Colima volcano exercise: planning, development and lessons learned.

07 May 2013 | Contributor(s): Stefano Ciolli

VUELCO conference - Barcelona (Spain), 8th March 2013In the context of Work Package n.9 "Decision making and unrest management", Task n.9.6 "Simulation of unrest and decision-making" is aimed at the organization of four simulation exercises at different target volcanoes,...

Tool Migration to Wheezy

06 May 2013 | Contributor(s): Erich Huebner

Experimental constraints on magma mixing: case studies from Phlegrean Fields and Montserrat

30 Apr 2013 | Contributor(s): Daniele Morgavi, Diego Perugini, Bettina Scheu, Cristina P. De Campos, Donald B. Dingwell

The mixing process in nature is observed at different scales in the rock record, evident through variable structural and textural patterns and morphologies such as filament-like structures, enclaves, and mineral phases showing physico-chemical disequilibrium. The type and geometry of these...

NOAA satellite based volcanic ash retrievals for April 14, 2010 Eyjafjallajokull eruption

26 Apr 2013 | Contributor(s): Michael Pavolonis

The goal of this post is to provide instructions on how to acquire the NOAA satellite based volcanic ash retrievals for April 14, 2010 Eyjafjallajokull eruption. The files, in HDF4 format, are available on anonymous FTP (the FTP will NOT be regularly scrubbed). About 12 GB of disk space is...

Bubble nucleation in H2O-CO2 bearing basaltic melts: results of high temperature decompression experiments

26 Apr 2013 | Contributor(s): Nolwenn Le Gall, Michel Pichavant, Alain Burgisser

AGU Meeting, San Francisco 2012Previous experiments have shown that mechanisms of basalt degassing are strongly contrasted when gas bubbles are present or when they are absent. Thus, experimental information on the kinetics of bubble nucleation in basaltic melts is needed, and high temperature...

CO2-rich melts generated during basalt magma ascent and degassing

26 Apr 2013 | Contributor(s): Michel Pichavant, Ida Di Carlo, Silvio Rotolo, Bruno Scaillet, Alain Burgisser, Nolwenn Le Gall, Caroline Martel

AGU Meeting San Francisco 2012To test mechanisms of basaltic magma degassing, experimental decompressions of volatile-bearing (2.7-3.8 wt% H2O, 600-1300 ppm CO2) Stromboli melts have been performed from 250-200 to 50-25 MPa at 1180-1140°C. Ascent rates were varied from 0.25 to ~ 1.5 m/s. Both the...

Solubility of sulfur in basaltic melts

26 Apr 2013 | Contributor(s): Marina Aletti, Michel Pichavant

VUELCO Conference, 2013, Barcelona (Spain)Sulfur is the third most abundant volatile element in magmatic melts, after H2O and CO2. Involved as a chief actor in many igneous processes, from the volcanic degassing to the formation of ore deposits, and due to the strong dependence between speciation...

Bubble nucleation in basaltic melts: results of high temperature decompression experiments

26 Apr 2013 | Contributor(s): Nolwenn Le Gall, Michel Pichavant

VUELCO Conference, 2013, Barcelona (Spain)Previous experiments have demonstrated that mechanisms of basalt degassing are strongly contrasted when gas bubbles are present or when they are absent. Consequently, experimental information on the kinetics of bubble nucleation in basaltic melts is...

wrf2puff files

25 Apr 2013 | Contributor(s): Elena Ramona Stefanescu

Volcanic Threat in Central America

14 Apr 2013 | Contributor(s): Jose L. Palma

(Presented at AGU Fall Meeting in 2008)This presentation shows an assessment of the volcanic threat posed by the 23 most active and best documented volcanoes in Central America. It also includes a preliminary evaluation for all volcanoes in Guatemala. The results are compared to the threat posed...

Best practices and communication protocols of the volcano monitoring and alert Spanish System

11 Apr 2013 | Contributor(s): Carmen López

VUELCO Conference 2013 (Barcelona, Spain)

VOLCANIC UNREST IN THE 21ST CENTURY

09 Apr 2013 | Contributor(s): Jo Gottsmann, Georgia Phillipson

One of the most pertinent issues in volcanic risk management is the question whether volcanic unrest will culminate in an eruption in the short-term or not. This question is particularly difficult to answer at volcanoes where unrest is preceded by lengthy periods of quiescence and where hard data...

VHAST

04 Apr 2013 | Contributor(s): Gabriel Andrés Bernal

VHAST (Volcanic Hazard Analysis and Simulation Tool)is a probabilistic volcanic hazard assessment software. It has been developed in Visual Basic .NET and runs on Windows XP or later. VHAST supports hazard analysis of lava flows, pyroclastic flows and ash fall, using simplified models.The...

Eruption data for ash-cloud model validation

04 Apr 2013 | Contributor(s): Larry Garver Mastin, Costanza Bonadonna, Arnau Folch, peter webley, barbara stunder, Michael Pavolonis

This is a collection of data, references, and links to data on well-documented eruptions whose observations can be used to validate ash-cloud transport models. Data include, among other things, plume height, duration, erupted volume, satellite observations, numerical wind fields, and grain-size...

Sandra Karl: When Magma breaks - an investigation into the source mechanisms of low frequency events at volcanoes (COV7)

04 Apr 2013 | Contributor(s): Sandra Karl, Jurgen Neuberg

Sandra Karl: The source mechanisms of low frequency events on volcanoes (EGU2012-10589)

04 Apr 2013 | Contributor(s): Sandra Karl, Jurgen Neuberg

ICCS'13 paper

29 Mar 2013 | Contributor(s): Abani Patra