Bent - Atmospheric Plume Analysis

By Marcus I Bursik

University at Buffalo, SUNY (UB)

Atmospheric Plume Analysis

Launch Tool

You must login before you can run this tool.

Version 1.0.5a - published on 11 Apr 2013

Open source: license | download

View All Supporting Documents

Category

Tools

Published on

Abstract

A theoretical model of a volcanic plume, based on applying the equations of motion in a plume-centered coordinate system, suggests that the interaction between a volcanic plume and wind causes enhanced entrainment of air and horizontal momentum, plume bending, and a decrease in plume rise height at constant eruption rate. Because of rapid dilution in the high windspeeds of the polar jet, plumes that vary over more than one order of magnitude in mass eruption rate (106 to 108 kg/s), if injected into the polar jet, may all attain rise heights only slightly different from that of the core of the jet, ~10 km, as opposed to 17 – 33 km in a still atmosphere.

The model outputs plume trajectories and rise heights, as well as pyroclast loadings as a function of height, and can therefore be used to produce input for advection-diffusion and volcanic ash transport models such as tephra2 or puff.

Cite this work

Researchers should cite this work as follows:

  • Marcus I Bursik (2013), "Bent - Atmospheric Plume Analysis," https://vhub.org/resources/bent.

    BibTex | EndNote