Authors
David J Schneider, Alexa R Van Eaton, Kristi L Wallace
Publication date
2020/3
Journal
Bulletin of Volcanology
Volume
82
Issue
3
Pages
29
Publisher
Springer Berlin Heidelberg
Description
Satellite data (GOES, VIIRS, MODIS, AVHRR) were used in near real-time during the 2016–2017 eruption of Bogoslof volcano, Alaska, to detect explosive eruptive activity and to characterize the resulting volcanic clouds. This study examines satellite data to estimate volcanic cloud heights and mass eruption rates for 47 of the 70 explosive events. Eighteen of the volcanic clouds reached an altitude in excess of 8.5 km asl, where they posed a potential hazard to aviation. We estimate eruption rates were in the range of 104–107 kg/s. Eruption durations were available for 28 events, and the total mass of these events was 5.7 × 1010 kg. Most of the explosions occurred from submarine vents, producing volcanic clouds with water-rich characteristics in satellite data. We infer that these water-rich (phreatomagmatic) events contained ice-coated ash particles, which changed their visible and multispectral characteristics …
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