Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item:

Authors: Wright, T.*
Burton, M.*
Pyle, D. M.*
Caltabiano, T.*
Title: Visualising volcanic gas plumes with virtual globes
Title of journal: Computers and Geosciences
Series/Report no.: /35(2009)
Publisher: Elsevier
Issue Date: 2009
DOI: 10.1016/j.cageo.2009.02.005
Keywords: Volcanic Plumes
Abstract: The recent availability of small, cheap ultraviolet spectrometers has facilitated the rapid deployment of automated networks of scanning instruments at several volcanoes, measuring volcanic SO2 gas flux at high frequency. These networks open up a range of other applications, including tomographic reconstruction of the gas distribution which is of potential use for both risk mitigation, particularly to air traffic, and environmental impact modelling. Here we present a methodology for visualising reconstructed plumes using virtual globes, such as GoogleEarth, which allows animations of the evolution of the gas plume to be displayed and easily shared on a common platform. We detail the process used to convert tomographically reconstructed cross-sections into animated gas plume models, describe how this process is automated and present results from the scanning network around Mt.Etna, Sicily. We achieved an average rate of one frame every12 min, providing a good visual representation of the plume which can be examined from all angles. Increating these models, an approximation to turbulent diffusion in the atmosphere was required. To this end we derived the value of the turbulent diffusion coefficient for quiescent conditions near Etna to be around 200–500 m2s-1.
Appears in Collections:04.08.01. Gases
Papers Published / Papers in press

Files in This Item:

File SizeFormatVisibility
Wright 2009 Comp Geosci Visualing volcanic gas plumes with virtual globes.pdf2.15 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License
Creative Commons

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Share this record




Stumble it!



Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA