Resources: Presentations

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  1. Dirty plumes, tephra dispersion and deposition

    29 Jan 2011 | Presentations | Contributor(s): Shannon Kobs Nawotniak

    This lecture is part of the Large-scale Experiments Workshop held in September, 2010.

  2. Eyjafjallajokull WMO meeting, Geneva, Bursik presentation

    19 Oct 2010 | Presentations | 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

  3. bent: A model of plumes in crossflow

    11 Nov 2010 | Presentations | 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.

  4. AGU Poster

    09 Dec 2010 | Presentations | Contributor(s): Marcus I Bursik

    Draft of the AGU poster for 13-17 Dec 2010.

  5. 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.

  6. 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

  7. Phreatic and phreatomagmatic fragmentation

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

  8. 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.

  9. 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.

  10. 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,...