globalchange  > 气候变化与战略
DOI: 10.1007/s11069-020-04168-5
论文题名:
Implication of source models on tsunami wave simulations for 2004 (Mw 9.2) Sumatra earthquake
作者: Dhanya J.; Raghukanth S.T.G.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 104, 期:1
起始页码: 279
结束页码: 304
语种: 英语
中文关键词: 2004 Sumatra earthquake ; Rupture process ; Tsunami wave heights ; Uncertainty
英文关键词: computer simulation ; earthquake rupture ; seismic source ; Sumatra earthquake 2004 ; tsunami ; uncertainty analysis ; wave height ; Greater Sunda Islands ; Sumatra ; Sunda Isles
英文摘要: This article addresses the effect of the rupture process on tsunami wave simulations by assessing the propagation of uncertainties from source to wave heights. Thirteen slip models available for the 2004 (Mw 9.2) Sumatra earthquake are utilized in the evaluation. First, quasi-static displacement of the ocean floor is estimated using Okada’s solutions. Further, the corresponding displacement time histories provided as an initial condition for tsunami simulations by modeling the region in Clawpack. The simulated results are compared against the four tidal-gauge data available in the east-coast of India and three altimeter recordings from satellites. The comparisons pointed to the sensitivity of simulated wave heights toward the input slip distribution and rupture process. Further, it is noted from the standard deviations estimated between the results of thirteen models that the value reduced from maximum slip (6.53 m) to displacement (2.60 m), which further reduces in the wave height estimates (1.70 m). Hence, this study suggests the need for proper quantification of the uncertainty propagation in tsunami hazard estimations. © 2020, Springer Nature B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168461
Appears in Collections:气候变化与战略

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作者单位: Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, India

Recommended Citation:
Dhanya J.,Raghukanth S.T.G.. Implication of source models on tsunami wave simulations for 2004 (Mw 9.2) Sumatra earthquake[J]. Natural Hazards,2020-01-01,104(1)
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