Utilization of the Flood Simulation Model for Disaster Management of Local Government
Daisuke Kuribayashi*,†, Miho Ohara*, Takahiro Sayama**, Atsuhiko Konja***, and Hisaya Sawano*
*International Centre for Water Hazard and Risk Management, Public Works Research Institute
1-6, Minamihara, Tsukuba, Ibaraki 305-8516, Japan
**Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan
***Mitsui Consultants Co., LTD., Osaka, Japan
This paper proposes a method to evaluate the flood risk of each district in a municipality to assist disaster management personnel. The method is specifically for municipalities in a mountainous region where insufficient information is available for practical disaster management. Using this method, we conducted inundation analysis for multiple patterns of rainfall and discharge using a rainfall-runoff-inundation model, and estimated the maximum inundation depth and duration. Based on the estimation, we developed a “flood diagnostic chart” to evaluate district-level flood risk, additionally considering other indicators. Moreover, we located flood hotspots, which are areas requiring extra precautions because of the high flood risk for districts.
-  Ministry of Land, Infrastructure, Transport, and Tourism (MLIT), Website Disaster Prevention Information on Rivers (in Japanese).
-  Flood Protection Act, Revision at May 2015 (in Japanese).
-  Basic Act on Disaster Control Measures: Revision at September 2015 (in Japanese).
-  Cabinet office, “Guideline on manual of decision and communication of evacuation order,” Aug, 2015 (in Japanese).
-  Website of Aga Town, “Outline of Aga Town” (in Japanese).
-  Division of Welfare and Health, Niigata Prefectural Government, “Outline of aging people,” as of 1st October, 2015 (in Japanese).
-  Aga Town, “Record of July 2011 Flood Damage,” December 2012 (in Japanese).
-  Division of Construction, Niigata Prefectural Government, “Leaflet on Flood Countermeasures against 2011 Flood” (in Japanese).
-  T. Sayama, Y. Tatebe, S. Fujioka, T. Ushiyama, A. Yorozuya, and S. Tanaka, “Rainfall-runoff-inundation analysis for 2011 Thai Flood emergency response,” JSCE paper B1 (Hydraulics), Vol.69, No.1, pp. 14-29, 2013 (in Japanese).
-  Water and Disaster Management Bureau, MLIT, “Guideline on supposable hazard for expected inundation,” July 2015 (in Japanese).
-  Water and Disaster Management Bureau, MLIT, “Fundamental River Management Policy for Agano River,” November 22, 2007 (in Japanese).
-  Division of Construction, Niigata Prefectural Government, “Inundation area map No.1, 2” (in Japanese).
-  Geospatial Information Authority of Japan, “Basic Map Information” (in Japanese).
-  Water and Disaster Management Bureau, MLIT, “Guideline of Damage Analysis for Water-related Disasters (2013 Trial version),” July 2013 (in Japanese).
This article is published under a Creative Commons Attribution-NoDerivatives 4.0 Internationa License.