DOI: 10.1002/2016GL069001
论文题名: Conduit dynamics and post explosion degassing on Stromboli: A combined UV camera and numerical modeling treatment
作者: Pering T.D. ; McGonigle A.J.S. ; James M.R. ; Tamburello G. ; Aiuppa A. ; Delle Donne D. ; Ripepe M.
刊名: Geophysical Research Letters
ISSN: 0094-9703
EISSN: 1944-9434
出版年: 2016
卷: 43, 期: 10 起始页码: 5009
结束页码: 5016
语种: 英语
英文关键词: computational fluid dynamics
; daughter bubbles
; gas flux
; gas slugs
; Strombolian eruptions
; uv cameras
Scopus关键词: Cameras
; Computational fluid dynamics
; Degassing
; Dynamics
; Flow of gases
; Numerical models
; Sulfur dioxide
; Volcanoes
; Explosivity
; Gas flux
; Gas slugs
; High temporal resolution
; Stromboli volcano
; Strombolian eruptions
; UV cameras
; Volcanic degassing
; Gases
; computational fluid dynamics
; degassing
; explosion
; gas flow
; measurement method
; numerical model
; volcano
; Italy
; Lipari Islands
; Messina [Sicily]
; Sicily
; Stromboli
; Gastropoda
英文摘要: Recent gas flux measurements have shown that Strombolian explosions are often followed by periods of elevated flux, or “gas codas,” with durations of order a minute. Here we present UV camera data from 200 events recorded at Stromboli volcano to constrain the nature of these codas for the first time, providing estimates for combined explosion plus coda SO2 masses of ≈18–225 kg. Numerical simulations of gas slug ascent show that substantial proportions of the initial gas mass can be distributed into a train of “daughter bubbles” released from the base of the slug, which we suggest, generate the codas, on bursting at the surface. This process could also cause transitioning of slugs into cap bubbles, significantly reducing explosivity. This study is the first attempt to combine high temporal resolution gas flux data with numerical simulations of conduit gas flow to investigate volcanic degassing dynamics. ©2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971344170&doi=10.1002%2f2016GL069001&partnerID=40&md5=7295014503f5d73844bb675f6ea8beac
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10666
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Department of Geography, University of Sheffield, Sheffield, United Kingdom
Recommended Citation:
Pering T.D.,McGonigle A.J.S.,James M.R.,et al. Conduit dynamics and post explosion degassing on Stromboli: A combined UV camera and numerical modeling treatment[J]. Geophysical Research Letters,2016-01-01,43(10).