干旱区生态环境知识资源中心(Arid): A predominantly tropical influence on late Holocene hydroclimate variation in the hyperarid central Sahara

Arid

DOI	10.1126/sciadv.abk1261
	A predominantly tropical influence on late Holocene hydroclimate variation in the hyperarid central Sahara
	Van der Meeren, Thijs; Verschuren, Dirk; Sylvestre, Florence; Nassour, Yacoub A.; Naudts, Evi L.; Ortiz, Luis E. Aguilar; Deschamps, Pierre; Tachikawa, Kazuyo; Bard, Edouard; Schuster, Mathieu; Abderamane, Moussa
通讯作者	Van der Meeren, T
来源期刊	SCIENCE ADVANCES
ISSN	2375-2548
出版年	2022
卷号	8 期号:14
英文摘要	The climate history of the Sahara desert during recent millennia is obscured by the near absence of natural climate archives, hampering insight in the relative importance of southerly (tropical) and northerly (midlatitude) weather systems at submillennial time scales. A new lake sediment record from Ounianga Serir oasis in northern Chad, spanning the Late Holocene without interruption, confirms that immediately before ca 4200 years ago, the Sahara experienced an episode of hyperaridity even more extreme than today's desert climate. The hypersaline terminal lake which formed afterwards never desiccated during the late Holocene due to continuous inflow of fossil groundwater, yet its water balance was sensitive to temporal variation in local rainfall and lake surface evaporation. Our in-lake geochemical proxies show that, during the last 3000 years, century-scale hydroclimate variation in the central Sahara primarily tracked the intensity of the tropical West African monsoon, modulated at shorter time scales by weather patterns linked to shifts in midlatitude Atlantic Ocean circulation.
类型	Article
语种	英语
开放获取类型	Green Published
收录类别	SCI-E
WOS记录号	WOS:000778897800003
WOS关键词	WEST-AFRICAN SAHEL ; NORTHERN CHAD ; ICE-AGE ; LAKE YOA ; CLIMATE ; VARIABILITY ; DROUGHT ; EVOLUTION ; RECORD ; RECONSTRUCTION
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394339
推荐引用方式 GB/T 7714	Van der Meeren, Thijs,Verschuren, Dirk,Sylvestre, Florence,et al. A predominantly tropical influence on late Holocene hydroclimate variation in the hyperarid central Sahara[J],2022,8(14).
APA	Van der Meeren, Thijs.,Verschuren, Dirk.,Sylvestre, Florence.,Nassour, Yacoub A..,Naudts, Evi L..,...&Abderamane, Moussa.(2022).A predominantly tropical influence on late Holocene hydroclimate variation in the hyperarid central Sahara.SCIENCE ADVANCES,8(14).
MLA	Van der Meeren, Thijs,et al."A predominantly tropical influence on late Holocene hydroclimate variation in the hyperarid central Sahara".SCIENCE ADVANCES 8.14(2022).