Results 81 to 90 of about 498 (196)

Validation of Near Real‐Time Retrieval of Plume Mass Eruption Rates: The Case of the 2021 Eruption of La Soufrière, St Vincent

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Satellite observations have enabled an important advance in the near‐real‐time quantification of the dynamic parameters of the volcanic plume spreading in the atmosphere. However, the link between these observations and the estimation of eruption source parameters, such as the mass eruption rate (MER), remains a scientific obstacle to be ...
A. Michaud‐Dubuy, M. Gouhier
wiley   +1 more source

Investigations of the Sinus Aestuum DMD: An Anomalously Large and Compositionally Distinct Lunar Pyroclastic Deposit

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract The Sinus Aestuum (SA) dark mantle deposit (DMD) is a regional pyroclastic deposit on the central lunar near‐side. Spectra from the SA DMD are anomalous when compared to other DMDs and have been interpreted to represent a high abundance of the mineral spinel. The SA spinels are compositionally distinct compared to other lunar spinels and their
Cosmo T. Sikes   +2 more
wiley   +1 more source

Changes in SO2 Flux Regime at Mt. Etna Captured by Automatically Processed Ultraviolet Camera Data

open access: yesRemote Sensing, 2019
We used a one-year long SO2 flux record, which was obtained using a novel algorithm for real-time automatic processing of ultraviolet (UV) camera data, to characterize changes in degassing dynamics at the Mt. Etna volcano in 2016. These SO2 flux records,
Dario Delle Donne   +8 more
doaj   +1 more source

Trigger mechanism and propagation dynamics of pyroclastic density currents at basaltic volcanoes

open access: yesCommunications Earth & Environment
Pyroclastic density currents (PDCs) are among the deadliest manifestations of volcanic eruptions, commonly associated with volcanoes characterized by intermediate to felsic magma compositions and related to eruption column collapse, lateral blasts, or ...
Francesco Zuccarello   +9 more
doaj   +1 more source

The HOTSAT volcano monitoring system based on combined use of SEVIRI and MODIS multispectral data

open access: yesAnnals of Geophysics, 2011
Spaceborne remote sensing of high-temperature volcanic features offers an excellent opportunity to monitor the onset and development of new eruptive activity. To provide a basis for real-time response during eruptive events, we designed and developed the
Ciro Del Negro   +3 more
doaj   +1 more source

Evidences of Plug Pressurization Enhancing Magma Fragmentation During the September 2016 Basaltic Eruption at Piton de la Fournaise (La Réunion Island, France)

open access: yesGeochemistry, Geophysics, Geosystems, 2020
In September 2016, Piton de la Fournaise volcano, well known for its effusive and Hawaiian fountaining activity, produced, at the end of the eruption, an unusual phase of pulsating ash and bomb emission. Integration of geophysical data, with textural and
Simon Thivet   +8 more
doaj   +1 more source

Infrasound reveals transition to oscillatory discharge regime during lava fountaining: Implication for early warning

open access: yesGeophysical Research Letters, 2013
AbstractWe present the analysis of ~4 million infrasonic signals which include 39 episodes of lava fountains recorded at 5.5 km from the active vents. We show that each eruptive episode is characterized by a distinctive trend in the amplitude, waveform, and frequency content of the acoustic signals, reflecting different explosive levels.
ULIVIERI, GIACOMO   +2 more
openaire   +1 more source

Reply to comment by D. Carbone and D. Patanè on “Multidisciplinary investigation on a lava fountain preceding a flank eruption: The 10 May 2008 Etna case” [PDF]

open access: bronze, 2012
Alessandro Bonaccorso   +7 more
openalex   +1 more source

Volcanic SO2 by UV-TIR satellite retrievals: validation by using ground-based network at Mt. Etna

open access: yesAnnals of Geophysics, 2015
Mt. Etna volcano in Italy is one of the most active degassing volcanoes worldwide, emitting a mean of 1.7 Mt/year of Sulphur Dioxide (SO2) in quiescent periods.
Claudia Spinetti   +14 more
doaj   +1 more source

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