CONSIRUCTION OF COMPREHENSIVE DISTRIBUTED RAINFALL-RUNOFF MODEL ITS APPLICATION FOR NEW DEVELOPMRNT OF FLOOD CONTROL PLANNING BASED ON ASSESSMENT OF FLOOD SAFETY-LEVEL

基于防洪安全水平评估的分布式雨径流综合模型构建及其在防洪规划新发展中的应用

• 批准号: 16560445
• 负责人: TACHIKAWA Yasuto
• 金额: $ 2.11万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16560445/
• 关键词: Distributed rainfall-runoff model; The Yodo River; Flood control planning; Dam reservoir; Runoff prediction; River planning; Design flood; Design rainfall; 降雨分布; 洪水予測; Distributed rainfall-runoff model; The Yodo River; Flood control planning; Dam reservoir; Runoff prediction; River planning; Design flood; Design rainfall; 降雨分布; 洪水予測

In this researth, a comprehensive distributed rainfall-runoff model that includes the dam reservoir operation rule was developed, and applied to the Yodo River basin (7,281km^2) to assess the flood safety levels in the catchment The research aims to develop a new scheme of a flood control planning based on assessment of flood safety-level to cooperate with the interests of various stake-holders. The research was conducted from 2004 to 2005. and the followings are achieved in each year.In 2004, a comprehensive distributed rainfall-runoff prediction system was developed and applied to the Yodo River basin (7,281km^2). The prediction system is based on physically based distributed rainfall model with the topographic representation of 250m DEM, which includes the operations of eight dam reservoir systems and the effect of water storage at the lake Biwa in the catchment. By the use of the system, it was realized to assess the flood safety-level at any locations in the catchment giving desig … More n rainfalls with various return retum periods of precipitation. Also, the historical change of flood safety-levels at the Hirakata, the outlet of the prediction system, with the construction of dam reservoirs after 1960 was analyzed using the prediction system.In 2005, flood safety-levels at several representative points in the catchment were analyzed by simulating flood discharges for ten types of design rainfall with the magnitudes of 30,50,100,150 and 200 return periods. The analysis successfully showed the current status of flood safety-levels in the various points of catchments with some extents of prediction uncertainty. The system was extended not only to simulate short term flood discharge, but also to predict long term prediction of discharge, dam release and water stage at the dam reservoirs by including an evapotranspiration sub-systemThe system is a basic analysis tool to predict river discharge considering dam reservoirs operation. This system will be utilized to create and maintain safety and secure society. The further studies with the prediction system include :・Development of a new scheme of dam reservoir operation to cope with heavy floods that outstretch the planning magnitude,・Assessment of the safety and reliability of current dam reservoirs and its operation under global warming,・Development of a real-time flood prediction system for the entire river system to issue flood waning for medium and small scale catchments, and・To propose a comprehensive river management strategy that satisfies safety in flood, water resources and environments. Less

在这项研究中，开发了一个全面的分布式降雨运行模型，该模型已开发出来，并应用于Yodo河盆地（7,281公里^2），以评估流域中的洪水安全水平。研究旨在制定基于洪水控制计划的新方案，基于洪水安全级别的洪水安全计划，以评估洪水安全级别，以评估各种企业家的利益。这项研究是从2004年到2005年进行的。每年都实现了以下研究。2004年，开发了一个全面的分布式降雨奔跑预测系统，并应用于Yodo River Basin（7,281km^2）。预测系统基于基于物理的分布降雨模型，地形表示为250m，其中包括八个水坝水库系统的操作以及集水区比瓦湖的储水效果。通过使用该系统，可以意识到在流域中的任何位置评估洪水安全级别，使Desig…更多的降雨量，具有各种精确返回期。此外，使用预测系统分析了洪水安全水平的历史变化，预测系统的出口是预测系统的出口，使用预测系统分析了大坝储量。在2005年，通过模拟了10型设计降水的洪水量通过30,50,150,150,150,150,150,150,150,1000,150和2005年，通过模拟了洪水排放的洪水量来分析集水集中几个代表点的洪水安全级别。该分析成功地表明了洪水安全级别在各个集水点中的现状，并具有一定的预测不确定性。该系统的扩展不仅是为了模拟短期洪水排放，还可以通过包括蒸发子系统来预测大坝水库的排放，大坝释放和水位阶段的长期预测，该系统是预测河流排放的基本分析工具，以预测河流排放，考虑大坝储量的操作。该系统将用于创建和维持安全和安全的社会。对预测系统的进一步研究包括：・开发了一种新的大坝计划，以应对限制计划幅度的重型地板，评估当前大坝保留的安全性和可靠性及其在全球变暖下的运营，・开发了实时洪水预测系统，以使整个河流系统为洪水泛滥的环境提供灾难的范围，以使河流的管理局限于洪水范围，以供应泛滥，并培养了一项策略，并促进了一项策略，并努力地进行策略，并努力地进行了效果。较少的