Results 31 to 40 of about 16,412 (215)
Scientific Reports, 2021 Pyroclastic density currents are ground hugging gas-particle flows associated to explosive volcanic eruptions and moving down a volcano's slope, causing devastation and deaths.
Pierfrancesco Dellino +4 more
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Frontiers in Earth Science, 2017 High concentration pyroclastic density currents (PDCs) are hot avalanches of volcanic rock and gas and are among the most destructive volcanic hazards due to their speed and mobility.
Sarah E. Ogburn, Eliza S. Calder
doaj +1 more source
Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis [PDF]
, 2015 The morphology, texture, grain size and other physicochemical characteristics of pyroclastic material from the first phases of the Puyehue-Cordon Caulle volcanic complex (PCCVC) eruption, (Southern Andes, Chile), can be associated to the model recently ...
Barone, Vicente +7 more
core +2 more sources
Modeling the Dynamics of Dense Pyroclastic Flows on Venus: Insights Into Pyroclastic Eruptions
Journal of Geophysical Research: Planets, 2021 AbstractOn Venus, relatively young deposits near volcanic and coronal summits with unique radar characteristics have been proposed to be emplaced by pyroclastic density currents (PDCs). The proposed units are laterally extensive, long‐runout deposits showing moderate to high radar backscatter and circular polarization ratio in 12.6 cm wavelength ...
Indujaa Ganesh +2 more
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Numerical Simulation of Pyroclastic Flow of Karangetang Volcano Based on 2015 Eruption Activity
JGEET: Journal of Geoscience, Engineering, Environment and TechnologyOn May 7-9, 2015 the eruptive activity of Mount Karangetang released pyroclastic flows towards the Batuawang River for 3.6 km and hit Kora kora village which is located south of the Main Crater. This pyroclastic flow originated from lava flows during the
Willi FS Banggur +13 more
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Earth, Planets and Space, 2020 The GCOM-C (SHIKISAI) satellite was developed to understand the mechanisms of global climate change. The second-generation global imager (SGLI) onboard GCOM-C is an optical sensor observing wavelengths from 380 nm to 12.0 μm in 19 bands.
Takayuki Kaneko +7 more
doaj +1 more source
Reconciling pyroclastic flow and surge: the multiphase physics of pyroclastic density currents [PDF]
Earth and Planetary Science Letters, 2002 Two end-member types of pyroclastic density current are commonly recognized: pyroclastic surges are dilute currents in which particles are carried in turbulent suspension and pyroclastic flows are highly concentrated flows. We provide scaling relations that unify these end-members and derive a segregation mechanism into basal concentrated flow and ...
Burgisser, Alain, W. Bergantz, George
openaire +2 more sources
Observations and modelling of soil slip-debris flow initiation processes in pyroclastic deposits: the Sarno 1998 event [PDF]
Natural Hazards and Earth System Sciences, 2003 Pyroclastic soils mantling a wide area of the Campanian Apennines are subjected to recurrent instability phenomena. This study analyses the 5 and 6 May 1998 event which affected the Pizzo d’Alvano (Campania, southern Italy).
G. B. Crosta, P. Dal Negro
doaj
Volcanic Generation of Tsunamis: Two New Zealand Palaeo-Events [PDF]
, 2016 Rapid emplacement of a mass via pyroclastic flows, or edifice failure, generates volcanic tsunamis. Physical modelling demonstrates that the efficiency of tsuna-mi generation is influenced by the angle the mass enters the ocean.
de Lange, Willem P., Moon, Vicki G.
core +1 more source
Land, 2022 The Middle Atlas Volcanic Field (MAVF) covers an area of 1500 km2, with a total erupted volume of solid products (e.g., Dense Rock Equivalent or DRE) estimated to be more than 80 km3.
Mohammed Benamrane +3 more
doaj +1 more source