On the use of plume models to estimate the flux in volcanic gas plumes

Julia Woitischek (), Nicola Mingotti, Marie Edmonds and Andrew W. Woods
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Julia Woitischek: University of Cambridge
Nicola Mingotti: University of Cambridge
Marie Edmonds: University of Cambridge
Andrew W. Woods: University of Cambridge

Nature Communications, 2021, vol. 12, issue 1, 1-8

Abstract: Abstract Many of the standard volcanic gas flux measurement approaches involve absorption spectroscopy in combination with wind speed measurements. Here, we present a new method using video images of volcanic plumes to measure the speed of convective structures combined with classical plume theory to estimate volcanic fluxes. We apply the method to a nearly vertical gas plume at Villarrica Volcano, Chile, and a wind-blown gas plume at Mount Etna, Italy. Our estimates of the gas fluxes are consistent in magnitude with previous reported fluxes obtained by spectroscopy and electrochemical sensors for these volcanoes. Compared to conventional gas flux measurement techniques focusing on SO2, our new model also has the potential to be used for sulfur-poor plumes in hydrothermal systems because it estimates the H2O flux.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-22159-3

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DOI: 10.1038/s41467-021-22159-3

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