Tags: ash

All Categories (1-16 of 16)

  1. Carolina Silva Parejas


  2. Charlie Ben Feighan


  3. Allison Austin


  4. Justin J Zhang


  5. IDL plotting code from NETCDF files generated by Matlab - Generating Probabilities Exceeding Threshold Results

    27 May 2016 | Contributor(s):: Peter W Webley

    This is the IDL pro files needed to plot the NETCDF outputs from Reza's Matlab code. There is a WORD file that explains each IDL pro file. You will also need the associated PNG files.

  6. 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...

  7. 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

  8. Samantha Engwell


  9. AshCalc

    22 Feb 2014 | | Contributor(s):: Matthew Daggitt, David Pyle, Tamsin Alice Mather

    Calculates exponential, power law and Weibull distributions for tephra volumes from isopach data.

  10. XRD analysis of Sample 5a laderaN of Chaparrastique Volcano, eruption Dec 29th, 2013

    17 Jan 2014 | | Contributor(s):: Bettina Martinez-Hackert

    This is a first analysis of the crystallinity of the black ash material observed in the column of the Dec 29th eruption of Chaparrastique volcano, El Salvador.

  11. SEM of Ash from Dec 29th, 2013 eruption

    17 Jan 2014 | | Contributor(s):: Bettina Martinez-Hackert

    This is the file of the ash analysis via SEM

  12. John J Lyons


  13. Throstur Thorsteinsson


  14. Size of volcanic ash

    08 Feb 2011 | | 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.

  15. Origin of volcanic ash: Mechanisms for formation

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

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

  16. Tephra2

    20 Apr 2010 | | Contributor(s):: Costanza Bonadonna, Laura Connor, Chuck B Connor, Leah Michelle Courtland

    Tephra2 uses the advection diffusion equation to forecast tephra dispersion in a given location based on a user-defined set of eruptive conditions.