干旱区生态环境知识资源中心(Arid): Stable isotope variations in precipitation in the northwesternmost Tibetan Plateau related to various meteorological controlling factors

Arid

DOI	10.1016/j.atmosres.2019.04.026
	Stable isotope variations in precipitation in the northwesternmost Tibetan Plateau related to various meteorological controlling factors
	Sun, Congjian 1,2; Chen, Yaning2 ; Li, Jie 3; Chen, Wei 1; Li, Xingong 1,4
通讯作者	Sun, Congjian
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2019
卷号	227 页码:66-78
英文摘要	Precipitation plays an important role in global water cycle, and the stable hydrogen and oxygen isotopes of precipitation provide useful information in hydrological processes. To evaluate the controlling factors on stable isotopes of precipitation in the northwesternmost Tibetan Plateau (NWTP), the spatial-temporal variation of delta O-18 and delta H-2 in precipitation was investigated based on 120 event-based precipitation samples collected from 3 stations (Jiangka, Shaman and Xihexiu) during 2011-2014 and 45 monthly average precipitation data of Hetian station (GNIP) and 23 individual precipitation events of Shiquanhe station during 2001. The values of delta O-18 and delta H-2 in precipitation are more positive in the summer (June to July) and negative in the winter (November to March). The seasonal d-excess pattern observed in the NWTP is remarkably different from that in adjacent regions. The local meteoric water line (LMWL) was calculated as delta H-2 = 8.22 delta O-18 + 12.41 (R-2 = 0.98, n = 194) based on the event-based samples. Temperature and altitude effects show significant influence on the precipitation delta O-18 in the study area. Sub-cloud evaporation and recycling moisture also are important controlling factors during the precipitation process. The sub-cloud evaporation decreased d-excess between 1.7% and 45.8%, and the d-excess decreased linearly with increasing sub-cloud evaporation at about 1.15 parts per thousand per 1% change of sub-cloud evaporation. The recycled moisture has an important influence on the precipitation on the Xihexiu, Shaman and Jiangka stations. The result of this study is helpful to the understanding of regional water cycling and optimal water resource management during water shortages.
英文关键词	Stable isotope Precipitation Controlling factors Northwesternmost Tibetan Plateau
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000472688500006
WOS关键词	SEASONAL DEUTERIUM EXCESS ; ARID CENTRAL-ASIA ; ICE-CORE ; MOISTURE TRANSPORT ; SPATIAL VARIATIONS ; WATER-VAPOR ; DELTA-O-18 ; MONSOON ; O-18 ; RECORD
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	中国科学院新疆生态与地理研究所 ; 北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214541
作者单位	1.Shanxi Normal Univ, Sch Geog Sci, 1 Gongyuan St, Linfen 041000, Shanxi, Peoples R China; 2.Chinese Acad Sci, State Key Lab Desert & Oasis Ecol, Xinjiang Inst Ecol & Geog, Urumqi, Xinjiang, Peoples R China; 3.Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China; 4.Univ Kansas, Dept Geog & Atmospher Sci, 1475 Jayhawk Blvd,Room 409, Lawrence, KS 66045 USA
推荐引用方式 GB/T 7714	Sun, Congjian,Chen, Yaning,Li, Jie,et al. Stable isotope variations in precipitation in the northwesternmost Tibetan Plateau related to various meteorological controlling factors[J]. 中国科学院新疆生态与地理研究所, 北京师范大学,2019,227:66-78.
APA	Sun, Congjian,Chen, Yaning,Li, Jie,Chen, Wei,&Li, Xingong.(2019).Stable isotope variations in precipitation in the northwesternmost Tibetan Plateau related to various meteorological controlling factors.ATMOSPHERIC RESEARCH,227,66-78.
MLA	Sun, Congjian,et al."Stable isotope variations in precipitation in the northwesternmost Tibetan Plateau related to various meteorological controlling factors".ATMOSPHERIC RESEARCH 227(2019):66-78.