Comparision and Application of Inundation Models for Watersheds

碩士 === 國立臺灣大學 === 農業工程學系 === 82 === The most difficult part of an itegral flood warningystem is to save the computational time in order to providearnings in time to permit protection of properties and lives.he purpose of this study is to develop an effici...

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Bibliographic Details
Main Authors: Lin,Shu-Horng, 林洙宏
Other Authors: Hsu,Ming-hsi
Format: Others
Language:zh-TW
Published: 1994
Online Access:http://ndltd.ncl.edu.tw/handle/77956071913818836171
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Summary:碩士 === 國立臺灣大學 === 農業工程學系 === 82 === The most difficult part of an itegral flood warningystem is to save the computational time in order to providearnings in time to permit protection of properties and lives.he purpose of this study is to develop an efficient anddequate inundation forecasting model based upon the storageell concept to replace the complicated two-dimensional finiteifference method used earlier. The parameters needed in the cell concept model arealibrated by the results of the two-dimensional finiteifference model. These models are applied to three areas, amely,ideal square area ,Gia-Yi area ,and Nei-Ten basin. The comparison between the simulation results of thewo-dimensional finite difference model and the cell inundationodel indicates that the results are fairly reasonable. Theell inundation model is more efficient for flood forecastingystem in considering the computational time. In order to ensure the quality of input data which is verymportant in maintaining the accuracy of ground elevations inhe simulation ,the digital terrain model (DTM) and geographicnformation system (GIS) are employed to treat the input data.