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題名 | 都市化因子於歷線參數改變之效應=Effects of Urbanization Factors on Changes of Hydrograph Parameters |
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作者姓名(中文) | 鄭士仁; 周建明; 潘宗毅; 李如晃; | 書刊名 | 臺灣水利 |
卷期 | 58:1=229 2010.03[民99.03] |
頁次 | 頁89-101 |
分類號 | 443.42 |
關鍵詞 | 區塊克利金; 歷線參數; 都市化因子; 降雨-逕流模擬; 洪水歷線; Block Kriging; Hydrograph parameter; Urbanization factor; Rainfall-runoff modeling; Flood hydrograph; |
語文 | 中文(Chinese) |
中文摘要 | 本研究主要目的在於研析都市化因子之效應於歷線參數反應之改變。研究中,應用降雨-逕流模擬評估受都市化開發影響之集水區。降雨-逕流模擬所採用之暴雨事件為發生於1966年至2002年之51場實例,其中,使用40場事件予以檢定因都市化因子改變而改變之簡單集塊模式參數,並建立兩者之合適關係。於降雨-逕流模擬過程中,應用區塊克利金法估計流域平均雨量,而其所對應之平均超滲降雨則以非線性規劃方法計算之。剩餘之11場事件則用以評估所建立之都市化因子與歷線參數關係之適用性。由檢定與驗證結果可顯示本研究所使用之整合方法能有效率地解釋複雜都市化改變歷程所對應之水文與地文條件。研究結果亦說明參數n 對不透水面積與人口密度之反應比參數k 更為敏感,而參數n 與不透水表面之關聯性比人口密度為高。因此,本研究結果證實於探討都市化歷程中,兩個都市化因子 (不透水表面與人口密度) 於水文模式參數之效應,以不透水表面為最明顯,其可進一步應用於因都市化改變而改變之洪水歷線特性。 |
英文摘要 | This study mainly explores effects of urbanized factors on changes of hydrograph parameters. Urbanization impacts of the developing watershed are evaluated based on rainfall-runoff simulations. A total of 51 rainfall-runoff events occurred from 1966 to 2002, forty of these were calibrated, and effects of urbanization factors on runoff hydrographs resulting from a simple hydrological model were assessed. The block Kriging method was used to estimate the mean rainfall of the Wu-Tu watershed, and its hourly excesses were calculated by using the non-linear programming method. The remaining eleven cases were used to test the established relationships. The calibration and verification results confirm that the integral methods used in this study effectively illustrate the hydrological and geomorphic conditions in complex urbanized processes. Parameter n responds more sensitive than parameter k to increasing impervious area and population density. Additionally, parameter n responds more strongly to imperviousness than to population. Therefore, this study indicates that an impervious area is the main consequence of on ongoing urbanization in the Wu-Tu watershed. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。