1 2してTomohiro TANAKA, Yasuto TACHIKAWA and Kazuaki YOROZU 1 2
C1)して( ) C1) An impact assessment of a risk of water-related disaster under a changing climate has been highly concerned recently.  For the assessment, it is important to examine a change of the magnitude of inundation disasters as well as that of flow regime under various climate conditions.  To make an ensemble assessment of the magnitude of inundation disaster, systematic and computational cost-effective simulation is required. In this research, a flood-inundation model which nests a distributed rainfall-runoff model and is applicable to any part of a basin was developed.  The developed model was successfully applied to the Shirakawa River catchment in Kyushu, Japan. Key Words: inundation simulation, distributed rainfall-runoff model, nesting, climate change 1. 8) 2 1) 2) 3) 4) 1km
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), pp. 451-456, 2010. , B1( 3) Yadu Pokhrel, Naota Hanasaki, Sujan Koirala, Shin- jiro Kanae and Taikan Oki:  Climate change impact on river flow of the Tone River Basin, Japan, Journal of Japan Society of Civil Engineering, Ser. B1(Hydraulic Engineering), Vol.54, No.1, pp. I 97-I 102, 2010. 4)  Yukiko Hirabayashi, Roobavannan Mahendran, Sujan Koirala, Lisako Konoshima, Dai Yamazaki, Satoshi Watanabe, Hyungjun Kim and Shinjiro Kanae: Global flood risk under climate change, Nature Cli- mate Change, doi:10.1038/nclimate1911, pp. 816-821, 2013. 5) 6) 46
54 pp. 919-924   2010 7) : 2011 2012. , No.400/II-22, pp. 1-15, 8) , B1( ), Vol. 52, pp. 433-438, 2008. 9) 1K-FRM/DHM, http://hywr.kuc : iv.kyoto-u.ac.jp/products/1K-DHM/1K-DHM.html (2013/9/30 .) HydroSHEDS, http://hydrosheds.cr.usgs.g 10) USGS: ov/datasets.php(2013/9/30 .) 11) : , , , , 48, pp.7–12, , 2004. 12) Paul D. Bates, Matthew S. Horritt, Timothy J. Fewtrell: A simple inertial formulation of the shal- low water equations for efficient two-dimentional flood inundation modeling, Journal of Hydrology, Vol.387, pp. 33-45, 2010. 13) Gustavo A. M. deAlmeida, Paul D. Bates, Jim E. Freer, and Maxime Souvignet: Improving the sta- bility of a simple formulation of the shallow water equations for 2-D flood modeling, Water Resources Research, Vol.48, W05528, 2012. 14) , No.740/II-64, pp. 1-17, 2003. 15) Neil M. Hunter, Matthew S. Horritt, Paul D. Bates, Matthew D. Wilson, Micha G.F. Werner: An adap- tive time step solution for raster-based storage cell modelling of floodplain inundation, Advances in Wa- ter Resources, Vol.28, pp. 975-991, 2005. 16) 24 7 : [ ], pp. 1-2, 2013. 7 17) 24 : 3.4, pp. 16-18, 2013. 18) Duan, Q., Sorooshian, S. and Gupta, V.K.: Optimal use of the SCE-UA global optimization method for calibrating watershed models, Journal of Hydrologym Vol. 158, pp. 265-284, 1994. 8)
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