globalchange  > 科学计划与规划
DOI: 10.1002/2016GL068076
论文题名:
Volcanic lightning and plume behavior reveal evolving hazards during the April 2015 eruption of Calbuco volcano, Chile
作者: Van Eaton A.R.; Amigo Á.; Bertin D.; Mastin L.G.; Giacosa R.E.; González J.; Valderrama O.; Fontijn K.; Behnke S.A.
刊名: Geophysical Research Letters
ISSN: 0094-9172
EISSN: 1944-8903
出版年: 2016
卷: 43, 期:7
起始页码: 3563
结束页码: 3571
语种: 英语
英文关键词: Calbuco eruption ; plume dynamics ; remote sensing ; volcanic ash ; volcanic hazards ; volcanic lightning
Scopus关键词: Hazards ; Lightning ; Remote sensing ; Sea level ; Uncertainty analysis ; Calbuco eruption ; Plume dynamics ; Volcanic ash ; Volcanic hazards ; Volcanic lightning ; Volcanoes
英文摘要: Soon after the onset of an eruption, model forecasts of ash dispersal are used to mitigate the hazards to aircraft, infrastructure, and communities downwind. However, it is a significant challenge to constrain the model inputs during an evolving eruption. Here we demonstrate that volcanic lightning may be used in tandem with satellite detection to recognize and quantify changes in eruption style and intensity. Using the eruption of Calbuco volcano in southern Chile on 22 and 23 April 2015, we investigate rates of umbrella cloud expansion from satellite observations, occurrence of lightning, and mapped characteristics of the fall deposits. Our remote sensing analysis gives a total erupted volume that is within uncertainty of the mapped volume (0.56 ± 0.28 km3 bulk). Observations and volcanic plume modeling further suggest that electrical activity was enhanced both by ice formation in the ash clouds >10 km above sea level and development of a low-level charge layer from ground-hugging currents. © Published 2016. American Geophysical Union. This article is a US Government work and is in the public domain in the USA.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979492567&doi=10.1002%2f2016GL068076&partnerID=40&md5=806d126e2d1c312e288465cf5b2f48f6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10135
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Cascades Volcano Observatory, U.S. Geological Survey, Vancouver, WA, United States

Recommended Citation:
Van Eaton A.R.,Amigo Á.,Bertin D.,et al. Volcanic lightning and plume behavior reveal evolving hazards during the April 2015 eruption of Calbuco volcano, Chile[J]. Geophysical Research Letters,2016-01-01,43(7).
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