Study on Synthesizing the Long and Short Terms Runoff Model

长短期径流模型综合研究

• 批准号: 61560268
• 负责人: NAGAI Akihiro
• 金额: $ 1.22万
• 依托单位: Okayama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1986
• 资助国家: 日本
• 起止时间: 1986 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-61560268/
• 关键词: Long-term runoff; Flood runoff; 長期流出; 洪水流量予測; 流出モデル; 自然低減曲線; 最適化手法

The long short terms runoff model for analyzing both flood and long-term renoff successively is applied to five mountainous watersheds: Eigenji Dam basin of 132km^2, Yubara Dam basin of 255km^2, Yunogo basin of 490km^2, Hisaki basin of 979km^2, and Iwato basin of 1,717km^2.The model has 14 unknown parameters. These parameters are identified for two or three years of data using mathematical optimization technique. the results of simulation agree well with observations of flood and long-term runoff not only for the identification period but also for the residual period of verification.Lag time for simulation of flood runoff is introduced on the basis of theoretical discussion about characteristics of peak runoff in the model. The lag time is suggested to depend upon watershed area and peak discharge for a given flood.A simple technique for real-time prediction of flood runoff is proposed. The technique is shown to be effective for practical purpose.

连续分析洪水和长期径流的长短期径流模型应用于5个山区流域：永根寺坝流域132 km^2、汤原坝流域255 km^2、汤吾子流域490 km^2、久崎流域979 km^2和岩户流域1，717 km^2。模型有14个未知参数。这些参数是用数学最优化技术对两三年的数据确定的。在对模型中洪峰径流特性进行理论探讨的基础上，引入了洪水径流模拟的滞后时间。提出了一种基于流域面积和洪峰流量的洪水径流实时预报方法。该技术被证明是有效的实用目的。

项目成果

Kadoya, Mutsumi: "Development of the Long and Short Terms Runoff Model" Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering. 136. 31-38 (1988)

Kadoya，Mutsumi：“长期和短期径流模型的开发”日本灌溉、排水和填海工程学会会刊。

角屋睦: 農業土木学会論文集. 137. 71-78 (1988)

Mutsumi Kadoya：日本农业和土木工程师学会会议记录 137. 71-78 (1988)。

Kadoya, Mutsumi: "Applicability of the Long and Short Terms Runoff Model in the Eigenji dam Basin" Transactions of the Japanese Society of Irrigation, Drainage and Reclamation Engineering. 137. 71-78 (1988)

Kadoya，Mutsumi：“Eigenji 坝盆地长期和短期径流模型的适用性”日本灌溉、排水和填海工程学会学报。

角屋睦: 農業土木学会論文集. 136. 31-38 (1988)

Mutsumi Kadoya：日本农业和土木工程师学会会议记录 136. 31-38 (1988)。