| DOI: | 10.1002/2016GL068169
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| 论文题名: | Rapid estimation of tsunami source centroid location using a dense offshore observation network |
| 作者: | Yamamoto N.; Hirata K.; Aoi S.; Suzuki W.; Nakamura H.; Kunugi T.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9025
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| EISSN: | 1944-8756
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| 出版年: | 2016
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| 卷: | 43, 期:9 | | 起始页码: | 4263
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| 结束页码: | 4269
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| 语种: | 英语
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| 英文关键词: | S-net
; tsunami centroid location
; tsunami forecasting
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| Scopus关键词: | Earthquakes
; Geophysics
; Hydraulics
; Hydrostatic pressure
; Location
; Surface waters
; 2011 tohoku earthquakes
; Absolute amplitude
; Absolute values
; Observation networks
; Rapid estimation
; S-net
; Sea surface height
; Tsunami forecasting
; Tsunamis
; centroid moment tensor
; forecasting method
; hydrostatic pressure
; observational method
; real time
; sea surface height
; seafloor
; source parameters
; Tohoku earthquake 2011
; tsunami
; Honshu
; Japan
; Japan Trench
; Pacific Ocean
; Tohoku
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| 英文摘要: | This paper proposes a rapid method of estimating tsunami source locations using real-time ocean-bottom hydrostatic pressure data from a dense offshore observation network. We defined two characteristic locations representing the real-time tsunami disturbance and the initial sea surface height distribution. First, we defined the tsunami centroid location (TCL), which is the centroid location of the maximum absolute amplitude of the real-time ocean-bottom hydrostatic pressure changes. Second, we defined the centroid location of the absolute values of the initial sea surface height displacements. To determine whether the TCL can approximate the centroid location of the tsunami source, we examined approximately 1000 near-field synthetic tsunami scenarios and a realistic tsunami scenario of the 2011 Tohoku earthquake in the Japan Trench. From these examinations, it was confirmed that in most scenarios, the TCLs obtained within a few minutes after the occurrence of an earthquake were close to the actual corresponding tsunami source locations. © 2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84966270955&doi=10.1002%2f2016GL068169&partnerID=40&md5=462ab3a4f97d6ad2d3c14a6c48b477fc
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9988
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| 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: | National Research Institute for Earth Science and Disaster Prevention, Tsukuba, Japan
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| Recommended Citation: | |
Yamamoto N.,Hirata K.,Aoi S.,et al. Rapid estimation of tsunami source centroid location using a dense offshore observation network[J]. Geophysical Research Letters,2016-01-01,43(9).
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