Holocene climate change in southernmost South Africa: rock hyrax middens record shifts in the southern westerlies
International audience South Africa's southern coastal margin is recognised as being a highly dynamic climatic region that plays a critical role in both regional and global atmospheric and oceanic circulation dynamics. Our understanding of the past dynamics of this system, however, has been lim...
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Online Access: | https://hal.umontpellier.fr/hal-01817586 https://doi.org/10.1016/j.quascirev.2013.10.018 |
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ftunimontpellier:oai:HAL:hal-01817586v1 2024-05-19T07:31:12+00:00 Holocene climate change in southernmost South Africa: rock hyrax middens record shifts in the southern westerlies Chase, Brian Boom, Arnoud Carr, Andrew S. Meadows, Michael E. Reimer, Paula J. Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) European Project: 258657,EC:FP7:ERC,ERC-2010-StG_20091028,HYRAX(2010) 2013-12 https://hal.umontpellier.fr/hal-01817586 https://doi.org/10.1016/j.quascirev.2013.10.018 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2013.10.018 info:eu-repo/grantAgreement/EC/FP7/258657/EU/Rock Hyrax Middens and Climate Change in Southern Africa during the last 50,000 years/HYRAX hal-01817586 https://hal.umontpellier.fr/hal-01817586 doi:10.1016/j.quascirev.2013.10.018 ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://hal.umontpellier.fr/hal-01817586 Quaternary Science Reviews, 2013, 82, pp.199 - 205. ⟨10.1016/j.quascirev.2013.10.018⟩ Holocene Rock hyrax midden Westerlies Stable isotopes Quaternary Palaeoclimatology South Africa [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2013 ftunimontpellier https://doi.org/10.1016/j.quascirev.2013.10.018 2024-05-01T00:39:23Z International audience South Africa's southern coastal margin is recognised as being a highly dynamic climatic region that plays a critical role in both regional and global atmospheric and oceanic circulation dynamics. Our understanding of the past dynamics of this system, however, has been limited by the number and nature of datasets available that can be used to infer changes in key climatic parameters in the region. In this paper we present new high resolution d 13 C and d 15 N data from two independently dated rock hyrax (Procavia capensis) middens from Seweweekspoort in South Africa's Groot Swartberg mountains. These data provide information regarding both past vegetation and hydroclimatic change, and allow a regional integration of available data that explore the long-term dynamics of mid-latitude circulation systems in the African sector of the Southern Hemisphere. Combined, a negative relationship is apparent between temperature and humidity in this area of the southern Cape, and these changes can for the first time be clearly linked to variations in Antarctic sea-ice extent and shifts in the southern westerly storm track. This dynamic is particularly evident between 5 and 7 cal kBP, when a reduction in sea-ice extent and a southward shift of the westerlies are manifested regionally by increased temperatures and a phase of marked aridity. Article in Journal/Newspaper Antarc* Antarctic Sea ice Université de Montpellier: HAL Quaternary Science Reviews 82 199 205 |
institution |
Open Polar |
collection |
Université de Montpellier: HAL |
op_collection_id |
ftunimontpellier |
language |
English |
topic |
Holocene Rock hyrax midden Westerlies Stable isotopes Quaternary Palaeoclimatology South Africa [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
Holocene Rock hyrax midden Westerlies Stable isotopes Quaternary Palaeoclimatology South Africa [SDE.MCG]Environmental Sciences/Global Changes Chase, Brian Boom, Arnoud Carr, Andrew S. Meadows, Michael E. Reimer, Paula J. Holocene climate change in southernmost South Africa: rock hyrax middens record shifts in the southern westerlies |
topic_facet |
Holocene Rock hyrax midden Westerlies Stable isotopes Quaternary Palaeoclimatology South Africa [SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience South Africa's southern coastal margin is recognised as being a highly dynamic climatic region that plays a critical role in both regional and global atmospheric and oceanic circulation dynamics. Our understanding of the past dynamics of this system, however, has been limited by the number and nature of datasets available that can be used to infer changes in key climatic parameters in the region. In this paper we present new high resolution d 13 C and d 15 N data from two independently dated rock hyrax (Procavia capensis) middens from Seweweekspoort in South Africa's Groot Swartberg mountains. These data provide information regarding both past vegetation and hydroclimatic change, and allow a regional integration of available data that explore the long-term dynamics of mid-latitude circulation systems in the African sector of the Southern Hemisphere. Combined, a negative relationship is apparent between temperature and humidity in this area of the southern Cape, and these changes can for the first time be clearly linked to variations in Antarctic sea-ice extent and shifts in the southern westerly storm track. This dynamic is particularly evident between 5 and 7 cal kBP, when a reduction in sea-ice extent and a southward shift of the westerlies are manifested regionally by increased temperatures and a phase of marked aridity. |
author2 |
Institut des Sciences de l'Evolution de Montpellier (UMR ISEM) Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement IRD : UR226-Centre National de la Recherche Scientifique (CNRS) European Project: 258657,EC:FP7:ERC,ERC-2010-StG_20091028,HYRAX(2010) |
format |
Article in Journal/Newspaper |
author |
Chase, Brian Boom, Arnoud Carr, Andrew S. Meadows, Michael E. Reimer, Paula J. |
author_facet |
Chase, Brian Boom, Arnoud Carr, Andrew S. Meadows, Michael E. Reimer, Paula J. |
author_sort |
Chase, Brian |
title |
Holocene climate change in southernmost South Africa: rock hyrax middens record shifts in the southern westerlies |
title_short |
Holocene climate change in southernmost South Africa: rock hyrax middens record shifts in the southern westerlies |
title_full |
Holocene climate change in southernmost South Africa: rock hyrax middens record shifts in the southern westerlies |
title_fullStr |
Holocene climate change in southernmost South Africa: rock hyrax middens record shifts in the southern westerlies |
title_full_unstemmed |
Holocene climate change in southernmost South Africa: rock hyrax middens record shifts in the southern westerlies |
title_sort |
holocene climate change in southernmost south africa: rock hyrax middens record shifts in the southern westerlies |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.umontpellier.fr/hal-01817586 https://doi.org/10.1016/j.quascirev.2013.10.018 |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_source |
ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://hal.umontpellier.fr/hal-01817586 Quaternary Science Reviews, 2013, 82, pp.199 - 205. ⟨10.1016/j.quascirev.2013.10.018⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2013.10.018 info:eu-repo/grantAgreement/EC/FP7/258657/EU/Rock Hyrax Middens and Climate Change in Southern Africa during the last 50,000 years/HYRAX hal-01817586 https://hal.umontpellier.fr/hal-01817586 doi:10.1016/j.quascirev.2013.10.018 |
op_doi |
https://doi.org/10.1016/j.quascirev.2013.10.018 |
container_title |
Quaternary Science Reviews |
container_volume |
82 |
container_start_page |
199 |
op_container_end_page |
205 |
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1799469056612368384 |