气候变化领域集成服务门户(CCPortal): Relocation of the 17 June 2017 Nuugaatsiaq (Greenland) Landslide Based on Green's Functions From Ambient Seismic Noises

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DOI	10.1029/2019JB018947
	Relocation of the 17 June 2017 Nuugaatsiaq (Greenland) Landslide Based on Green's Functions From Ambient Seismic Noises
	Xie J.; Chu R.; Ni S.
发表日期	2020
ISSN	21699313
卷号	125 期号:5
英文摘要	Landslide is one of the most dangerous geological hazards in mountainous regions, which causes large casualties. Fast and accurate location of a landslide is critical to disaster mitigation and early warning of secondary hazards. The landslide location is a difficult problem in a remote region with sparse seismic network due to low resolution of the velocity structure model. Green's functions from ambient seismic noises can be used to calibrate effects due to the uncertainty of velocity structure. In this study, we relocate a large landslide occurred in Nuugaatsiaq, Greenland, on 17 June 2017 using relative location method based on Green's functions from ambient seismic noises. The location result of the landslide is about 2.5 km away from the site given by satellite image. This is better than the result based on traditional location method, which has a deviation up to ~17 km. Our result demonstrates that this algorithm can provide accurate location of landslide with seismographic stations in global and regional networks, thus providing timely assistance to early warning of secondary hazards. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	ambient seismic noise; cross-correlation function; landslides location; surface wave
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187849
作者单位	State Key Laboratory of Geodesy and Earth's Dynamics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Xie J.,Chu R.,Ni S.. Relocation of the 17 June 2017 Nuugaatsiaq (Greenland) Landslide Based on Green's Functions From Ambient Seismic Noises[J],2020,125(5).
APA	Xie J.,Chu R.,&Ni S..(2020).Relocation of the 17 June 2017 Nuugaatsiaq (Greenland) Landslide Based on Green's Functions From Ambient Seismic Noises.Journal of Geophysical Research: Solid Earth,125(5).
MLA	Xie J.,et al."Relocation of the 17 June 2017 Nuugaatsiaq (Greenland) Landslide Based on Green's Functions From Ambient Seismic Noises".Journal of Geophysical Research: Solid Earth 125.5(2020).