Results 41 to 50 of about 22,175 (200)

Monitoring SO2 emission at the Soufriere Hills Volcano: implications for changes in erruptive conditions [PDF]

, 1998
FLWINinfo:eu-repo/semantics ...
A. J. H. Maciejewski, Allen, B. Darroux, Barclay, C. A. Gardner, C. M. M. Oppenheimer, Daag, Devine, G. E. Norton, Gerlach, Gerlach, Hammouya, Hirabayashi, I. M. Watson, J. Barclay, J. Stix, Luhr, M. A. Davies, Millán, Millán, Neuberg, Oppenheimer, P. Delmelle, P. W. Francis, Robertson, S. R. Young, Seigneur, Sparks, Stoiber, T. J. Casadevall, Wallace, Young   +31 more
core   +1 more source

Visco-plastic models of isothermal lava domes [PDF]

Journal of Fluid Mechanics, 2000
The dynamics of expanding domes of isothermal lava are studied by treating the lava as a viscoplastic material with the Herschel–Bulkley constitutive law. Thin-layer theory is developed for radially symmetric extrusions onto horizontal plates. This provides an evolution equation for the thickness of the fluid that can be used to model expanding ...
Balmforth, Neil J., Burbidge, A. S., Craster, R. V., Salzig, J., Shen, A.   +4 more
openaire   +3 more sources

A new infrared volcano monitoring using GCOM-C (SHIKISAI) satellite: applications to the Asia-Pacific region

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, Atsushi Yasuda, Kenji Takasaki, Shun Nakano, Toshitsugu Fujii, Yoshiaki Honda, Kouji Kajiwara, Hiroshi Murakami   +7 more
doaj   +1 more source

Magma flow through elastic-walled dikes [PDF]

, 2005
A convection–diffusion model for the averaged flow of a viscous, incompressible magma through an elastic medium is considered. The magma flows through a dike from a magma reservoir to the Earth’s surface; only changes in dike width and velocity over ...
Boer, A. de, Bokhove, O., Woods, A.W.
core   +2 more sources

Disruption of Long-Term Effusive-Explosive Activity at Santiaguito, Guatemala

Frontiers in Earth Science, 2019
Rapid transitions in eruptive activity during lava dome eruptions pose significant challenges for monitoring and hazard assessment. A comprehensive understanding of the dynamic evolution of active lava dome systems requires extensive sets of multi ...
Oliver D. Lamb, Oliver D. Lamb, Anthony Lamur, Alejandro Díaz-Moreno, Silvio De Angelis, Adrian J. Hornby, Adrian J. Hornby, Felix W. von Aulock, Jackie E. Kendrick, Paul A. Wallace, Ellen Gottschämmer, Andreas Rietbrock, Andreas Rietbrock, Isaac Alvarez, Gustavo Chigna, Yan Lavallée   +15 more
doaj   +1 more source

Report of Investigations No. 135 Oligocene Volcanism and Multiple Caldera Formation in the Chinati Mountains, Presidio County, Texas [PDF]

, 1983
UT ...
Cepeda, Joseph C., Henry, Christopher D.
core   +1 more source

Lava dome morphology inferred from numerical modelling

Geophysical Journal International, 2020
SUMMARY Lava domes form when highly viscous magmas erupt on the surface. Several types of lava dome morphology can be distinguished depending on the flow rate and the rheology of magma. Here, we develop a 2-D axisymmetric model of magma extrusion on the surface and lava dome evolution and analyse the dome morphology using a finite-volume
Tsepelev, Igor, Ismail-Zadeh, Alik, Melnik, Oleg   +2 more
openaire   +2 more sources

Eruption style transition during the 2017–2018 eruptive activity at the Shinmoedake volcano, Kirishima, Japan: surface phenomena and eruptive products

Earth, Planets and Space, 2023
Recent eruptions of the Shinmoedake volcano, Japan, have provided a valuable opportunity to investigate the transition between explosive and effusive eruptions. In October 2017, phreatic/phreatomagmatic explosions occurred.
Fukashi Maeno, Sayaka Shohata, Yuki Suzuki, Natsumi Hokanishi, Atsushi Yasuda, Yuya Ikenaga, Takayuki Kaneko, Setsuya Nakada   +7 more
doaj   +1 more source

Spherulite formation in obsidian lavas in the Aeolian Islands, Italy [PDF]

, 2017
The authors wish to gratefully acknowledge Andy Tindle (The Open University) for assistance with EMP analyses, and Richard Darton and David Evans (Keele University) for assistance with XRD and Prof Alun Vaughan and Nicola Freebody (University of ...
Bullock, Liam A., Gertisser, Ralf, O’Driscoll, Brian   +2 more
core   +2 more sources

Volcanic Hazard Assessment for an Eruption Hiatus, or Post-eruption Unrest Context: Modeling Continued Dome Collapse Hazards for Soufrière Hills Volcano

Frontiers in Earth Science, 2020
Effective volcanic hazard management in regions where populations live in close proximity to persistent volcanic activity involves understanding the dynamic nature of hazards, and associated risk.
Elaine T. Spiller, Robert L. Wolpert, Sarah E. Ogburn, Eliza S. Calder, James O. Berger, Abani K. Patra, E. Bruce Pitman   +6 more
doaj   +1 more source