Top Rated

1. Eyjafjallajokull WMO meeting, Geneva, Bursik presentation

   19 Oct 2010 | Contributor(s): Marcus I Bursik

   Presentation given at WMO, Geneva, Switzerland by M. Bursik, attempting to summarize work of this group to date (18 Oct 2010).LaTeXNSF-RAPID grant EAR-1041775, Icelandic Meteorological Office

2. bent: A model of plumes in crossflow

   11 Nov 2010 | Contributor(s): Marcus I Bursik

   Bent is an integral trajectory model for calculation of plume parameters in the presence of a crossflow (wind). It has been validated against data for eruptions from Kliuchevskoi and Avachinskiy volcanoes, Russia.

3. Modeling Lava Flows

   23 Jan 2011 | Presentations | Contributor(s): Einat Lev

   A brief description of tools available to model lava flows, and plans for improving these tools in the future.

4. Ground-based SO2 measurements

   29 Jun 2011 | Presentations | Contributor(s): Jose Luis Palma

   This presentation is part of the workshop "Volcanic Hazards and Remote Sensing in Pacific Latin America" held in Costa Rica in January 2011.Speaker: Jose L. Palma

5. Phreatic and phreatomagmatic fragmentation

   08 Feb 2011 | Presentations | Contributor(s): William I Rose

6. Eruption columns

   08 Feb 2011 | Presentations | Contributor(s): William I Rose

   Discussion of gas thrust, convective thrust and eruption columns. Column height and eruption rate. Convection in the atmosphere, latent heat. Stages of evolution of eruption plumes to volcanic clouds.

7. Size of volcanic ash

   08 Feb 2011 | Presentations | Contributor(s): William I Rose

   Size of ash particles is discussed--ash, lapilli, fine and very fine ash, phi sizes, lognormal distributions and bimodal ones. Patterns of fallout and grain size distributions.

8. Particle fall through the atmosphere

   08 Feb 2011 | Presentations | Contributor(s): William I Rose

   Particle fall in atmosphere. Particle Reynolds Numbers, turbulent and laminar flow. Shapes of volcanic ash particles. Fine particle fallout. Aggregation.Rose W I, C M Riley and S Dartevelle, 2003, Sizes and shapes of 10 ma distal ashfall pyroclasts in the Ogalalla Group, Nebraska, J Geology,...

9. Numerical fallout models: An introduction based on Suzuki (1983)

   08 Feb 2011 | Presentations | Contributor(s): William I Rose

   Suzuki, T., 1983. A theoretical model for dispersion of tephra, in: D. Shimozuru and I. Yokoyama (eds) Arc Volcanism: Physics and Tectonics, Terra Scientific Publishing, Tokyo, 95-116.

10. Ashfall blankets

    08 Feb 2011 | Presentations | 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,...