Results 31 to 40 of about 319,392 (290)

The Research Unit VolImpact: Revisiting the volcanic impact on atmosphere and climate – preparations for the next big volcanic eruption [PDF]

open access: yes, 2020
This paper provides an overview of the scientific background and the research objectives of the Research Unit “VolImpact” (Revisiting the volcanic impact on atmosphere and climate – preparations for the next big volcanic eruption, FOR 2820).
Buehler, S.   +15 more
core   +2 more sources

A multi-purpose, multi-rotor drone system for long-range and high-altitude volcanic gas plume measurements

open access: yes, 2021
. A multi-rotor drone has been adapted for studies of volcanic gas plumes. This adaptation includes improved capacity for high-altitude and long-range, real-time SO2 concentration monitoring, long-range manual control, remotely activated bag sampling and
B. Galle   +16 more
semanticscholar   +1 more source

Eyjafjallajökull volcano plume particle-type characterization from space-based multi-angle imaging [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
The Multi-angle Imaging SpectroRadiometer (MISR) Research Aerosol algorithm makes it possible to study individual aerosol plumes in considerable detail.
R. A. Kahn, J. Limbacher
doaj   +1 more source

Annex 1 to: Passive Degassing at Nyiragongo (D.R. Congo) and Etna (Italy) Volcanoes.

open access: yesAnnals of Geophysics, 2015
Volcanic EmissionsThe technique for the assessment of the metal output from volcanoes was based on direct (in- plume) collection of the plume on filter substrates.
Sergio Calabrese   +8 more
doaj   +1 more source

Investigation of chlorine radical chemistry in the Eyjafjallajkull volcanic plume using observed depletions in non-methane hydrocarbons [PDF]

open access: yes, 2011
As part of the effort to understand volcanic plume composition and chemistry during the eruption of the Icelandic volcano Eyjafjallajkull, the CARIBIC atmospheric observatory was deployed for three special science flights aboard a Lufthansa passenger ...
Adam Wisher   +35 more
core   +1 more source

Lidar sounding of volcanic plumes [PDF]

open access: yesSPIE Proceedings, 2013
ABSTRACT Accurate knowledge of gas composition in volcanic plumes has high scientific and societal value. On the one hand, it gives information on the geophysical processes taking place inside volcanos; on the other hand, it provides alert on possible eruptions. For this reasons, it has been suggested to monitor volcanic plumes by lidar. In particular,
Fiorani, L   +8 more
openaire   +2 more sources

The environmental impact of the Puyehue–Cordon Caulle 2011 volcanic eruption on Buenos Aires [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2013
On 4 June 2011, the volcanic complex Puyehue–Cordon Caulle located in the Chilean Andes erupted, producing a plume of gases and particles that eventually circled the Southern Hemisphere, disrupting air travel and depositing ash in large quantities.
G. B. Raga   +4 more
doaj   +1 more source

Long-range transport of volcanic aerosol from the 2010 Merapi tropical eruption to Antarctica [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
Volcanic sulfate aerosol is an important source of sulfur for Antarctica, where other local sources of sulfur are rare. Midlatitude and high-latitude volcanic eruptions can directly influence the aerosol budget of the polar stratosphere.
X. Wu, X. Wu, S. Griessbach, L. Hoffmann
doaj   +1 more source

ASHEE: a compressible, equilibrium-Eulerian model for volcanic ash plumes [PDF]

open access: yes, 2015
A new fluid-dynamic model is developed to numerically simulate the non-equilibrium dynamics of polydisperse gas-particle mixtures forming volcanic plumes. Starting from the three-dimensional N-phase Eulerian transport equations for a mixture of gases and
Berselli, Luigi Carlo   +2 more
core   +4 more sources

Sedimentation from strong volcanic plumes [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2003
We develop descriptions of the key processes influencing tephra dispersal from strong volcanic plumes. These are characterized by the development of a subvertical eruption column in the atmosphere that forms a spreading current at a level of neutral buoyancy.
Bonadonna, Costanza   +1 more
openaire   +3 more sources

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