| DOI: | 10.1002/grl.50566
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| 论文题名: | Separation and location of microseism sources |
| 作者: | Moni A.; Craig D.; Bean C.J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8832
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| EISSN: | 1944-8563
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| 出版年: | 2013
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| 卷: | 40, 期:12 | | 起始页码: | 3118
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| 结束页码: | 3122
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| 语种: | 英语
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| 英文关键词: | microseisms
; source separation
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| Scopus关键词: | Azimuth estimation
; Ground vibration
; microseisms
; North East Atlantic
; Phase difference
; Seismic station
; Synthetic models
; Wave climates
; Ocean currents
; Seismology
; Separation
; Source separation
; gravity wave
; Rayleigh wave
; seismic noise
; seismology
; source parameters
; vibration
; wave climate
; wave field
; Atlantic Ocean
; Atlantic Ocean (Northeast)
; Ireland
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| 英文摘要: | Microseisms are ground vibrations caused largely by ocean gravity waves. Multiple spatially separate noise sources may be coincidentally active. A method for source separation and individual wavefield retrieval of microseisms using a single pair of seismic stations is introduced, and a method of back azimuth estimation assuming Rayleigh-wave arrivals of microseisms is described. These methods are combined to separate and locate sources of microseisms in a synthetic model and then applied to field microseismic recordings from Ireland in the Northeast Atlantic. It is shown that source separation is an important step prior to location for both accurate microseism locations and microseisms wavefield studies. Key Points Back-azimuth estimation prior to source separation gives incorrect results Back-azimuths of separated sources are estimated using phase difference analysis Separation improves relationships between wave climate and microseisms ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880565946&doi=10.1002%2fgrl.50566&partnerID=40&md5=ea9baa9e46582fa1336de8d7d6dfc4d9
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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/6096
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Seismology Laboratory, School of Geological Sciences, University College Dublin, Dublin, Ireland
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| Recommended Citation: | |
Moni A.,Craig D.,Bean C.J.. Separation and location of microseism sources[J]. Geophysical Research Letters,2013-01-01,40(12).
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