气候变化领域集成服务门户(CCPortal): A study of longitudinal and altitudinal variations in surface water stable isotopes in West Pamir, Tajikistan

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DOI	10.1016/j.atmosres.2014.07.029
	A study of longitudinal and altitudinal variations in surface water stable isotopes in West Pamir, Tajikistan
	Liu, Q.; Tian, L. D.; Wang, J. L.; Wen, R.; Weng, Y. B.; Shen, Y. P.; Vladislav, M.; Kanaev, E.
通讯作者	Tian, LD (通讯作者)
发表日期	2015
ISSN	0169-8095
EISSN	1873-2895
起始页码	10
结束页码	18
卷号	153
英文摘要	In an effort to establish a clear relation between stable isotopes and altitude in the Pamir region, as well as to improve the understanding of stable isotope spatial variations found along the routes taken by the westerlies, surface river water samples were collected along a roughly west-east profile in Tajikistan. Here we present the spatial changes in modern surface water delta O-18 and deuterium excess (d-excess), and their links with snow melt, glacier melt and seasonal precipitation patterns in Tajikistan. The results show a close relation between river water delta O-18 and delta D above the GMWL (Global Meteoric Water Line), implying that surface evaporation exerts a weaker influence. Spatially, river water delta O-18 is gradually depleted from west to east due mainly to the effect of altitude, yielding a river water delta O-18 vertical lapse rate of 0.09 parts per thousand/100 m. River water d-excess shows a decreasing trend from west to east in Tajikistan. This spatial d-excess pattern in surface water is explained by the different moistures influenced by the Mediterranean and other in-land seas with higher d-excess in west, and no-Mediterranean moisture in east. Another possible reason is the differences in precipitation seasonality between the west and east of Tajikistan. (C) 2015 Elsevier B.V. All rights reserved.
关键词	PRECIPITATION PALEOELEVATION MONSOON TIBET TEMPERATURE MOUNTAINS EVOLUTION HIMALAYA PLATEAU GLACIER
英文关键词	Tajikistan; delta O-18; delta D; Deuterium excess; River water; Lapse rate
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000347264600002
来源期刊	ATMOSPHERIC RESEARCH
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/258579
推荐引用方式 GB/T 7714	Liu, Q.,Tian, L. D.,Wang, J. L.,et al. A study of longitudinal and altitudinal variations in surface water stable isotopes in West Pamir, Tajikistan[J]. 中国科学院青藏高原研究所,2015,153.
APA	Liu, Q..,Tian, L. D..,Wang, J. L..,Wen, R..,Weng, Y. B..,...&Kanaev, E..(2015).A study of longitudinal and altitudinal variations in surface water stable isotopes in West Pamir, Tajikistan.ATMOSPHERIC RESEARCH,153.
MLA	Liu, Q.,et al."A study of longitudinal and altitudinal variations in surface water stable isotopes in West Pamir, Tajikistan".ATMOSPHERIC RESEARCH 153(2015).