气候变化领域集成服务门户(CCPortal): Estimating the criterion for determining water vapour sources of summer precipitation on the northern Tibetan Plateau

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DOI	10.1002/hyp.5918
	Estimating the criterion for determining water vapour sources of summer precipitation on the northern Tibetan Plateau
	Yang, MX; Yao, TD; Wang, HJ; Tian, LD; Gou, XH
发表日期	2006
ISSN	0885-6087
起始页码	505
结束页码	513
卷号	20 期号:3 页码:505-513
英文摘要	According to the precipitation and delta O-18 data obtained during the GEWEX Asian Monsoon Experiment-Tibet Intensive Observation Period, based on the knowledge that VO is lower in precipitation formed from ocean air mass vapour than that from local evaporation vapour, the water vapour sources can be identified from the 6180 values in precipitation. We attempt to give the identification criterion of VO values in precipitation. The threshold values chosen to distinguish between ocean and local sources are delta O-18 < -20 parts per thousand and delta O-18 > -13 parts per thousand respectively. According to this criterion, the proportion of local evaporation-formed precipitation and ocean air-mass-formed precipitation in total precipitation was estimated. The average value of precipitation at three sites (NODA, Amdo and AQB) is 249.76 mm. Among this, precipitation formed directly by the ocean air mass vapour is 80.08 mm at most. Precipitation formed by water vapour evaporated from local places is 117.05 mm at least. That is to say that precipitation formed directly by the ocean air mass vapour accounts for 32.06% of the total precipitation at most. Precipitation formed by water vapour evaporated from local places accounts for 46.86% of the total precipitation at least. At least 21.8% of the total precipitation came from water vapour that was evaporated on the way and transported by the monsoon circulation. Copyright (c) 2005 John Wiley & Sons, Ltd.
关键词	GENERAL-CIRCULATION MODEL AMAZON BASIN ICE CORES CYCLE CLIMATE
英文关键词	Tibetan Plateau; delta O-18; different source water vapour; precipitation; quantitative estimation
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:000235759600005
来源期刊	HYDROLOGICAL PROCESSES
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/442
推荐引用方式 GB/T 7714	Yang, MX,Yao, TD,Wang, HJ,et al. Estimating the criterion for determining water vapour sources of summer precipitation on the northern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2006,20(3):505-513.
APA	Yang, MX,Yao, TD,Wang, HJ,Tian, LD,&Gou, XH.(2006).Estimating the criterion for determining water vapour sources of summer precipitation on the northern Tibetan Plateau.HYDROLOGICAL PROCESSES,20(3),505-513.
MLA	Yang, MX,et al."Estimating the criterion for determining water vapour sources of summer precipitation on the northern Tibetan Plateau".HYDROLOGICAL PROCESSES 20.3(2006):505-513.