Evolving southwest African response to abrupt deglacial North Atlantic climate change events
Climate change during the last deglaciation was strongly influenced by the 'bipolar seesaw', producing antiphase climate responses between the North and South Atlantic. However, mounting evidence demands refinements of this model, with the occurrence of abrupt events in southern low to mid...
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ftleicesterunfig:oai:figshare.com:article/10140422 2023-05-15T17:29:10+02:00 Evolving southwest African response to abrupt deglacial North Atlantic climate change events B. M. Chase Arnoud Boom Andrew S. Carr M. Carré M. Chevalier M. E. Meadows J. B. Pedro J. Stager P. J. Reimer 2015-06-01T00:00:00Z https://figshare.com/articles/journal_contribution/Evolving_southwest_African_response_to_abrupt_deglacial_North_Atlantic_climate_change_events/10140422 unknown 2381/32762 https://figshare.com/articles/journal_contribution/Evolving_southwest_African_response_to_abrupt_deglacial_North_Atlantic_climate_change_events/10140422 CC BY-NC-ND 4.0 CC-BY-NC-ND Uncategorized Atlantic overturning meridional circulation Bipolar seesaw Hyrax middens Palaeoclimate Southern Africa Text Journal contribution 2015 ftleicesterunfig 2021-11-11T19:51:57Z Climate change during the last deglaciation was strongly influenced by the 'bipolar seesaw', producing antiphase climate responses between the North and South Atlantic. However, mounting evidence demands refinements of this model, with the occurrence of abrupt events in southern low to mid latitudes occurring in-phase with North Atlantic climate. Improved constraints on the north-south phasing and spatial extent of these events are therefore critical to understanding the mechanisms that propagate abrupt events within the climate system. We present a 19,400 year multi-proxy record of climate change obtained from a rock hyrax midden in southernmost Africa. Arid anomalies in phase with the Younger Dryas and 8.2ka events are apparent, indicating a clear shift in the influence of the bipolar seesaw, which diminished as the Earth warmed, and was succeeded after ~14.6ka by the emergence of a dominant interhemispheric atmospheric teleconnection. Other Non-Article Part of Journal/Newspaper North Atlantic University of Leicester: Figshare |
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Open Polar |
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University of Leicester: Figshare |
op_collection_id |
ftleicesterunfig |
language |
unknown |
topic |
Uncategorized Atlantic overturning meridional circulation Bipolar seesaw Hyrax middens Palaeoclimate Southern Africa |
spellingShingle |
Uncategorized Atlantic overturning meridional circulation Bipolar seesaw Hyrax middens Palaeoclimate Southern Africa B. M. Chase Arnoud Boom Andrew S. Carr M. Carré M. Chevalier M. E. Meadows J. B. Pedro J. Stager P. J. Reimer Evolving southwest African response to abrupt deglacial North Atlantic climate change events |
topic_facet |
Uncategorized Atlantic overturning meridional circulation Bipolar seesaw Hyrax middens Palaeoclimate Southern Africa |
description |
Climate change during the last deglaciation was strongly influenced by the 'bipolar seesaw', producing antiphase climate responses between the North and South Atlantic. However, mounting evidence demands refinements of this model, with the occurrence of abrupt events in southern low to mid latitudes occurring in-phase with North Atlantic climate. Improved constraints on the north-south phasing and spatial extent of these events are therefore critical to understanding the mechanisms that propagate abrupt events within the climate system. We present a 19,400 year multi-proxy record of climate change obtained from a rock hyrax midden in southernmost Africa. Arid anomalies in phase with the Younger Dryas and 8.2ka events are apparent, indicating a clear shift in the influence of the bipolar seesaw, which diminished as the Earth warmed, and was succeeded after ~14.6ka by the emergence of a dominant interhemispheric atmospheric teleconnection. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
B. M. Chase Arnoud Boom Andrew S. Carr M. Carré M. Chevalier M. E. Meadows J. B. Pedro J. Stager P. J. Reimer |
author_facet |
B. M. Chase Arnoud Boom Andrew S. Carr M. Carré M. Chevalier M. E. Meadows J. B. Pedro J. Stager P. J. Reimer |
author_sort |
B. M. Chase |
title |
Evolving southwest African response to abrupt deglacial North Atlantic climate change events |
title_short |
Evolving southwest African response to abrupt deglacial North Atlantic climate change events |
title_full |
Evolving southwest African response to abrupt deglacial North Atlantic climate change events |
title_fullStr |
Evolving southwest African response to abrupt deglacial North Atlantic climate change events |
title_full_unstemmed |
Evolving southwest African response to abrupt deglacial North Atlantic climate change events |
title_sort |
evolving southwest african response to abrupt deglacial north atlantic climate change events |
publishDate |
2015 |
url |
https://figshare.com/articles/journal_contribution/Evolving_southwest_African_response_to_abrupt_deglacial_North_Atlantic_climate_change_events/10140422 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
2381/32762 https://figshare.com/articles/journal_contribution/Evolving_southwest_African_response_to_abrupt_deglacial_North_Atlantic_climate_change_events/10140422 |
op_rights |
CC BY-NC-ND 4.0 |
op_rightsnorm |
CC-BY-NC-ND |
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1766122799248703488 |