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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 3 - WATER ENGINEERING AND CIVILIZATION : From Unit Hydrograph to Instantaneous Unit Hydrograph: W.-L. Huang?s Contribution to Watershed Hydro...
From Unit Hydrograph to Instantaneous Unit Hydrograph: W.-L. Huang?s Contribution to Watershed Hydrology
Author : Clark C.K. Liu
The instantaneous unit hydrograph (IUH) model is one of the most popular analytical tools in applied hydrology. The IUH model treats a watershed as a linear system ? the effective rainfall is the system input function, the storm hydrograph is the system output function, and the IUH is the system unit impulse response function. The evolution of the modern IUH model from the original Shearman unit hydrograph method took several decades to accomplish with efforts of many brilliant water scientists, including the late Professor W.-L. Huang of Tsinghua University. Huang completed his Ph.D. dissertation research entitled ?an analysis of the rainfall-runoff correlation?, at the University of Illinois in 1937, shortly after the unit hydrograph method was proposed by Shearman in 1932. In the dissertation, Huang introduced the concept of instantaneous hydrograph which significantly improves Shearman unit hydrograph method and includes most of the essential elements of the modern IUH model. Unfortunately, Huang?s contribution was not duly recognized by applied hydrology literatures. This paper elaborates upon Huang?s contribution to watershed hydrology on the basis of the general theory of system modeling.
File Size : 254,450 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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