Maar-diatremes - a course module
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13 Jun 2016 | Contributor(s):: Greg A Valentine, Alison Graettinger
Maar-diatremes are one of the most common volcanic landforms on Earth, and represent an end-member type of volcano whose eruptions are dominated by explosive, subsurface magma-water interaction. Thus they should form an important component of volcanology courses. The recent decade has...
Confort 15 (Conflow improvement)
20 Jan 2015 | Contributor(s):: Silvia Campagnola, Claudia Romano, Larry G Mastin, Alessandro Vona
We present an updated version of the Conflow model, an open-source numerical model for flow in eruptive conduits during steady-state pyroclastic eruptions (Mastin and Ghiorso, 2000). In the Confort 15 program, several updates were considered:The rheological parameters of the model are...
Los depósitos de caída de tefra: Una breve revisión sobre su cuantificación y análisis para la clasificación de erupciones volcánicas explosivas, con ejemplos Latinoamericanos
15 Nov 2015 | Contributor(s):: Jorge E. Romero
La cuantificación de los depósitos volcánicos es una de las herramientas más utilizadas en la actualidad para clasificar la magnitud de la actividad volcánica y determinar los peligros volcánicos asociados. En el caso especial de las erupciones...
07 May 2014 | Contributor(s):: Fabio Dioguardi, Pierfrancesco Dellino, Daniela Mele
PYFLOW is a multi-block code for the calculation of the flow field variables of dilute pyroclasticdensity currents (hereafter DPDCs) starting from the deposits characteristics. The code, written inFortran 90, solves an improved version of the model of Dellino et al. (2008): it calculates...
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...
DomeHaz: Dome-forming eruptions database v2.4
26 Jul 2012 | Contributor(s):: Sarah Elizabeth Ogburn, Sue C Loughlin, Eliza S Calder
The DomeHaz database contains over 400 dome-forming episodes, as part of over 200 eruptions, at over 120 volcanoes. Here, you can download a snap-shot, flat view of the larger relational MySQL database as an Excel spreadsheet. Please request group membership to access the database.The...
John J Lyons
An introduction to Santiaguito/Santa Maria Guatemala
27 Apr 2011 | Contributor(s):: William I Rose
An introductory lecture about a pair of related volcanoes in Guatemala, Santa Maria and Santiaguito. Meant to help orient researchers on this great laboratory volcano. The first part of the lecture is followed by Part 2, which in in the supporting documents.Escobar Wolf, R, RO Matias Gomez and WI...
01 Feb 2011 | | Contributor(s):: Larry Garver Mastin
Conflow is a user-friendly program that calculates flow properties of magma-gas mixtures through eruptive conduits during steady explosive volcanic eruptions. It also calculates physical and thermodynamic properties of magma-gas-crystal mixtures. The attached zip file installs the program on any...
Integrating numerical and laboratory models of explosive eruptions with field observations
29 Jan 2011 | | Contributor(s):: Amanda Bachtell Clarke
This lecture is part of the Large-scale Experiments Workshop held in September, 2010.