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Geosciences 2018, 8(4), 140; https://doi.org/10.3390/geosciences8040140

Proximal Monitoring of the 2011–2015 Etna Lava Fountains Using MSG-SEVIRI Data

1
Centro Nazionale Terremoti (CNT)-Istituto Nazionale di Geofisica e Vulcanologia (INGV), 00143 Rome, Italy
2
Istituto di Scienze dell’Atmosfera e del Clima (ISAC)-Consiglio Nazionale delle Ricerche (CNR), 40129 Bologna, Italy
3
Osservatorio Etneo, Istituto Nazionale di Geofisica e Vulcanologia (INGV), 95123 Catania, Italy
*
Author to whom correspondence should be addressed.
Received: 21 December 2017 / Revised: 7 April 2018 / Accepted: 17 April 2018 / Published: 21 April 2018
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Abstract

From 2011 to 2015, 49 lava fountains occurred at Etna volcano. In this work, the measurements carried out from the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) instrument, on board the Meteosat Second Generation (MSG) geostationary satellite, are processed to realize a proximal monitoring of the eruptive activity for each event. The SEVIRI measurements are managed to provide the time series of start and duration of eruption and fountains, Time Averaged Discharge Rate (TADR) and Volcanic Plume Top Height (VPTH). Due to its temperature responsivity, the eruptions start and duration, fountains start and duration and TADR are realized by exploiting the SEVIRI 3.9 μm channel, while the VPTH is carried out by applying a simplified procedure based on the SEVIRI 10.8 μm brightness temperature computation. For each event, the start, duration and TADR have been compared with ground-based observations. The VPTH time series is compared with the results obtained from a procedures-based on the volcanic cloud center of mass tracking in combination with the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) back-trajectories. The results indicate that SEVIRI is generally able to detect the start of the lava emission few hours before the ground measurements. A good agreement is found for both the start and the duration of the fountains and the VPTH with mean differences of about 1 h, 50 min and 1 km respectively. View Full-Text
Keywords: Etna volcano; 2011–2015 Etna lava fountains; remote sensing; SEVIRI data; eruption start and duration; volcanic plume top height; time averaged discharge rate Etna volcano; 2011–2015 Etna lava fountains; remote sensing; SEVIRI data; eruption start and duration; volcanic plume top height; time averaged discharge rate
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Corradini, S.; Guerrieri, L.; Lombardo, V.; Merucci, L.; Musacchio, M.; Prestifilippo, M.; Scollo, S.; Silvestri, M.; Spata, G.; Stelitano, D. Proximal Monitoring of the 2011–2015 Etna Lava Fountains Using MSG-SEVIRI Data. Geosciences 2018, 8, 140.

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