スーパーコンピュータ「京」を用いた防災・減災研究

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Studies for Prevention and Mitigation of Natural Disasters Using the K computer 上原均 安藤和人 あらまし HPCI 3 3 Abstract Japan has often been hit by serious natural disasters. To prevent and mitigate disasters, it is imperative to take effective measures quickly. JAMSTEC has embarked on Strategic Programs for Innovative Research: Advanced Prediction Researches for Natural Disaster Prevention and Reduction (Field 3), in collaboration with universities and research bodies in Japan. In Field 3, large-scale natural disaster simulations on the K computer have been conducted. We have already obtained good results such as acquiring an ability to make highly precise forecasts of Madden Julian oscillations, obtaining high-precision tornado simulation results, carrying out advanced simulations on seismic motion, conducting high-resolution tsunami simulations related to a Nankai Trough quake, carrying out high-resolution seismic response analysis, and conducting multi-agent simulations for evacuation actions. 2 FUJITSU. 65, 1, p. 2-7 01, 2014

まえがき 2011 3 11 9.0 2 HPCI 3 1 2 3 3 防災 減災に資する気象 気候 環境予測研究 地球規模の気候 環境変動予測に関する研究 km km MJO 3 図 -1 0 NICAM 40 0 90E 180 90W 0 0 90E 180 90W 0 い い NICAM MJO い 研究 -1 FUJITSU. 65, 1 01, 2014 3

NICAM Nonhydrostatic Icosahedral Atmospheric Model 4 MJO 14 km 7 km 10 MJO MJO 3 MJO European Center for Medium-range Weather Forecast ECMWF Integrated Forecast System NICAM MJO 5 6 ECMWF Integrated Forecast System 超高精度メソスケール気象予測の実証 1 2 3 LETKF 図 -2 2012 5 6 LETKF 24 5 6 た F1 21 km 600 m F1 F2 32 km 650 m 0.1 1/s を い た F3 17 km 500 m a b 研究 -2 2012 5 6 4 FUJITSU. 65, 1 01, 2014

7 350 m 12 10 0.1 sec 1 地震 津波の予測精度の高度化に関する研究 3 地震の予測精度の高度化に関する研究 SEISM3D 8 9 82 944 CPU 19.1 2.1 PFLOPS 50 TFLOPS 40 津波の予測精度の高度化に関する研究 United Research Services Geoscience Australia 10 11 IF SIMD 3 3 2 8748 7.49 5 m 図 -3 140 km 100 km 3 6.8 Courant- Friedrichs-Lewy CFL 0.015 8748 2013 11 5 1 5 m 上 2 m を 研究 -3 FUJITSU. 65, 1 01, 2014 5

ー ン 40 m い た a 3 b 17.6 ン ン -4 31 30 京 M. L. L. Wijerathne -5 都市全域の地震等自然災害シミュレーションに関する研究 1 E-Simulator/ ADVENTURECluster 7400 31 512 E-Simulator/ADVENTURECluster 図 -4 2 MAS MAS 図 -5 MAS CPU 64 10 CPU 200 2048 CPU 12 むすび HPCI 3 3 参考文献 1 6 FUJITSU. 65, 1 01, 2014

HPCI http://www.mext.go.jp/a_menu/kaihatu/jouhou/hpci/ 1307375.htm 2 JAMSTEC HPCI 3 http://www.jamstec.go.jp/hpci-sp/ 3 R. Madden et al. Detection of a 40-50 Day Oscillation in the Zonal Wind in the Tropical Pacific J. Atmos. Sci. Vol.28 Issue 5 p.702-708 1971 4 H. Miura et al. A Madden-Julian Oscillation Event Realistically Simulated by a Global Cloud-Resolving Model Science Vol.318 No.5857 p.1763-1765 2007 5 H. Lin et al. Forecast Skill of the Madden-Julian Oscillation in Two Canadian Atmospheric Models Mon. Wea. Rev. Vol.136 Issue 11 p.4130-4149 2008 6 J. Gottschalck et al. A Framework for Assessing Operational Madden-Julian Oscillation Forecasts A CLIVAR MJO Working Group Project Bull. Amer. Meteor. Soc. Vol.91 Issue 9 p.1247-1258 2010 7 H. Seko et al. Data Assimilation Experiments of Tornado occurring on 6th May 2012 CAS/JSC WGNE Res. Activ. Atmos. Ocea. Modell. 43 01.13-01.14 2013 8 T. Furumura et al. Parallel simulation of strong ground motions during recent and historical damaginge earthquakes in Tokyo Japan Parallel Computing Vol.31 Issue 2 p.149-165 2005 9 T. Maeda et al. FDM Simulation of Seismic Waves Ocean Acoustic Waves and Tsunamis Based on Tsunami-Coupled Equations of Motion Pure Appl. Geophys. 170 1-2 109-127 DOI 10.1007/s00024-011-0430-z 2013 10 J. D. Jakeman et al. Towards spatially distributed quantitative assessment of tsunami inundation models Ocean Dynamics Vol.60 Issue 5 p.1115-1138 2010 DOI 10.1007/s10236-010-0312-4 2010 11 T. Baba et al. Tsunami inundation modeling of the 2011 Tohoku earthquake using three-dimensional building data for Sendai Miyagi Prefecture Japan in V. S.-Fandiño et al. ed. Tsunami Events and Lessons Learned Environmental and Societal Significance Springer accepted. 2013 12 M. L. L. Wijerathne et al. Parallel Scalability Enhancements of Seismic Response and Evacuation Simulations of IES VECPAR 2012 10th International Meeting High Performance Computing for Computational Science 2012 著者紹介 上原均 ( うえはらひとし ) HPCI 3 安藤和人 ( あんどうかずと ) HPCI 3 FUJITSU. 65, 1 01, 2014 7

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