气候变化领域集成服务门户(CCPortal): Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP-the Tangra Yumco lake sediment record

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DOI	10.1111/bor.12204
	Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP-the Tangra Yumco lake sediment record
	Ahlborn, Marieke; Haberzettl, Torsten; Wang, Junbo; Henkel, Karoline; Kasper, Thomas; Daut, Gerhard; Zhu, Liping; Maeusbacher, Roland
通讯作者	Ahlborn, M (通讯作者)
发表日期	2017
ISSN	0300-9483
EISSN	1502-3885
起始页码	229
结束页码	241
卷号	46 期号:2
英文摘要	A possible asynchronicity of the spatial and temporal moisture availability on the Tibetan Plateau has been a controversial subject of discussion in recent years. Here we present the first attempt to systematically investigate possible spatial and temporal variations in moisture availability by examining two lakes, Tangra Yumco and Nam Co, on an east-west transect on the southern Tibetan Plateau using identical proxies for palaeoenvironmental reconstruction. In this study, an independent record from Tangra Yumco was analysed applying a multi-proxy approach to reconstruct variations in moisture availability since the Lateglacial. Results were subsequently compared with previously published records from Nam Co and additional records from Tso Moriri (northwestern Himalaya) and Naleng Co (southeastern Tibetan Plateau). Our results show that Tangra Yumco was at least partially ice covered prior to 17.1 cal. ka BP. A temperature rise after 17.1 cal. ka BP probably resulted in thawing of the permafrost. At 16.0 cal. ka BP moisture availability increased, representing an initial monsoonal intensification. Warmer conditions between 13.0 and 12.4 cal. ka BP and cooler conditions between 12.4 cal. ka BP and the onset of the Holocene reflect the Bolling-Allerod and Younger Dryas. At the onset of the Holocene moisture availability rapidly increased, with moisture highest prior to 8.5 cal. ka BP when temperatures were also highest. After 8.5 cal. ka BP the moisture availability gradually decreased and showed only minor amplitude variations. These findings are consistent with the records from large lakes like Nam Co, Tso Moriri, and Naleng Co, revealing a synchronous pattern of moisture availability on the southern Tibetan Plateau.
关键词	GRAIN-SIZE DISTRIBUTION PALEOMAGNETIC SECULAR VARIATION NAM CO HYDROLOGICAL CHANGES ENVIRONMENTAL-CHANGES SURFACE SEDIMENTS ORGANIC-MATTER ASIAN MONSOON CLIMATE VARIABILITY
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000398048200006
来源期刊	BOREAS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258982
推荐引用方式 GB/T 7714	Ahlborn, Marieke,Haberzettl, Torsten,Wang, Junbo,et al. Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP-the Tangra Yumco lake sediment record[J]. 中国科学院青藏高原研究所,2017,46(2).
APA	Ahlborn, Marieke.,Haberzettl, Torsten.,Wang, Junbo.,Henkel, Karoline.,Kasper, Thomas.,...&Maeusbacher, Roland.(2017).Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP-the Tangra Yumco lake sediment record.BOREAS,46(2).
MLA	Ahlborn, Marieke,et al."Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP-the Tangra Yumco lake sediment record".BOREAS 46.2(2017).