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Plots of Wind Patterns of the World's Volcanoes
07 Feb 2018 | Contributor(s): Larry G Mastin
This product includes rose diagrams and tables of wind patterns at volcanoes listed in the Smithsonian Institution’s Volcanoes of the World Database. At each volcano, the speed and direction of wind above the volcano were read from output of the NCEP/NCAR Reanalysis 1 model, at...
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Confort 15 (Conflow improvement)
22 Apr 2016 | 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...
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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...
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Plumeria_wd--Fortran open-source version
06 Dec 2011 | Contributor(s): Larry Garver Mastin
This is an open-source Fortran version of Plumeria, a one-dimensional steady-state model for volcanic plumes. It calculates plume properties such as upward velocity, radius, density, mass fractions of particles, air, water vapor, liquid water and ice, as a function of height in a plume. The...
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Plumeria 2.3.1
06 Dec 2011 | Contributor(s): Larry Garver Mastin
This is a graphical 1-D steady-state model for the dynamics of volcanic plumes. Written in Visual Basic, it runs on all computers having a Windows operating system (Windows 98 or later).Input values are entered into text boxes in the GUI. These magma temperature, gas content, vent diameter,...
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eject model
01 Feb 2011 | Contributor(s): Larry Garver Mastin
Eject is a user-friendly model that calculates the trajectories of blocks that are ballistically ejected from volcanic craters. It has also been used to calculate ballistic trajectories of other objects in other other settings, including missiles and bullets.Details are at:The attached zip...
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Conflow 1.0.5
01 Feb 2011 | Offline Tools | 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...
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conflow linux fortran version
25 Jan 2011 | Offline Tools | Contributor(s): Larry Garver Mastin
Conflow is a numerical model that calculates steady-state flow of magma-gas mixtures through volcanic conduits during explosive eruptions. It is described in publications listed at the bottom of this message. A GUI written in Visual Basic which runs Conflow on Windows is available in a separate...