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題 名 | 烏溪流域洪水演算模式之建立=Establishment of Flood Routing Model for Wu-Shi Basin |
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作 者 | 陳昶憲; 楊朝仲; 洪碧芳; | 書刊名 | 逢甲學報 |
卷 期 | 29 1996.06[民85.06] |
頁 次 | 頁159-176 |
分類號 | 443.42 |
關鍵詞 | 限制性卡門濾波法; 馬斯金更洪水演算模式; Constrained kalman filter algorithm; Muskingum routing model; |
語 文 | 中文(Chinese) |
中文摘要 | 將傳統的卡門濾波推求馬斯金更洪水演算模式參數作一限制修正,即令模式參數 (C0、C1、C2)於每一時刻的模擬過程中均滿足C0+C1+C2=1之物理性假設,如此,不 僅在模擬過程中能有效的推求出參數,更能使模式滿足物理性的假設,此即為「限制性卡 門濾波法」。 將蒐集的烏溪流域實測資料,利用限制性卡門濾波法進行分析,再探討其上游入流 量,下游出流量及支流量的權重關係。最後發現本方法所推求的洪颱事件參數序率變化 圖,呈現相當平穩的狀態,且無起始段振盪的現象。本文並由檢定及驗證之評鑑結果,發 現加支流量的效果較不加支流量為佳,其原因乃是因加入支流量後使模式較符合質量守恆 的定義。 |
英文摘要 | We make a constrained correction for estimating parameters of traditional kalman filter algorithm. We hope the parameters (C0、 C1、 C2) can satisfy physical hypothesis (C0+C1+C2=1) in simulating process for every time step. The model can estimate parameters efficiently, and also satisfy the physical constrain. It's named 『 Constrained Kalman Filter Algorithm 』. The constrained kalman filter algorithm is used to analyze the data collected in Wu-Shi Basin. Then we discuss the distributed realationships among the inflow upstream, the outflow downstream and the tributary inflow. Finally, we find that the time variation of model parameters for the simulated river reach are stable and there is no shakiness in beginning section. According to the tests and identification conducted in this study, we discover that the simulated results with the tributaries included is better than that without the tributaries included, because it conforms the mass conservation law. |
本系統中英文摘要資訊取自各篇刊載內容。