Construction and Application of The Humane-based Instantaneous Unit Hydrograph
Date Issued
2005
Date
2005
Author(s)
Tsou, Yu-ta
DOI
zh-TW
Abstract
The average annual rainfall in Taiwan is 2,500 mm. Rainfall is temporally and spatially non-uniform. In the recent 30 years, typhoon-related damages have exacerbated due to development of urbanization, population concentration, and the change of land use. The calamity that a lot of storms cause is more serious than in the past.
Previous studies have explored the geographic factor or hydrologic parameter mainly related to hydrologic models. However, no previous research has been undertaken into the influence that the humane factor. The results cause environmental changes by urbanization can sum up with the increase of impermeable area and improve the density of population. This research uses the Analytic Hierarchy Process to consider the humane factor in the hydrologic models. The analytical results achieved in this study can be applied for urban watershed management in Taiwan.
The model is calibrated and validated by the rainfall-runoff records of selected typhoon events occurred at the upstream watershed of Wu-tu, Keelung River Basin. The results suggest the effect of urbanization will advance the time of concentration and grow in quantity of flood peak indeed. Flow peak is underestimated by using parameters calibrated from earlier stages of urbanization. It implies degree of urbanization will effect basin’s runoff remarkably.
Subjects
長短程通用水筒模式
分析階層程序法
Humane Factor
Long and Short Terms Tank Model
Analytic HierarchyProcess
The Humane-based Instantaneous Unit Hydrograph
Type
thesis
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