Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL084598 |
Volume Flow Rate Estimation for Small Explosions at Mt. Etna, Italy, From Acoustic Waveform Inversion | |
Diaz-Moreno, A.1; Iezzi, A. M.2; Lamb, O. D.3; Fee, D.2; Kim, K.4; Zuccarello, L.5,6,7; De Angelis, S.1 | |
2019-10-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | England; USA; Spain; Italy |
英文摘要 | Rapid assessment of the volume and the rate at which gas and pyroclasts are injected into the atmosphere during volcanic explosions is key to effective eruption hazard mitigation. Here, we use data from a dense infrasound network deployed in 2017 on Mt. Etna, Italy, to estimate eruptive volume flow rates (VFRs) during small gas-and-ash explosions. We use a finite-difference time-domain approximation to compute the acoustic Green's functions and perform a full waveform inversion for a multipole source, combining monopole and horizontal dipole terms. The inversion produces realistic estimates of VFR, on the order of 4 x 10(4) m(3)/s and well-defined patterns of source directivity. This is the first application of acoustic waveform inversion at Mt. Etna. Our results demonstrate that acoustic waveform inversion is a mature and robust tool for assessment of source parameters and holds potential as a tool to provide rapid estimates of VFR in near real time. |
英文关键词 | volcano infrasound Mt Etna waveform inversion FDTD volume flow rate eruption intensity |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000492818700001 |
WOS关键词 | SAKURAJIMA VOLCANO ; SOURCE PARAMETERS ; INFRASOUND ; ERUPTION ; ASH ; TOPOGRAPHY ; DYNAMICS ; PLUMES |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/187806 |
专题 | 气候变化 |
作者单位 | 1.Univ Liverpool, Sch Environm Sci, Liverpool, Merseyside, England; 2.Univ Alaska Fairbanks, Geophys Inst, Alaska Volcano Observ, Alaska, AK USA; 3.Univ North Carolina Chapel Hill, Dept Geol Sci, Chapel Hill, NC USA; 4.Lawrence Livermore Natl Lab, Livermore, CA 94550 USA; 5.Univ Granada, Dept Signal Theo Telemat & Commun, Granada, Spain; 6.Univ Granada, Dept Theoret Phys & Cosmos, Granada, Spain; 7.Inst Nazl Geofis & Vulcanol, Sez Pisa, Pisa, Italy |
推荐引用方式 GB/T 7714 | Diaz-Moreno, A.,Iezzi, A. M.,Lamb, O. D.,et al. Volume Flow Rate Estimation for Small Explosions at Mt. Etna, Italy, From Acoustic Waveform Inversion[J]. GEOPHYSICAL RESEARCH LETTERS,2019. |
APA | Diaz-Moreno, A..,Iezzi, A. M..,Lamb, O. D..,Fee, D..,Kim, K..,...&De Angelis, S..(2019).Volume Flow Rate Estimation for Small Explosions at Mt. Etna, Italy, From Acoustic Waveform Inversion.GEOPHYSICAL RESEARCH LETTERS. |
MLA | Diaz-Moreno, A.,et al."Volume Flow Rate Estimation for Small Explosions at Mt. Etna, Italy, From Acoustic Waveform Inversion".GEOPHYSICAL RESEARCH LETTERS (2019). |
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