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DOI10.1146/annurev-earth-071719-054845
Tsunami Modeling for the Deep Sea and Inside Focal Areas
Saito T.; Kubota T.
发表日期2020
ISSN0084-6597
起始页码121
结束页码145
卷号48
英文摘要This article reviews tsunami modeling and its relation to recent developments of deep-ocean observations. Unlike near-coast observations, deep-ocean observations have enabled the capture of short-wavelength dispersive tsunamis and reflected waves from the coast. By analyzing these waves, researchers can estimate tsunami sources and earthquake slip distributions more reliably with higher spatial resolution. In addition, fractional tsunami speed reduction due to the elasticity of the Earth medium is now clearly detected. Densely and widely distributed tsunami sensors make it possible to observe tsunamis inside the earthquake focal area, and understanding tsunami generation mechanisms is increasingly important. In order to describe the generation field, we should consider seismic waves overlapping tsunami signals in addition to vertical and horizontal displacements at the sea bottom. The importance of elastic dynamics, in addition to fluid dynamics, is increasing in order for researchers to fully understand tsunami phenomena using the new offshore and inside focal area observations. Deep-ocean observations have advanced tsunami propagation modeling. New deep-ocean observations in earthquake focal areas are expected to detect in situ tsunami generation caused by megathrust earthquakes. The importance of elastic dynamics, in addition to fluid dynamics, is increasing to help researchers fully understand mechanics in tsunami generation and propagation. Tsunami modeling including earthquake rupture and seismic waves contributes to mega-thrust earthquake investigation and disaster mitigation. © Copyright 2020 by Annual Reviews. All rights reserved.
关键词EarthquakesFluid dynamicsOceanographyOffshore oil well productionSeismic wavesDisaster mitigationEarthquake ruptureEarthquake slip distributionHorizontal displacementsMegathrust earthquakesPropagation modelingSpatial resolutionTsunami generationTsunamisdeep seaearthquake rupturefocal mechanismocean waveseismic waveslipspatial resolutionthrust faulttsunami
语种英语
来源机构Annual Review of Earth and Planetary Sciences
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/131916
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GB/T 7714
Saito T.,Kubota T.. Tsunami Modeling for the Deep Sea and Inside Focal Areas[J]. Annual Review of Earth and Planetary Sciences,2020,48.
APA Saito T.,&Kubota T..(2020).Tsunami Modeling for the Deep Sea and Inside Focal Areas.,48.
MLA Saito T.,et al."Tsunami Modeling for the Deep Sea and Inside Focal Areas".48(2020).
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