干旱区生态环境知识资源中心(Arid): Origin and variability of oxygen and hydrogen isotopic composition of precipitation in the Central Andes: A review

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DOI	10.1016/j.jhydrol.2020.124899
	Origin and variability of oxygen and hydrogen isotopic composition of precipitation in the Central Andes: A review
	Valdivielso, Sonia; Vazquez-Sune, Enric; Custodio, Emilio
通讯作者	Valdivielso, S
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2020
卷号	587
英文摘要	This review concerns the knowledge of the isotopic composition of current precipitation and its association with climate, geography and orography, in the Central Andes (14-28 degrees S and 75-63 degrees W). This knowledge is required for the evaluation of other hydrological values, especially aquifer recharge and water resources, in environments varying from rainy to hyper-arid. Since the 1960s, oxygen (delta O-18) and deuterium (delta H-2) isotope composition of natural water have been used as tracers of the global hydrological cycle. In the present article, the goal is to identify the origin and trajectory of air masses that produce rainfall in the Central Andes and the isotopic composition of the precipitation, as a first step to evaluate recharge and groundwater resources. The isotopic composition of rainfall varies spatially and temporarily, depending on the climatic phenomena that originate the movement of air masses, their moisture content and the isotope fractionation processes that occur until precipitation falls. Most of the significant and recent literature on the mechanisms of delta O-18 and delta H-2 transport and fractionation in precipitation along the Central Andes has been collected and summarized in this review. Precipitation in the eastern and central Andes comes mainly from the humidity generated in the Atlantic Ocean. Although the processes involved in isotope content variability of precipitation are well known, the processes involved in isotopic variability in the Western Cordillera remain poorly understood. This is mostly due to mixing of different moisture sources: from the Atlantic Ocean in summer and from the Pacific Ocean in winter. In general, winter rainfall is more enriched in delta O-18 and delta H-2 than summer rainfall. Looking at existing data, their distribution is far from being homogeneous and well-distributed, so spatial accuracy is poor in some areas, especially in the Altiplano. Hydrological and hydrogeological research and water resources evaluation in the Central Andes would greatly benefit from initiatives to obtain broader spatial coverage of rainfall collection to get isotope data for more accurate and continuous assessment of the local weather patterns. Groundwater isotope composition is a future tool to help in increasing the coverage in data scarce areas.
英文关键词	Andes Atmospheric circulation Hydrology Precipitation Stable isotopes
类型	Review
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000568819100066
WOS关键词	STABLE WATER ISOTOPES ; DEUTERIUM EXCESS ; ATACAMA DESERT ; STRATIFORM PRECIPITATION ; CLIMATE CONTROLS ; NORTHERN CHILE ; HIGH-ALTITUDE ; CLOSED-BASIN ; AMAZON BASIN ; DELTA-D
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326239
作者单位	[Valdivielso, Sonia; Vazquez-Sune, Enric] CSIC, Inst Environm Assessment & Water Res IDEA, C Jordi Girona 18-26, Barcelona 08034, Spain; [Custodio, Emilio] Royal Acad Sci Spain RAC, Valverde 24, Madrid 28004, Spain; [Custodio, Emilio] Tech Univ Catalonia UPC, Dept Civil & Environm Engn, Groundwater Hydrol Grp, C Jordi Girona 1-3, Barcelona 08034, Spain
推荐引用方式 GB/T 7714	Valdivielso, Sonia,Vazquez-Sune, Enric,Custodio, Emilio. Origin and variability of oxygen and hydrogen isotopic composition of precipitation in the Central Andes: A review[J],2020,587.
APA	Valdivielso, Sonia,Vazquez-Sune, Enric,&Custodio, Emilio.(2020).Origin and variability of oxygen and hydrogen isotopic composition of precipitation in the Central Andes: A review.JOURNAL OF HYDROLOGY,587.
MLA	Valdivielso, Sonia,et al."Origin and variability of oxygen and hydrogen isotopic composition of precipitation in the Central Andes: A review".JOURNAL OF HYDROLOGY 587(2020).