Progress in isotope tracer hydrology in Canada
Progress in isotope tracer hydrology in Canada
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DOI：
10.1002/hyp.5766
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发表时间：
2005-01-01
影响因子：
3.2
通讯作者：
Peters, DL
中科院分区：
文献类型：
--
作者：
Gibson, JJ;Edwards, TWD;Peters, DL
概述了目前的研究在同位素水文学，侧重于最近加拿大的贡献，讨论的标题下：降水网络，水文分离和地下水研究，流域水文，湖泊和集水区水平衡，从湖泊沉积物记录的同位素古水文。主要依靠自然环境同位素的示踪技术已被纳入一系列水文和地球化学研究方案，因为这些技术有效地补充了物理和化学技术。加拿大同位素水文学研究的一个重要地理重点是麦肯齐河流域，为全球能源和水循环实验等方案作出了贡献。加拿大的研究还直接支持国际努力，如国际原子能机构（原子能机构）的降水同位素全球网络和原子能机构的大河流域协调研究项目。加拿大研究的一个重要趋势是对降水和河流流量进行持续的长期监测，以便能够更好地描述同位素特征的空间和时间变化及其根本原因。从加拿大以前的研究中得出的一个基本结论是，结合使用δ（18）O和δ（2）H可以区分降水变化和蒸发效应，这比单独使用单个示踪剂具有显著优势。水文控制水化学的研究是一个新兴的研究趋势，源于在水质和水量调查中整合同位素采样的独特能力。版权所有（C）2005约翰威利父子有限公司。
An overview of current research in isotope hydrology, focusing on recent Canadian contributions, is discussed under the headings: precipitation networks, hydrograph separation and groundwater studies, river basin hydrology, lake and catchment water balance, and isotope palaeohydrology from lake sediment records. Tracer-based techniques, relying primarily on the naturally occurring environmental isotopes, have been integrated into a range of hydrological and biogeochemical research programmes, as they effectively complement physical and chemical techniques. A significant geographic focus of Canadian isotope hydrology research has been on the Mackenzie River basin, forming contributions to programmes such as the Global Energy and Water Cycle Experiment. Canadian research has also directly supported international efforts such as the International Atomic Energy Agency's (IAEA) Global Network for Isotopes in Precipitation and IAEAs Coordinated Research Project on Large River Basins. One significant trend in Canadian research is toward sustained long-term monitoring of precipitation and river discharge to enable better characterization of spatial and temporal variability in isotope signatures and their underlying causes. One fundamental conclusion drawn from previous studies in Canada is that combined use of delta(18)O and delta(2)H enables the distinction of precipitation variability from evaporation effects, which offers significant advantages over use of the individual tracers alone. The study of hydrological controls on water chemistry is one emerging research trend that stems from the unique ability to integrate isotope sampling within both water quality and water quantity surveys. Copyright (C) 2005 John Wiley Sons, Ltd.