DOI: 10.1002/2014GL059324
论文题名: The acoustic signatures of ground acceleration, gas expansion, and spall fallback in experimental volcanic explosions
作者: Bowman D.C. ; Taddeucci J. ; Kim K. ; Anderson J.F. ; Lees J.M. ; Graettinger A.H. ; Sonder I. ; Valentine G.A.
刊名: Geophysical Research Letters
ISSN: 0094-10227
EISSN: 1944-9958
出版年: 2014
卷: 41, 期: 6 起始页码: 1916
结束页码: 1922
语种: 英语
英文关键词: explosion
; explosive eruption
; ground deformation
; infrasound
; scaled depth of burial
; volcano acoustics
Scopus关键词: Acoustics
; Deformation
; Volcanoes
; Explosive eruption
; Ground accelerations
; Ground deformations
; Infrasound
; scaled depth of burial
; Sub-surface explosions
; Volcanic explosions
; Waveform characteristics
; Explosions
; acceleration
; acoustic method
; amplitude
; burial (geology)
; deformation
; infrasonics
; numerical model
; volcanic eruption
; Guatemala [Central America]
; Japan
; Kagoshima [Kyushu]
; Kyushu
; Quezaltenango
; Sakurajima
; Santiaguito
; Suwanose Island
; Tokara Islands
英文摘要: Infrasound and high-speed imaging during a series of field-scale buried explosions suggest new details about the generation and radiation patterns of acoustic waves from volcanic eruptions. We recorded infrasound and high-speed video from a series of subsurface explosions with differing burial depths and charge sizes. Joint observations and modeling allow the extraction of acoustic energy related to the magnitude of initial ground deformation, the contribution of gas breakout, and the timing of the fallback of displaced material. The existence and relative acoustic amplitudes of these three phases depended on the size and depth of the explosion. The results motivate a conceptual model that relates successive contributions from ground acceleration, gas breakout, and spall fallback to the acoustic amplitude and waveform characteristics of buried explosions. We place the literature on infrasound signals at Santiaguito Volcano, Guatemala, and Sakurajima and Suwonosejima Volcanoes, Japan, in the context of this model. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84898894411&doi=10.1002%2f2014GL059324&partnerID=40&md5=77c9aa26605ba4a9b6fe5cb260942652
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7491
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Department of Geological Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
Recommended Citation:
Bowman D.C.,Taddeucci J.,Kim K.,et al. The acoustic signatures of ground acceleration, gas expansion, and spall fallback in experimental volcanic explosions[J]. Geophysical Research Letters,2014-01-01,41(6).