Risk Assessment of Storm Surge and River Flooding in Cities in the Bay Areas

湾区城市风暴潮和河流洪水风险评估

• 批准号: 05680368
• 负责人: NAKAGAWA Hajime
• 金额: $ 1.28万
• 依托单位: KYOTO 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: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05680368/
• 关键词: Storm Surge; Flooding; Flooding of Storm Surges; River Flooding; Sea-level Rising; Cities in Bay Area; Typhoon; 流木; 地下街; 津波

In urban conglomerate cities extensively developed in bay area, flood-related hazard zoning, evaluation of losses due to storm surge and river flood, and evaluation of the effficacy of various structural and nonstructural measures are essential in planning strategy for hazares. This study mainly aims to present the method to predict the hazardous area due to storm surges and river floodings. Presented method, by which the occurrence of storm surges and the results of the flooding of protected low-lying areas are estimated, has been shown to be very useful for the assessment of countermeasures taken against storm surges. Zones at risk of storm surge flooding after the 21st century rise in sea level caused by the greenhouse effects could be predicted by this simulation model. A rise in sea level of 65cm would cause severe inundation in Osaka Bay Area about two and half times that flooded in a designed typhoon before the rise in sea level. If the predicted rise in sea level is valid, new countermeasures will have to be taken against storm surges in Osaka Bay area. Our simulation model and the results calculated from it can be used as the basis for the design of such countermeasures.

在湾区广泛发展的城市群中，洪水灾害区划、风暴潮和河流洪水损失评估以及各种结构性和非结构性措施的有效性评估是灾害规划策略的关键。本研究的主要目的是提出预测风暴潮和河流洪水造成的危险区域的方法。所提出的方法，通过估计风暴潮的发生和受保护的低洼地区的洪水结果，已被证明对于评估针对风暴潮采取的对策非常有用。该模拟模型可以预测 21 世纪温室效应导致海平面上升后面临风暴潮洪水风险的地区。海平面上升65厘米将导致大阪湾地区严重洪水泛滥，约为海平面上升前设计的台风洪水的两倍半。如果海平面上升的预测成立，大阪湾地区将不得不采取新的风暴潮对策。我们的仿真模型及其计算结果可以作为此类对策设计的基础。

项目成果

Zahurul Islam Md.: "Experimental Study on Sedimentation over the Floodplain due to River Embankment Faulure" Bull.Disas.Prev.Res.Inst., Kyoto Univ.Vol.44. 69-92 (1994)

Zahurul Islam Md.：“河堤溃决导致漫滩沉积的实验研究”Bull.Disas.Prev.Res.Inst.，京都大学第 44 卷。

中川一・井上和也・池口正晃・坪野考樹: "流木群の流動と堰止めに関する研究" 水工学論文集. 38. (1994)

Hajime Nakakawa、Kazuya Inoue、Masaaki Ikeguchi 和 Takaki Tsubono：“浮木群的流动和筑坝研究”水利工程学报 38。（1994 年）。

細田尚・多田彰秀: "鉛直加速度を考慮した基礎式系による開水路流れ定在波の水面形解析" 水工学論文集. 38巻. 457-462 (1994)

Hisashi Hosoda 和 Akihide Tada：“使用考虑垂直加速度的基本方程系统分析明渠中驻波的水面形状”，《水利工程学报》，第 38 卷，457-462（1994 年）。

Inoue,K.,Nakagawa,H.and Shimamoto,K.: "Numerical Simulation of Flooding in Cities in the Osaka Bay Area due to Storm Surges" Proc. of 3rd ROC-JAPAN Joint Seminar on Natural Hazayd Mitigation. 105-116 (1993)

Inoue,K.、Nakakawa,H. 和 Shimamoto,K.：“风暴潮造成的大阪湾地区城市洪水的数值模拟”Proc。

細田尚: "鉛直加速度を考慮した基礎式系による開水路流れ定在波の水面形解析" 水工学論文集. 38. 457-462 (1994)

Hisashi Hosoda：“使用考虑垂直加速度的基本方程系统分析明渠水流驻波的水面形状”水利工程学杂志 38. 457-462 (1994)。