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ASHEE
14 Aug 2015 | Contributor(s):: Matteo Cerminara, Tomaso Esposti Ongaro
A 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 solid particles, we adopt an asymptotic...
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Use of SFT in Irazu volcano. Negative dispersion case
21 Mar 2015 | Contributor(s):: Jose Brenes
Sequential fragmentation/transport model was applied to Irazu volcano, Costa Rica. Fragmentation coefficient line was treated under a new light
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1992 Spurr Eruption Case Discussion
27 Apr 2011 | Contributor(s):: William I Rose
This lecture summarizes distal ash cloud observations via satellite and radar, along with information about meteorology and fallout, for the 1992 Crater Peak/Spurr eruptions. These small subplinian events produced significant fine and very fine ash fallouts that were sampled and measured. Even...
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Weather Radar Systems (Lacasse et al)
27 Apr 2011 | Contributor(s):: William I Rose
This lecture describes the vital observations that can be made by ground-based weather radar systems. It is based on a paper written by Lacasse et al and which is attached in the supporting documents of this presentation.Lacasse, C, S Karlsdóttir, G Larsen, H Soosalu, W I Rose and G G J...
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NASA Archive of Iceland Eyjafjallajokull Volcano Imagery
11 Mar 2011 | Contributor(s):: Matt Jones
Archive of NASA imagery for Iceland's Eyjafjallajokull Volcano, roughly from 2010-04-15 to 2010-05-26. http://science.larc.nasa.gov/asap/research-ash.html Text by Rob Gutro, NASA's Goddard Space Flight Center, Greenbelt, Md
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Ashfall blankets
08 Feb 2011 | Contributor(s):: William I Rose
Ashfall deposit geometry--blanket. Grain size/distance patterns. Total grain size distributions.Rose, W I, S Self, P J Murrow, G G J Ernst C Bonadonna and A J Durant, 2007, Pyroclastic fall deposit from the October 14, 1974 eruption of Fuego Volcano, Guatemala, Bull Volcanol,70 (9): 1043-1067,...