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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...
Volcanic clouds observed by the A-Train satellite constellation
12 Mar 2012 | Contributor(s):: Simon Carn
A collection of images showing volcanic eruption clouds detected by NASA's A-Train satellite constellation, which includes the Aqua, CALIPSO, CloudSat and Aura satellites. These examples demonstrate the unique ability of the A-Train to provide coincident, multi-spectral, active and passive remote...
13 May 2011 | Contributor(s):: Simon Carn
OMIplot is a software package that can be used to ingest, visualize and analyze sulfur dioxide (SO2) data from the Ozone Monitoring Instrument (OMI) aboard NASA's Aura satellite. The OMI SO2 measurements can be used to track drifting volcanic eruption clouds and study volcanic degassing. OMI...
Mount St Helens 1980-6 Activity summary
27 Apr 2011 | | Contributor(s):: William I Rose
This series of two lectures summarizes the sequence of events asssociated with the 1980-86 eruptions of Mount St Helens, Washington State, USA. It is intended as a refresher for students and researchers.Lipman, Peter W., and Mullineaux, Donal R. (eds.), 1981, The 1980 Eruptions of Mount St....
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
Detecting volcanic ash from space
08 Feb 2011 | | Contributor(s):: William I Rose
How satellites detect, map and measure volcanic ash in volcanic clouds. HYSPLIT and volcanic cloud satellite observations. Volcanic cloud stages. Infrared satellite detectors, split window. Evolution of volcanic clouds from space platforms.Rose, W I, G J S Bluth, D J Schneider, G G J Ernst, C M...
Direct sampling of volcanic clouds
Volcanic clouds have only sporadically been directly sampled. Sampling is advantageous to validate remote sensing. Direct sampling was more common in the 1978-1984 period before the hazards to jet aircraft were understood and when piston aircraft sampling was more prevalent. This sampling...