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題 名 | 狀態空間降雨--逕流模式之研究及其應用=A Study on the State Space Rainfall-runoff Model and Its Application |
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作 者 | 王如意; 潘宗毅; | 書刊名 | 農業工程學報 |
卷 期 | 47:2 2001.06[民90.06] |
頁 次 | 頁1-16 |
分類號 | 443.1 |
關鍵詞 | 水文模式; 狀態空間; 最佳化理論; Hydrological model; State space; Optimal algorithm; |
語 文 | 中文(Chinese) |
中文摘要 | 模擬水文循環系統中之降雨﹣逕流歷程為一相當困難之工作。為考量精簡演算過程及增進模式之適用性,本研究應用狀態空間理論以研析水文模式之轉換系統,並採用間接系統檢定方法,對水文歷程作深入之探討。 研究中利用研究流域歷年來颱洪事件之記錄降雨與逕流資料,分析定率性降雨﹣逕流模式之機制。有關狀態空間檢定程序可分為如下兩步驟:第一為依據最佳化理論完成限制反褶合積分計算,以求得系統之單位歷線;第二為利用第一步驟之結果,進一步估算狀態空間方程式與觀測方程式之參數矩陣,以確知系統之轉換過程。本研究以基隆河流域五堵集水區為研究範圍,模擬其降雨﹣逕流歷程並獲得頗佳之結果,可提供水文規劃之參考。 |
英文摘要 | Modeling the rainfall-runoff process is always a difficult task in the simulation of whole hydrological cycle. For the purpose of simplifying calculation and enhancing the adaptability, state space theory is adopted to explore the transformation system of a hydrological model. The hydrological process is analyzed by using the identified method of indirect system. The structure of state space model is identified with rainfall-runoff records in this study. The procedure of calibrating the state space model is illustrated as follows: firstly, unit hydrograph is derived from the constrained deconvolution step based on the optimal algorithm, and secondly parameter matrices of the state equation and the observation equation are further identified with the unit hydrograph resulted from the first step. The above procedure can explain readily the transformed process of a hydrological system. Wu-du Watershed located at the middle stream of Keelung River is chosen as a study area. Satisfactory results are obtained to provide a good approach for hydrological planning in the project area. |
本系統中英文摘要資訊取自各篇刊載內容。