Isotope hydrograph separation in alpine catchments:a review  

作　　者：YanLong Kong ZhongHe Pang 

机构地区：[1]Key Laboratory of Engineering Geomechanics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing,100029, China [2]Graduate School of Chinese Academy of Sciences, Beijing 100029, China

出　　处：《Research in Cold and Arid Regions》2011年第1期86-91,共6页寒旱区科学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grants 40672171);the Innovation Chinese Academy of Sciences (GrantProgram of kzcx2-yw-127)

摘　　要：Isotope hydrograph separation （IHS） is a basic tool in applied hydrology. Its application has expanded to surface water and groundwater interaction, and eco-hydrological processes from runoff generation processes. This paper reviews the progress made in IHS for alpine catchments, with emphasis on its significance in reflecting the impact of global change on water resources. Also, the principle of IHS and its uncertainties are explained in detail. The mechanism of variation of stable isotopes in snow-melt water is discussed, and then methods are presented to improve the separation during snow-melt such as volume weighted average method （VWA）, current melt-water method （CMW） and runoff-corrected event water approach （RunCE）, with their advantages and disadvantages explained. New approaches may extend the applications of IllS, for example, large basin studies combined with GIS, and develop new theories of runoff generation combined with other pararneters such as deuterium excess and DOC.Isotope hydrograph separation （IHS） is a basic tool in applied hydrology. Its application has expanded to surface water and groundwater interaction, and eco-hydrological processes from runoff generation processes. This paper reviews the progress made in IHS for alpine catchments, with emphasis on its significance in reflecting the impact of global change on water resources. Also, the principle of IHS and its uncertainties are explained in detail. The mechanism of variation of stable isotopes in snow-melt water is discussed, and then methods are presented to improve the separation during snow-melt such as volume weighted average method （VWA）, current melt-water method （CMW） and runoff-corrected event water approach （RunCE）, with their advantages and disadvantages explained. New approaches may extend the applications of IllS, for example, large basin studies combined with GIS, and develop new theories of runoff generation combined with other pararneters such as deuterium excess and DOC.

关 键 词：ISOTOPE hydrograph separation alpine catchments snow-melt water UNCERTAINTY 

分 类 号：P597.2[天文地球—地球化学] TL922[天文地球—地质学]