| DOI: | 10.1002/2014GL059301
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| 论文题名: | Infrasonic component of volcano-seismic eruption tremor |
| 作者: | Matoza R.S.; Fee D.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10258
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| EISSN: | 1944-9989
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| 出版年: | 2014
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| 卷: | 41, 期:6 | | 起始页码: | 1964
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| 结束页码: | 1970
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| 语种: | 英语
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| 英文关键词: | air-ground coupling
; eruption tremor
; infrasound
; seismo-acoustic
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| Scopus关键词: | Explosives
; Volcanoes
; Air grounds
; Broadband signal
; Cross correlations
; Eruption tremor
; Infrasound
; Mount St. Helens
; seismo-acoustic
; Volcanic eruptions
; Seismology
; data set
; elastic wave
; infrasonics
; magma
; microtremor
; seismic source
; seismograph
; seismology
; volcanic eruption
; Alaska
; Cascade Range
; Ecuador
; Mount Saint Helens
; Redoubt
; Tungurahua
; Tungurahua Volcano
; United States
; Washington [United States]
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| 英文摘要: | Air-ground and ground-air elastic wave coupling are key processes in the rapidly developing field of seismoacoustics and are particularly relevant for volcanoes. During a sustained explosive volcanic eruption, it is typical to record a sustained broadband signal on seismometers, termed eruption tremor. Eruption tremor is usually attributed to a subsurface seismic source process, such as the upward migration of magma and gases through the shallow conduit and vent. However, it is now known that sustained explosive volcanic eruptions also generate powerful tremor signals in the atmosphere, termed infrasonic tremor. We investigate infrasonic tremor coupling down into the ground and its contribution to the observed seismic tremor. Our methodology builds on that proposed by Ichihara et al. (2012) and involves cross-correlation, coherence, and cross-phase spectra between waveforms from nearly collocated seismic and infrasonic sensors; we apply it to datasets from Mount St. Helens, Tungurahua, and Redoubt Volcanoes. © 2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84896691839&doi=10.1002%2f2014GL059301&partnerID=40&md5=ce239c3444172a6462d71b276af9f51a
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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/7522
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, San Diego, CA, United States
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| Recommended Citation: | |
Matoza R.S.,Fee D.. Infrasonic component of volcano-seismic eruption tremor[J]. Geophysical Research Letters,2014-01-01,41(6).
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