Study on processes of flash flood toward extracting potential risk of flash flood in rivers

山洪爆发过程研究，提取河流山洪潜在风险

• 批准号: 23780162
• 负责人: MIYATA Shusuke
• 金额: $ 2.91万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23780162/
• 关键词: 鉄砲水; 降雨の空間分布; 山岳流域; 小規模河道閉塞; 土石流; 降雨の時空間分布; 降雨－流出モデル; 河道閉塞

To examine effects of factors associated with flash flood and processes of flash flood, hydrological observations and simulations were conducted in an alpine catchment. Observation and simulation results suggest that runoff response of the study catchment is quick even during prolonged rainfall event and both localized precipitation in a sub-catchment and quick runoff from high altitude areas with thinner soil layer contributed rapid increase of river water level during a short-duration intensive storm. The hydrological simulation was applied to catchments covered by volcanic ash and showed that area of overland flow in a catchment is possibly an index of debris flow occurrence.

为了研究山洪暴发的影响因素和过程，水文观测和模拟在高山流域进行。观测和模拟结果表明，研究集水区的径流响应是快速的，即使在长时间的降雨事件和局部降水的子集水区和快速径流从高海拔地区与较薄的土壤层贡献了快速增加的河流水位在短时间内强烈的暴雨。水文模拟应用于集水区覆盖的火山灰，并表明，在一个集水区的地表径流面积可能是泥石流发生的一个指标。

项目成果

Application of rainfall radar and runoff model to volcanic mountain watersheds

降雨雷达和径流模型在火山山流域的应用

• 发表时间: 2013
• 期刊: Proceedings of 4th International Seminar of HATHI
• 作者: Miyata;S.;Fujita;M.;Teratani;T.;Tsujimoto;H.;Osaka;T
• 通讯作者: T

Peak flow responses and recession flow characteristics after thinning of Japanese cypress forest in a headwater catchment

• DOI: 10.3178/hrl.6.35
• 发表时间: 2012
• 期刊: Hydrological Research Letters
• 影响因子: 1.1
• 作者: B. Dũng;T. Gomi;S. Miyata;R. Sidle

山地河川におけるフラッシュフラッドの特性に寄与する要因

山区河流山洪暴发特征的影响因素

• 发表时间: 2012
• 作者: 岩永史子;Acharya K,今田省吾,谷口武士,河村幸雄,田中浄,森信寛,山本福壽,山中典和;宮田秀介,小林弘尚,竹林洋史,里深好文,藤田正治,辻本浩史,竹下航
• 通讯作者: 宮田秀介,小林弘尚,竹林洋史,里深好文,藤田正治,辻本浩史,竹下航

Simulation of flash floods in steep watersheds covered by volcanic ash

火山灰覆盖的陡峭流域山洪模拟

• 发表时间: 2014
• 作者: Shusuke Miyata;Masaharu Fujita;Hirofumi Tsujimoto;Takuji Teratani
• 通讯作者: Takuji Teratani

Runoff responses to forest thinning at plot and catchment scales in a headwater catchment draining Japanese cypress forest

• DOI: 10.1016/j.jhydrol.2012.03.040
• 发表时间: 2012-06
• 期刊: Journal of Hydrology
• 影响因子: 6.4
• 作者: B. Dũng;T. Gomi;S. Miyata;R. Sidle;K. Kosugi;Y. Onda