干旱区生态环境知识资源中心(Arid): Penetration of monsoonal water vapour into arid central Asia during the Holocene: An isotopic perspective

Arid

DOI	10.1016/j.quascirev.2020.106713
	Penetration of monsoonal water vapour into arid central Asia during the Holocene: An isotopic perspective
	Zhang, Xiaojian
通讯作者	Zhang, XJ (corresponding author), Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Peoples R China.
来源期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
EISSN	1873-457X
出版年	2021
卷号	251
英文摘要	Monsoonal water vapour transport is an active component of the hydrological cycle, which has a profound influence on regional climate changes. This study explored how far can the East Asian summer monsoon (EASM) transport water vapour to the west during the Holocene using published speleothem oxygen isotope (delta O-18) records inferred from modern analogues of precipitation delta O-18 in the summer monsoon season (May to September) at mid-latitudes. Modern climate analyses suggest that there are two water vapour transport pathways to arid central Asia in the summer monsoon season: westerly transport and monsoonal easterly transport. Westerly transport from the North Atlantic and Arctic Oceans is associated with O-18-depleted water vapour, while monsoonal easterly transport from the tropical Indian Ocean, South China Sea, and East Asia is associated with O-18-enriched water vapour. The mixture of these water vapour dominates precipitation delta O-18 in arid central Asia from May to September. The difference of delta O-18 between precipitation in arid central Asia and the southern Urals reflects the penetration of monsoonal water vapour into arid central Asia. Speleothem delta O-18 records from Kesang Cave in the central Tianshan Mountains and Kinderlinskaya Cave in the southern Urals were therefore selected to indicate monsoonal water vapour transport into arid central Asia during the Holocene. Their differences suggest prominent monsoonal water vapour were transported to arid central Asia during the early Holocene, 8.2 ka BP event and late Holocene when the EASM was very weak. The results indicate that monsoonal water vapour could be transported at least as far west as the central Tianshan Mountains (similar to 81.75 degrees E) in arid central Asia during the Holocene under weak EASM conditions rather than as previously supposed under strong EASM conditions. Although the amount of monsoonal water vapour is relatively less compared with that of westerly water vapour, it cannot be neglected because this source plays an important role in changes of precipitation and its delta O-18 in arid central Asia during the summer monsoon season. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Oxygen isotope Water vapour transport East Asian summer monsoon Speleothem Westerlies
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000600739300015
WOS关键词	SUMMER MONSOON ; MOISTURE EVOLUTION ; SPELEOTHEM RECORDS ; DEUTERIUM EXCESS ; STABLE-ISOTOPES ; CLIMATE-CHANGE ; PRECIPITATION ; PLATEAU ; REGION ; CHINA
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
来源机构	南京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348120
作者单位	[Zhang, Xiaojian] Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaojian. Penetration of monsoonal water vapour into arid central Asia during the Holocene: An isotopic perspective[J]. 南京大学,2021,251.
APA	Zhang, Xiaojian.(2021).Penetration of monsoonal water vapour into arid central Asia during the Holocene: An isotopic perspective.QUATERNARY SCIENCE REVIEWS,251.
MLA	Zhang, Xiaojian."Penetration of monsoonal water vapour into arid central Asia during the Holocene: An isotopic perspective".QUATERNARY SCIENCE REVIEWS 251(2021).

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