globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2013.10.018
Scopus记录号: 2-s2.0-84888132873
论文题名:
Holocene climate change in southernmost South Africa: Rock hyrax middens record shifts in the southern westerlies
作者: Chase B.M.; Boom A.; Carr A.S.; Meadows M.E.; Reimer P.J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 82
起始页码: 199
结束页码: 205
语种: 英语
英文关键词: Holocene ; Palaeoclimatology ; Quaternary ; Rock hyrax midden ; South Africa ; Stable isotopes ; Westerlies
Scopus关键词: Holocenes ; Palaeoclimatology ; Quaternary ; South Africa ; Stable isotopes ; Westerlies ; Climate change ; Isotopes ; Dynamics ; aridity ; carbon isotope ; climate variation ; Holocene ; midden ; nitrogen isotope ; paleoclimate ; sea ice ; small mammal ; stable isotope ; storm track ; temperature effect ; vegetation history ; westerly ; South Africa ; Procavia capensis ; Procaviidae
英文摘要: 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 δ13C and δ15N 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 7calkBP, 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.© 2013 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60441
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作者单位: Institut des Sciences de l'Evolution de Montpellier, UMR 5554, Centre National de Recherche Scientifique/Université Montpellier 2, Bat. 22, CC061, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France; Department of Archaeology, History, Culture and Religion, University of Bergen, Postbox 7805, 5020 Bergen, Norway; Department of Geography, University of Leicester, Leicester LE1 7RH, United Kingdom; Department of Environmental and Geographical Science, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa; School of Geography, Archaeology and Palaeoecology, Queen's University Belfast, Belfast BT7 1NN, Northern Ireland, United Kingdom

Recommended Citation:
Chase B.M.,Boom A.,Carr A.S.,et al. Holocene climate change in southernmost South Africa: Rock hyrax middens record shifts in the southern westerlies[J]. Quaternary Science Reviews,2013-01-01,82
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