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  1. Conduit Flow Conditions

    22 Feb 2011 | Educational Materials | Contributor(s): Chuck B Connor, Leah Michelle Courtland

    Chuck ConnorPeter LaFeminaC. Connor, P. LaFemina, Spreadsheets across the Curriculum: The Physical Volcanology Collection.

  2. Bubbles in Magmas

    22 Feb 2011 | Educational Materials | Contributor(s): Chuck B Connor, Leah Michelle Courtland

    Chuck ConnorPeter LaFeminaC. Connor, P. LaFemina, Spreadsheets across the Curriculum: The Physical Volcanology Collection.

  3. The Physical Volcanology Collection

    22 Feb 2011 | Courses | Contributor(s): Chuck B Connor

    The Physical Volcanology Collection is a collection of nine modules written to be completed as part of a laboratory component of physical volcanology courses. The modules explore topics such as the physical properties and behavior of magma; fluid flow in conduits, buoyant plumes, lava flows; and...

  4. How to Create a GeoProMT Account

    16 Feb 2011 | Miscellaneous | Contributor(s): Jorge Valentin Bajo

    This video shows how to create a new user account step by step.Done by Jorge V. Bajo

  5. Ash Dispersal Forecast and Civil Aviation Workshop - Model Benchmark Document

    15 Feb 2011 | Publications | Contributor(s): Costanza Bonadonna, Arnau Folch

    One of the main objectives of the IAVCEI-WMO Ash dispersal forecast and civil aviation workshop was to investigate the variability of existing Volcanic Ash Transport and Dispersal Models (VATDM) in order to identify new improved strategies of dispersal forecasting, e.g. probability/ensemble...

  6. Ash Dispersal Forecast and Civil Aviation Workshop - Consensual Document

    15 Feb 2011 | Publications | Contributor(s): Costanza Bonadonna, Arnau Folch

    As a result of the serious consequences of the 2010 Eyjafjallajökull eruption on civil aviation, more than 50 volcanologists, meteorologists, atmospheric dispersion modellers, and space and ground-based monitoring specialists from 12 different countries (including representatives from 6...

  7. Transient behaviour simulation of large, explosive, and ignimbrite forming eruptions by a multiphase thermo fluid dynamic model

    15 Feb 2011 | Presentations | Contributor(s): Simone Lepore

    A multiphase thermo fluid dynamic model has been improved to assess the effect of a range of particle size on the transient two dimensional behaviour of large, explosive, and ignimbrite forming eruptions. The model accounts for mechanical and thermal non-equilibrium conditions between a...

  8. Reducing the threat to aviation from airborne volcanic ash

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

  9. Chaiten eruption observations, May 2008

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

    A review of the Chaiten eruptions based mainly on satellite observations. This lecture was compiled in October 2009.

  10. A summary of available Digital Elevation Models (DEMs)

    09 Feb 2011 | Presentations | Contributor(s): Simon Carn

    A PowerPoint presentation describing some sources of free digital elevation models (DEMs) and their accuracyCreated by Riccardo Tortini (MTU)

  11. Detecting volcanic ash from space

    08 Feb 2011 | Presentations | 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...

  12. Direct sampling of volcanic clouds

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

    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...

  13. Volcanological meteorology

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

    Atmospheric layers, pressure temperature relationships. Origin of winds. Wind shear and pressure maps. Weather satellite data, weather radar systems. Cloud classifications. Radiosondes. Latent heat and Bowen ratios. Phase changes of water.

  14. 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,...

  15. 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.

  16. 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,...

  17. 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.

  18. 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.

  19. Phreatic and phreatomagmatic fragmentation

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

  20. Origin of volcanic ash: Mechanisms for formation

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

    Mechanisms for the formation of volcanic ash are reviewed and discussed, including explosive vesiculation, phreatomagmatic explosions and milling/comminution.