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発表 平成27年9月に茨城県常総市で発生した洪水氾濫の地理的特徴

作成年度 2015 年度
論文名 平成27年9月に茨城県常総市で発生した洪水氾濫の地理的特徴
論文名(和訳)
論文副題
発表会 第37回(2015年度)地域安全学会研究発表会(秋季)
誌名 地域安全学会第37回研究発表会(秋季)梗概集
巻・号・回 No.37
発表年月日 2015/11/13 ~ 2015/11/14
所属研究室/機関名 著者名(英名)
ICHARM南雲直子
ICHARM大原美保
ICHARM澤野久弥
常葉大学河本尋子
常葉大学田中聡
抄録
Ishige and Mitsukaido district of Joso city in Ibaraki prefecture was attacked by heavy flood due to overflow and dike break of Kinu River in September, 2015. Although relatively higher natural levees adjacent to overflow and dike break sites in Ishige district were inundated with the depth of 1.0 m or less, flood water was soon drained to reach floodplain and back marsh behind and expanded southward. Longer and deeper inundation of more than 1.5 m deep around Shinhakkenbori River in Mitsukaido district was caused because developed natural levees prevented to drain flood water smoothly downstream. As issued evacuation orders were not covering all the inundation area, verification of issuing process and evacuation activities of local residents are necessary.
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