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Gu Weizu. On the Hydrograph Separation Traced by Environmental Isotopes[J]. Advances in Water Science, 1996, 7(2): 105-111.
Citation: Gu Weizu. On the Hydrograph Separation Traced by Environmental Isotopes[J]. Advances in Water Science, 1996, 7(2): 105-111.

On the Hydrograph Separation Traced by Environmental Isotopes

  • Received Date: 1994-05-10
  • Rev Recd Date: 1995-07-07
  • Publish Date: 1996-04-25
  • Empirical graphic separation methods with large uncertainties are routinely used for decades to obtain input data,e.g.,the unit hydrograph etc,for various hydrologic models of rainfall-runoff.During 1970's another tracer-based hydrograph separation which attempts to be more physically-based than the above method mostly involves a two-component mixing model for stream flow which relies on the simple mass balance equations of water and isotope is widely used abroad.Eight fundamental assumptions involved in this method and its reality are tested within experimental and representative basins since 1987.From thin work,it is concluded that due to the isotopic situation is much more complex than these assumptions envisioned,most of them seems to be unrealistic notions,it follows that the conclusions of most previous studies based on this kind of two-component mixing model e.g.,a much higher propotion of storm runoff is contributed by groundwater,should be reconsidered.It is also concluded from this work that our reyuisities towards appropriate hydrograph separation into two or more than two components natural basins should be considered.
  • [1] RK林斯雷等.工程水文学.刘光文等译.北京:水利电力出版社,1981.232-234
    [2] 长江流域规划办公室主编.水文预报方法.北京:水利电力出版社,1979.78,80.87
    [3] 顾慰祖.集水区降雨径流响应的环境同位素实验研究.水科学进展.1992,3(4):246-248
    [4] Gu Weizu,Longinelli A.A case study on the hydrological significance of stable isotope data on alpine catchments with snow cover and glaciers,Xinjiang,China.Snow and Glacier Hydrology.IAHS Publication,1993.371
    [5] Sklash M G,Farvolden R N.The use of environmental isotopes in the study of high-runoff episodes in streams.Isotope studies of Hydrologic Processes,1982.65-73
    [6] 赵人俊.流域水文模拟.北京:水利电力出版社,1984.11
    [7] Gu Weizu.Challenge on some rainfall-runoff conceptions traced by environmental isotopes in experimental catchments.Tracer Hydrology,Germany,1992.400-402
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On the Hydrograph Separation Traced by Environmental Isotopes

Abstract: Empirical graphic separation methods with large uncertainties are routinely used for decades to obtain input data,e.g.,the unit hydrograph etc,for various hydrologic models of rainfall-runoff.During 1970's another tracer-based hydrograph separation which attempts to be more physically-based than the above method mostly involves a two-component mixing model for stream flow which relies on the simple mass balance equations of water and isotope is widely used abroad.Eight fundamental assumptions involved in this method and its reality are tested within experimental and representative basins since 1987.From thin work,it is concluded that due to the isotopic situation is much more complex than these assumptions envisioned,most of them seems to be unrealistic notions,it follows that the conclusions of most previous studies based on this kind of two-component mixing model e.g.,a much higher propotion of storm runoff is contributed by groundwater,should be reconsidered.It is also concluded from this work that our reyuisities towards appropriate hydrograph separation into two or more than two components natural basins should be considered.

Gu Weizu. On the Hydrograph Separation Traced by Environmental Isotopes[J]. Advances in Water Science, 1996, 7(2): 105-111.
Citation: Gu Weizu. On the Hydrograph Separation Traced by Environmental Isotopes[J]. Advances in Water Science, 1996, 7(2): 105-111.
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