Statistics – Computation
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3517811w&link_type=abstract
Geophysical Research Letters, Volume 35, Issue 17, CiteID L17811
Statistics
Computation
5
Volcanology: Remote Sensing Of Volcanoes, Volcanology: Volcanic Gases, Computational Geophysics: Data Presentation And Visualization, Volcanology: Volcano Monitoring (7280), Computational Geophysics: Data Analysis: Algorithms And Implementation
Scientific paper
Two-dimensional cross sections of the sulphur dioxide (SO2) distribution in the volcanic gas plume of Mt. Etna were reconstructed using tomographic techniques. The data for these projections were generated by a network of five automated scanning spectrometers, positioned on the flanks of the volcano. These measure slant-column amounts of SO2 at 105 different angles, every four minutes. Stable wind conditions allow the plume to be monitored on 82% of days. A time-series of plume cross sections was computed, revealing the potential of this method to track variations in plume position and structure on timescales of minutes to hours, a result of potential importance for air traffic and civil defence in case of eruption, when copious amounts of fine ash can be transported.
Burton Marcia
Caltabiano Tommaso
Pyle David M.
Wright T. E.
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