Results 51 to 60 of about 319,392 (290)
Volcano remote sensing with ground-based spectroscopy [PDF]
, 2005 The chemical compositions and emission rates of volcanic gases carry important information about underground magmatic and hydrothermal conditions, with application in eruption forecasting.
Burton M.R +5 more
core +1 more source
Electrification of volcanic plumes
Surveys in Geophysics, 2006 Volcanic lightning, perhaps the most spectacular consequence of the electrification of volcanic plumes, has been implicated in the origin of life on Earth, and may also exist in other planetary atmospheres. Recent years have seen volcanic lightning detection used as part of a portfolio of developing techniques to monitor volcanic eruptions.
Mather, T, Harrison, R
openaire +2 more sources
Quantification of the depletion of ozone in the plume of Mount Etna [PDF]
, 2014 Volcanoes are an important source of inorganic halogen species into the atmosphere. Chemical processing of these species generates oxidised, highly reactive, halogen species which catalyse considerable O3 destruction within volcanic plumes. A campaign of
Aiuppa, A +4 more
core +3 more sources
Journal of Geophysical Research: Atmospheres, 2019 Volcanic gases and aerosols emissions from passive degassing or low eruptive events are now included in most climate models despite large uncertainties still exist about their injection height and their temporal and spatial variability.
J. Pianezze +8 more
semanticscholar +1 more source
Volcanic plume simulation on large scales [PDF]
Journal of Volcanology and Geothermal Research, 1998 Abstract The plume model ATHAM (Active Tracer High Resolution Atmospheric Model) is designed to simulate explosive volcanic eruptions for a given mass flux of pyroclastic material under realistic atmospheric background conditions. Based on the assumption that all particles are small the model's equations are simplified such that, besides equations ...
Oberhuber, J. +3 more
openaire +2 more sources
Reactive halogen chemistry in volcanic plumes [PDF]
Journal of Geophysical Research: Atmospheres, 2007 Bromine monoxide (BrO) and sulphur dioxide (SO2) abundances as a function of the distance from the source were measured by ground‐based scattered light Multiaxis Differential Optical Absorption Spectroscopy (MAX‐DOAS) in the volcanic plumes of Mt. Etna on Sicily, Italy, in August–October 2004 and May 2005 and Villarica in Chile in November 2004.
BOBROWSKI N +6 more
openaire +2 more sources
Geodetic evidence for a buoyant mantle plume beneath the Eifel volcanic area, NW Europe
Geophysical Journal International, 2020 The volcanism of the Eifel volcanic field (EVF), in west-central Germany, is often considered an example of hotspot volcanism given its geochemical signature and the putative mantle plume imaged underneath.
C. Kreemer, G. Blewitt, P. Davis
semanticscholar +1 more source
Reaction Rates Control High-Temperature Chemistry of Volcanic Gases in Air
Frontiers in Earth Science, 2019 When volcanic gases enter the atmosphere, they encounter a drastically different chemical and physical environment, triggering a range of rapid processes including photochemistry, oxidation, and aerosol formation.
Tjarda Roberts +2 more
doaj +1 more source
Investigating the Large-Scale Transport of a Volcanic Plume and the Impact on a Secondary Site
Atmosphere, 2020 Volcanic plumes can be transported across vast distances and can have an impact on solar ultraviolet radiation (UVR) reaching the surface due to the scattering and absorption caused by aerosols.
David Jean Du Preez +5 more
doaj +1 more source
Exploring Io's atmospheric composition with APEX: first measurement of 34SO2 and tentative detection of KCl [PDF]
, 2013 The composition of Io's tenuous atmosphere is poorly constrained. Only the major species SO2 and a handful of minor species have been positively identified, but a variety of other molecular species should be present, based on thermochemical equilibrium ...
Black, J. +5 more
core +2 more sources