are expressed in the climate of the tropics, for example, as documented in Arabian Sea sediments. Given the strength of this teleconnection, we seek to reconstruct its range of environment...
Published in: | Paleoceanography |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2014
|
Subjects: | |
Online Access: | https://research.vu.nl/en/publications/a96a9735-6ff1-4a94-a6f6-cc81bf90e352 https://doi.org/10.1002/2013PA002509 https://hdl.handle.net/1871.1/a96a9735-6ff1-4a94-a6f6-cc81bf90e352 http://www.scopus.com/inward/record.url?scp=84894079333&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=84894079333&partnerID=8YFLogxK |
id |
ftvuamstcris:oai:research.vu.nl:publications/a96a9735-6ff1-4a94-a6f6-cc81bf90e352 |
---|---|
record_format |
openpolar |
spelling |
ftvuamstcris:oai:research.vu.nl:publications/a96a9735-6ff1-4a94-a6f6-cc81bf90e352 2024-06-23T07:53:23+00:00 Weakening and strengthening of the Indian monsoon during Heinrich events and Dansgaard-Oeschger oscillations Deplazes, Gaudenz Lückge, Andreas Stuut, Jan Berend W. Pätzold, Jürgen Kuhlmann, Holger Husson, Dorothée Fant, Mara Haug, Gerald H. 2014-01-01 https://research.vu.nl/en/publications/a96a9735-6ff1-4a94-a6f6-cc81bf90e352 https://doi.org/10.1002/2013PA002509 https://hdl.handle.net/1871.1/a96a9735-6ff1-4a94-a6f6-cc81bf90e352 http://www.scopus.com/inward/record.url?scp=84894079333&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=84894079333&partnerID=8YFLogxK eng eng https://research.vu.nl/en/publications/a96a9735-6ff1-4a94-a6f6-cc81bf90e352 info:eu-repo/semantics/restrictedAccess Deplazes , G , Lückge , A , Stuut , J B W , Pätzold , J , Kuhlmann , H , Husson , D , Fant , M & Haug , G H 2014 , ' Weakening and strengthening of the Indian monsoon during Heinrich events and Dansgaard-Oeschger oscillations ' , Paleoceanography , vol. 29 , no. 2 , pp. 99-114 . https://doi.org/10.1002/2013PA002509 Arabian Sea Dansgaard-Oeschger oscillations Heinrich events Indian Monsoon Sediment Transport XRF /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2014 ftvuamstcris https://doi.org/10.1002/2013PA002509 2024-06-06T00:14:55Z The Dansgaard-Oeschger oscillations and Heinrich events described in North Atlantic sediments and Greenland ice are expressed in the climate of the tropics, for example, as documented in Arabian Sea sediments. Given the strength of this teleconnection, we seek to reconstruct its range of environmental impacts. We present geochemical and sedimentological data from core SO130-289KL from the Indus submarine slope spanning the last ∼80 kyr. Elemental and grain size analyses consistently indicate that interstadials are characterized by an increased contribution of fluvial suspension from the Indus River. In contrast, stadials are characterized by an increased contribution of aeolian dust from the Arabian Peninsula. Decadal-scale shifts at climate transitions, such as onsets of interstadials, were coeval with changes in productivity-related proxies. Heinrich events stand out as especially dry and dusty events, indicating a dramatically weakened Indian summer monsoon, potentially increased winter monsoon circulation, and increased aridity on the Arabian Peninsula. This finding is consistent with other paleoclimate evidence for continental aridity in the northern tropics during these events. Our results strengthen the evidence that circum-North Atlantic temperature variations translate to hydrological shifts in the tropics, with major impacts on regional environmental conditions such as rainfall, river discharge, aeolian dust transport, and ocean margin anoxia. Key Points Intensity of Indian monsoon is traced with geochemical and grain size analyses of sediments Fluvial versus aeolian sediment input to Arabian Sea mimics DO oscillations During Heinrich events the Indian monsoon weakened distinctly Article in Journal/Newspaper Greenland North Atlantic Vrije Universiteit Amsterdam (VU): Research Portal Greenland Indian Paleoceanography 29 2 99 114 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
Arabian Sea Dansgaard-Oeschger oscillations Heinrich events Indian Monsoon Sediment Transport XRF /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
