气候变化领域集成服务门户(CCPortal): High-resolution record of Holocene climate change dynamics from southern Africa's temperate-tropical boundary; Baviaanskloof; South Africa

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DOI	10.1016/j.palaeo.2019.109518
	High-resolution record of Holocene climate change dynamics from southern Africa's temperate-tropical boundary; Baviaanskloof; South Africa
	Chase B.M.; Boom A.; Carr A.S.; Quick L.J.; Reimer P.J.
发表日期	2020
ISSN	0031-0182
卷号	539
英文摘要	South Africa's southern Cape is a highly dynamic climatic region that is influenced by changes in both temperate and tropical atmospheric and oceanic circulation dynamics. Recent research initiatives suggest that the major elements of the regional climate system have acted both independently and in combination to establish a mosaic of distinct climate regions and potentially steep climate response gradients across the southern Cape. To consider this further, we present new high resolution δ13C and δ15N data from a rock hyrax (Procavia capensis) midden from Baviaanskloof, in the Cape Fold Mountains of South Africa's Eastern Cape Province. Spanning the last 7200 years, these data provide detailed information regarding environmental changes in the mid- and late Holocene, allowing us to assess the spatio-temporal nature of climate change anomalies across the wider region. Throughout the full duration of the record, a negative correlation between humidity and palaeotemperature reconstructions from nearby Cango Cave is observed. In conjunction with correlations with Southern Ocean sea-surface temperatures and sea-ice presence, we infer a dominant influence of the southern westerlies in determining multi-millennial scale hydroclimate variability. At shorter, multi-centennial to millennial timescales, the Baviaanskloof data indicate a clearer expression of tropical influences, highlighting a delicate balance between the mechanisms driving regional climate dynamics across timescales, and the sensitivity of the region to changes in global boundary conditions. © 2019 Elsevier B.V.
英文关键词	Holocene; Palaeoclimate; Rock hyrax middens; South Africa; Stable isotopes
语种	英语
scopus关键词	climate change; climatic region; historical record; Holocene; hydrometeorology; paleoclimate; paleoenvironment; paleotemperature; reconstruction; regional climate; sea ice; sea surface temperature; stable isotope; temperate environment; tropical environment; westerly; Cape Province; Eastern Cape; South Africa; Southern Ocean; Procavia capensis
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150639
作者单位	Institut des Sciences de l'Evolution-Montpellier (ISEM), University of Montpellier, Centre National de la Recherche Scientifique (CNRS), EPHE, IRD, Montpellier, France; School of Geography, Geology and the Environment, University of Leicester, Leicester, LE1 7RH, United Kingdom; African Centre for Coastal Palaeoscience, Nelson Mandela University, Port Elizabeth, Eastern Cape 6031, South Africa; School of Natural and Built Environment, Queen's University Belfast, Belfast, Northern Ireland BT7 1NN, United Kingdom
推荐引用方式 GB/T 7714	Chase B.M.,Boom A.,Carr A.S.,et al. High-resolution record of Holocene climate change dynamics from southern Africa's temperate-tropical boundary; Baviaanskloof; South Africa[J],2020,539.
APA	Chase B.M.,Boom A.,Carr A.S.,Quick L.J.,&Reimer P.J..(2020).High-resolution record of Holocene climate change dynamics from southern Africa's temperate-tropical boundary; Baviaanskloof; South Africa.Palaeogeography, Palaeoclimatology, Palaeoecology,539.
MLA	Chase B.M.,et al."High-resolution record of Holocene climate change dynamics from southern Africa's temperate-tropical boundary; Baviaanskloof; South Africa".Palaeogeography, Palaeoclimatology, Palaeoecology 539(2020).