Results 41 to 50 of about 498 (196)

A year of lava fountaining at Etna: Volumes from SEVIRI [PDF]

open access: greenGeophysical Research Letters, 2012
We present a new method that uses cooling curves, apparent in high temporal resolution thermal data acquired by geostationary sensors, to estimate erupted volumes and mean output rates during short lava fountaining events. The 15 minute temporal resolution of the data allows phases of waxing and peak activity to be identified during short (150‐to‐810 ...
Gaetana Ganci   +7 more
openalex   +5 more sources

Explosive Paroxysmal Events at Etna Volcano of Different Magnitude and Intensity Explored through a Multidisciplinary Monitoring System

open access: yesRemote Sensing, 2022
Between 13 December 2020 and 21 February 2022, Etna volcano produced a sequence of 66 paroxysmal explosive eruptions, with Strombolian activity at the summit craters climaxing in lava fountains and eruption columns extending several kilometers above the ...
Sonia Calvari   +12 more
doaj   +1 more source

Ground tilt changes associated to lava fountains at Mt. Etna

open access: yes, 2023
The ground deformation monitoring on volcanic areas makes use of tilt networks that continuously measure the local surface inclination by using tiltmeters.On Mt. Etna, the INGV-OE manages a permanent tilt network, first installed in the 1990s and then gradually improved, which actually includes 17 bore-hole sensors and one long-base instrument located ...
Privitera, L., Gambino, S.
openaire   +2 more sources

A New Radar‐Based Statistical Model to Quantify Mass Eruption Rate of Volcanic Plumes

open access: yesGeophysical Research Letters, 2023
Accurate forecasting of volcanic particle (tephra) dispersal and fallout requires a reliable estimation of key Eruption Source Parameters (ESPs) such as the Mass Eruption Rate (QM).
L. Mereu   +5 more
doaj   +1 more source

Examples of Multi-Sensor Determination of Eruptive Source Parameters of Explosive Events at Mount Etna

open access: yesRemote Sensing, 2021
Multi-sensor strategies are key to the real-time determination of eruptive source parameters (ESPs) of explosive eruptions necessary to forecast accurately both tephra dispersal and deposition.
Valentin Freret-Lorgeril   +11 more
doaj   +1 more source

A Modified Sandpile Model for Simulating Lava Fountains at Mt Etna

open access: goldProceedings of the 21st International Conference on Informatics in Control, Automation and Robotics
This study aims to achieve two primary objectives. Firstly, it offers empirical evidence on the statistical dis tribution of inter-event times for lava fountains at Mt. Etna between 2011 and 2022, revealing that these times follow a power-law distribution, which supports the hypothesis that volcanic energy release exhibits dynam ics characteristic of ...
G. Nunnari
openalex   +3 more sources

Galileo Flyby Discovers Immense Lava Fountain on a Jovian Moon [PDF]

open access: yesPhysics Today, 2000
By an improbable stroke of good fortune, the north-polar region of Io, the innermost of Jupiter's four Galilean moons, was putting on an extraordinary volcanic display just as NASA's Galileo spacecraft flew by to take pictures on Thanksgiving Day last year. Because its proximity to Jupiter and its orbital resonance with two neighboring moons subject it
openaire   +1 more source

Mt. Etna Paroxysms of February–April 2021 Monitored and Quantified through a Multi-Platform Satellite Observing System

open access: yesRemote Sensing, 2021
On 16 February 2021, an eruptive paroxysm took place at Mt. Etna (Sicily, Italy), after continuous Strombolian activity recorded at summit craters, which intensified in December 2020. This was the first of 17 short, but violent, eruptive events occurring
Francesco Marchese   +10 more
doaj   +1 more source

Role of rheology, ascent rate and outgassing on fragmentation: implications for basaltic lava fountains

open access: gold, 2021
<p>Basaltic volcanoes exhibit a wide range of eruptive styles, from relatively gentle effusive eruptions (producing lava flows and lava domes) to highly explosive activity (where pyroclastic materials are ejected from the vent as a jet or plume).
Giuseppe La Spina   +9 more
openalex   +2 more sources

Automatic Early Warning to Derive Eruption Source Parameters of Paroxysmal Activity at Mt. Etna (Italy)

open access: yesRemote Sensing, 2023
Tephra dispersal and fallout resulting from explosive activity of Mt. Etna (Italy) represent a significant threat to the surrounding inhabited areas as well as to aviation operations.
Luigi Mereu   +5 more
doaj   +1 more source

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