DOI: 10.1002/2016GL068042
论文题名: Comparing source inversion techniques for GPS-based local tsunami forecasting: A case study for the April 2014 M8.1 Iquique, Chile, earthquake
作者: Chen K. ; Babeyko A. ; Hoechner A. ; Ge M.
刊名: Geophysical Research Letters
ISSN: 0094-9164
EISSN: 1944-8895
出版年: 2016
卷: 43, 期: 7 起始页码: 3186
结束页码: 3192
语种: 英语
英文关键词: source inversion techniques
; tsunami forecasting
; uncertainty
Scopus关键词: Alarm systems
; Real time systems
; Signal processing
; Tsunamis
; Uncertainty analysis
; Centroid moment tensors
; Inversion techniques
; Source inversion
; Sources of uncertainty
; Tsunami early-warning systems
; Tsunami forecasting
; Uncertainty
; Valuable component
; Forecasting
英文摘要: Real-time GPS is nowadays considered as a valuable component of next generation near-field tsunami early warning systems able to provide fast and reliable source parameters. Looking for optimal methodologies and assessing corresponding uncertainties becomes an important task. We take the opportunity and consider the 2014 Pisagua event as a case study to explore tsunami forecast uncertainty related to the GPS-based source inversion. We intentionally neglect all other sources of uncertainty (observation set, signal processing, wave simulation, etc.) and exclusively assess the effect of inversion technique. In particular, we compare three end-member methods: (1) point-source fastCMT (centroid moment tensor), (2) distributed slip along predefined plate interface, and (3) unconstrained inversion into a single uniform slip finite fault. The three methods provide significantly different far-field tsunami forecast but show surprisingly similar tsunami predictions in the near field. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979468656&doi=10.1002%2f2016GL068042&partnerID=40&md5=7204b71dd8908c0abf8b5eb59663f4f2
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10127
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: German Research Centre for Geosciences, Potsdam, Germany
Recommended Citation:
Chen K.,Babeyko A.,Hoechner A.,et al. Comparing source inversion techniques for GPS-based local tsunami forecasting: A case study for the April 2014 M8.1 Iquique, Chile, earthquake[J]. Geophysical Research Letters,2016-01-01,43(7).