globalchange  > 科学计划与规划
DOI: 10.1002/2016GL070140
论文题名:
Estimate of tsunami source using optimized unit sources and including dispersion effects during tsunami propagation: The 2012 Haida Gwaii earthquake
作者: Gusman A.R.; Mulia I.E.; Satake K.; Watada S.; Heidarzadeh M.; Sheehan A.F.
刊名: Geophysical Research Letters
ISSN: 0094-8638
EISSN: 1944-8369
出版年: 2016
卷: 43, 期:18
起始页码: 9819
结束页码: 9828
语种: 英语
英文关键词: directivity of tsunami source ; dispersion effect ; genetic algorithm ; optimized source model ; submarine mass failure ; the 2012 Haida Gwaii earthquake
Scopus关键词: Dispersion (waves) ; Earthquakes ; Fault slips ; Genetic algorithms ; Geophysics ; Seismology ; Submarines ; Surface waters ; Directivity of tsunami source ; Dispersion effect ; Haida gwaii ; Source modeling ; Submarine mass failure ; Tsunamis
英文摘要: We apply a genetic algorithm to find the optimized unit sources using dispersive tsunami synthetics to estimate the tsunami source of the 2012 Haida Gwaii earthquake. The optimal number and distribution of unit sources gives the sea surface elevation similar to that from our previous slip distribution on a fault using tsunami data, but different from that using seismic data. The difference is possibly due to submarine mass failure in the source region. Dispersion effects during tsunami propagation reduce the maximum amplitudes by up to 20% of conventional linear longwave propagation model. Dispersion effects also increase tsunami travel time by approximately 1 min per 1300 km on average. The dispersion effects on amplitudes depend on the azimuth from the tsunami source reflecting the directivity of tsunami source, while the effects on travel times depend only on the distance from the source. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84988807132&doi=10.1002%2f2016GL070140&partnerID=40&md5=5b9a9bd9aa88d703a5397e33b456aa95
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9601
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: Earthquake Research Institute, University of Tokyo, Tokyo, Japan

Recommended Citation:
Gusman A.R.,Mulia I.E.,Satake K.,et al. Estimate of tsunami source using optimized unit sources and including dispersion effects during tsunami propagation: The 2012 Haida Gwaii earthquake[J]. Geophysical Research Letters,2016-01-01,43(18).
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