DOI: 10.1002/2014GL062577
论文题名: Near-field tsunami inundation forecast using the parallel TUNAMI-N2 model: Application to the 2011 Tohoku-Oki earthquake combined with source inversions
作者: Oishi Y. ; Imamura F. ; Sugawara D.
刊名: Geophysical Research Letters
ISSN: 0094-8961
EISSN: 1944-8692
出版年: 2015
卷: 42, 期: 4 起始页码: 1083
结束页码: 1091
语种: 英语
英文关键词: 2011 Tohoku-Oki earthquake
; high-performance computing
; real-time prediction
; tsunami early warning
; tsunami simulation
Scopus关键词: Alarm systems
; Digital arithmetic
; Earthquakes
; Floods
; Forecasting
; Real time systems
; 2011 Tohoku-Oki earthquakes
; Early warning
; High performance computing
; Real-time prediction
; Tsunami simulation
; Tsunamis
; algorithm
; early warning system
; forecasting method
; hazard assessment
; hindcasting
; model validation
; parallel computing
; real time
; source parameters
; spatiotemporal analysis
; Tohoku earthquake 2011
; tsunami
; Honshu
; Japan
; Miyagi
; Sendai
; Tohoku
英文摘要: To contribute to tsunami early warning systems, we investigated the currently achievable speed of tsunami inundation simulations on a parallel computer as well as the benefits of high-resolution and faster than real-time inundation predictions. We found that a 5m resolution inundation simulation can be 75 times faster than real time, requiring only 1.5min to overview the inundation situation in Sendai City for the 2011 Tohoku tsunami. We developed a novel parallel tsunami model based on the well-known TUNAMI-N2 model and achieved 9.17 tera Floating-point Operations Per Second (FLOPS) on 9469 CPU cores. The present model can accurately hindcast the observed inundated regions of the 2011 Tohoku tsunami using tsunami source estimations of the tFISH and tFISH/RAPiD algorithms, which can be instantly derived from real-time observation data. The present high-resolution predictions can provide clear images of imminent hazards/disasters and can provide guidance for appropriate evacuation actions. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924863947&doi=10.1002%2f2014GL062577&partnerID=40&md5=d440646a0d616d6f1c0c6785208c527e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8577
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Fujitsu Laboratories Ltd., Kawasaki, Japan
Recommended Citation:
Oishi Y.,Imamura F.,Sugawara D.. Near-field tsunami inundation forecast using the parallel TUNAMI-N2 model: Application to the 2011 Tohoku-Oki earthquake combined with source inversions[J]. Geophysical Research Letters,2015-01-01,42(4).