2011 Fiscal Year Final Research Report
Rainfall-Runoff-Inundation Simulation Based on Global Hydrologic Model Nesting
| Project/Area Number |
22760379
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Hydraulic engineering
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| Research Institution | Public Works Research Institute |
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Principal Investigator |
SAYAMA Takahiro 独立行政法人土木研究所, リスクマネジメント国際センター, 研究員,連携准教授 (70402930)
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| Project Period (FY) |
2010 – 2011
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| Keywords | 洪水災害 / 水文モデル / 降雨流出 / 洪水氾濫 / チャオプラヤ川 / インダス川 |
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| Research Abstract |
This study developed a new model to predict river discharge and flood inundation simultaneously and simply for any river basin in the world. The model is named Rainfall-Runoff-Inundation(RRI) model, which has been applied to a various flooding in the world during this study period. Particularly, for the devastating 2011 Chao Phraya flooding in Thailand, an emergency response-type flood prediction conducted in mid-October 2011 indicated that the large-scale inundation in the lower part of the basin might remain even until the end of November. The post flood analysis with field investigations verified that the above prediction was more or less reasonable, and updating various input information including evapotranspiration showed significant improvement in terms of simulating more accurate river discharges and inundation depths.
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[Remarks] (3)報道:チャオプラヤ川流域の氾濫予測結果(NHKをはじめとする11のマスメディアで紹介)
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[Remarks] (4)佐山敬洋:世界の大規模洪水を監視・予測する先端技術,河川文化を語る会「アジア太平洋地域の災害を語る」,日本河川協会,愛媛大学南加記念ホール, 2012.3.9.
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[Remarks] (5)佐山敬洋:タイ・チャオプラヤ川流域における2011年大規模洪水の実態,セッション:激甚化する降雨災害にどう向き合うか,土木学会主催東日本大震災シンポジウム,東京大学, 2012.3.6.