Arabian Sea Dansgaard-Oeschger oscillations Heinrich events Indian Monsoon Sediment Transport XRF /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Deplazes, Gaudenz Lückge, Andreas Stuut, Jan Berend W. Pätzold, Jürgen Kuhlmann, Holger Husson, Dorothée Fant, Mara Haug, Gerald H. Weakening and strengthening of the Indian monsoon during Heinrich events and Dansgaard-Oeschger oscillations |
topic_facet |
Arabian Sea Dansgaard-Oeschger oscillations Heinrich events Indian Monsoon Sediment Transport XRF /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
The Dansgaard-Oeschger oscillations and Heinrich events described in North Atlantic sediments and Greenland ice are expressed in the climate of the tropics, for example, as documented in Arabian Sea sediments. Given the strength of this teleconnection, we seek to reconstruct its range of environmental impacts. We present geochemical and sedimentological data from core SO130-289KL from the Indus submarine slope spanning the last ∼80 kyr. Elemental and grain size analyses consistently indicate that interstadials are characterized by an increased contribution of fluvial suspension from the Indus River. In contrast, stadials are characterized by an increased contribution of aeolian dust from the Arabian Peninsula. Decadal-scale shifts at climate transitions, such as onsets of interstadials, were coeval with changes in productivity-related proxies. Heinrich events stand out as especially dry and dusty events, indicating a dramatically weakened Indian summer monsoon, potentially increased winter monsoon circulation, and increased aridity on the Arabian Peninsula. This finding is consistent with other paleoclimate evidence for continental aridity in the northern tropics during these events. Our results strengthen the evidence that circum-North Atlantic temperature variations translate to hydrological shifts in the tropics, with major impacts on regional environmental conditions such as rainfall, river discharge, aeolian dust transport, and ocean margin anoxia. Key Points Intensity of Indian monsoon is traced with geochemical and grain size analyses of sediments Fluvial versus aeolian sediment input to Arabian Sea mimics DO oscillations During Heinrich events the Indian monsoon weakened distinctly |
format |
Article in Journal/Newspaper |
author |
Deplazes, Gaudenz Lückge, Andreas Stuut, Jan Berend W. Pätzold, Jürgen Kuhlmann, Holger Husson, Dorothée Fant, Mara Haug, Gerald H. |
author_facet |
Deplazes, Gaudenz Lückge, Andreas Stuut, Jan Berend W. Pätzold, Jürgen Kuhlmann, Holger Husson, Dorothée Fant, Mara Haug, Gerald H. |
author_sort |
Deplazes, Gaudenz |
title |
Weakening and strengthening of the Indian monsoon during Heinrich events and Dansgaard-Oeschger oscillations |
title_short |
Weakening and strengthening of the Indian monsoon during Heinrich events and Dansgaard-Oeschger oscillations |
title_full |
Weakening and strengthening of the Indian monsoon during Heinrich events and Dansgaard-Oeschger oscillations |
title_fullStr |
Weakening and strengthening of the Indian monsoon during Heinrich events and Dansgaard-Oeschger oscillations |
title_full_unstemmed |
Weakening and strengthening of the Indian monsoon during Heinrich events and Dansgaard-Oeschger oscillations |
title_sort |
weakening and strengthening of the indian monsoon during heinrich events and dansgaard-oeschger oscillations |
publishDate |
2014 |
url |
https://research.vu.nl/en/publications/a96a9735-6ff1-4a94-a6f6-cc81bf90e352 https://doi.org/10.1002/2013PA002509 https://hdl.handle.net/1871.1/a96a9735-6ff1-4a94-a6f6-cc81bf90e352 http://www.scopus.com/inward/record.url?scp=84894079333&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=84894079333&partnerID=8YFLogxK |
geographic |
Greenland Indian |
geographic_facet |
Greenland Indian |
genre |
Greenland North Atlantic |
genre_facet |
Greenland North Atlantic |
op_source |
Deplazes , G , Lückge , A , Stuut , J B W , Pätzold , J , Kuhlmann , H , Husson , D , Fant , M & Haug , G H 2014 , ' Weakening and strengthening of the Indian monsoon during Heinrich events and Dansgaard-Oeschger oscillations ' , Paleoceanography , vol. 29 , no. 2 , pp. 99-114 . https://doi.org/10.1002/2013PA002509 |
op_relation |
https://research.vu.nl/en/publications/a96a9735-6ff1-4a94-a6f6-cc81bf90e352 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1002/2013PA002509 |
container_title |
Paleoceanography |
container_volume |
29 |
container_issue |
2 |
container_start_page |
99 |
op_container_end_page |
114 |
_version_ |
1802644995795058688 |