Spatially resolved SO2 flux emissions from Mt Etna

被引:25
|
作者
D'Aleo, R. [1 ]
Bitetto, M. [1 ]
Delle Donne, D. [1 ]
Tamburello, G. [1 ]
Battaglia, A. [1 ]
Coltelli, M. [2 ]
Patane, D. [2 ]
Prestifilippo, M. [2 ]
Sciotto, M. [2 ]
Aiuppa, A. [1 ,3 ]
机构
[1] Univ Palermo, DiSTeM, Palermo, Italy
[2] Ist Nazl Geofis & Vulcanol, Sez Catania, Catania, Italy
[3] Ist Nazl Geofis & Vulcanol, Sez Palermo, Palermo, Italy
基金
欧洲研究理事会;
关键词
volcanic SO2 flux; SO2; cameras; Etna; volcanic degassing; volcanic gases; GAS EMISSIONS; SOUTHEAST CRATER; CAMERA SYSTEM; VOLCANO; SURVEILLANCE; STROMBOLI; GROWTH;
D O I
10.1002/2016GL069938
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
We report on a systematic record of SO2 flux emissions from individual vents of Etna volcano (Sicily), which we obtained using a permanent UV camera network. Observations were carried out in summer 2014, a period encompassing two eruptive episodes of the New South East Crater (NSEC) and a fissure-fed eruption in the upper Valle del Bove. We demonstrate that our vent-resolved SO2 flux time series allow capturing shifts in activity from one vent to another and contribute to our understanding of Etna's shallow plumbing system structure. We find that the fissure eruption contributed similar to 50,000t of SO2 or similar to 30% of the SO2 emitted by the volcano during the 5 July to 10 August eruptive interval. Activity from this eruptive vent gradually vanished on 10 August, marking a switch of degassing toward the NSEC. Onset of degassing at the NSEC was a precursory to explosive paroxysmal activity on 11-15 August.
引用
收藏
页码:7511 / 7519
页数:9
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