Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL078243 |
Dome Collapse Interaction With the Atmosphere | |
Barfucci, G.; Ripepe, M. | |
2018-09-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:17页码:8923-8930 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy |
英文摘要 | Dome collapse is a dramatic volcanic process, yet the dynamics and evolution of dome collapse still present open questions. Observational data are rare, and this limits our ability to interpret the evolution of this phenomenon in terms of risk assessment. We show how the partial dome collapse of Soufriere Hills Volcano on 2010 evolved in less than 45min and was characterized by five main different episode of dome failure process. Time and amplitude of seismic and infrasonic records associated with successive pyroclastic density currents show a nearly quadratic temporal trend suggesting a self-accelerating process increasing in intensity up to the failure limit. Each episode generated gravity waves in the atmosphere, representing the first evidence of internal waves formed due to propagation of density currents in stratified fluids. Finally, we use gravity waves to estimate the total erupted mass and the plume height of the Vulcanian explosions triggered by the decompression induced by the collapse. Plain Language Summary Dome collapse is a dramatic and highly dangerous volcanic process involving the destabilization of large volume of hot material rushing as turbulent and destructive flows for kilometers down the flanks of the volcano. Dome collapse may trigger also large volcanic explosions that injecting a large amount of ash into the atmosphere constitute a serious risk for the air traffic. Dynamics of the dome instability still present open questions limiting our ability to assess the related hazard. Recent dome collapse reveals a strong interaction with the atmosphere. We show that collapse dynamics is able to induce buoyancy oscillations of the whole atmosphere generating gravity waves. These waves as linked to density currents were only theoretical predicted, and this is the first evidence in natural environment. We show that the collapse evolved in five main steps lasting only 45min and that forecast methods based on seismoacoustic wavefield can be used to predict the end of the collapse. Finally, we used the oscillation of the atmosphere to estimate the mass of ash injected and the plume height of the Vulcanian eruption triggered by the collapse. |
英文关键词 | come collapse Vulcanian eruption gravity waves failure law |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000445727500025 |
WOS关键词 | SOUFRIERE-HILLS-VOLCANO ; LINEARLY STRATIFIED FLUID ; PYROCLASTIC FLOWS ; UNZEN VOLCANO ; VULCANIAN EXPLOSIONS ; MERAPI VOLCANO ; SEISMIC DATA ; MONTSERRAT ; WAVES ; ERUPTION |
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/26955 |
专题 | 气候变化 |
作者单位 | Univ Florence, Dept Earth Sci, Florence, Italy |
推荐引用方式 GB/T 7714 | Barfucci, G.,Ripepe, M.. Dome Collapse Interaction With the Atmosphere[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(17):8923-8930. |
APA | Barfucci, G.,&Ripepe, M..(2018).Dome Collapse Interaction With the Atmosphere.GEOPHYSICAL RESEARCH LETTERS,45(17),8923-8930. |
MLA | Barfucci, G.,et al."Dome Collapse Interaction With the Atmosphere".GEOPHYSICAL RESEARCH LETTERS 45.17(2018):8923-8930. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Barfucci, G.]的文章 |
[Ripepe, M.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Barfucci, G.]的文章 |
[Ripepe, M.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Barfucci, G.]的文章 |
[Ripepe, M.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论