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Sulphur dioxide fluxes from Papua New Guinea's volcanoes

Sulphur dioxide fluxes from Papua New Guinea's volcanoes Papua New Guinea (PNG) hosts some of the most prolific degassing volcanoes in the world. Collectively, they are thought to be responsible for a significant contribution of sulfur dioxide to the regional and global atmosphere. Despite their importance, very few measurements of SO2 fluxes from PNG volcanoes have been made in the past, leading to uncertainty in estimates of total global volcanic sulfur budgets. We report here sulphur dioxide flux measurements obtained by ultraviolet spectroscopy during July and August 2003 for the following PNG volcanoes: Tavurvur, Ulawun, Pago, Langila, Bagana and Manam. We found fluxes of 1.3, 7.4, 1.4, 2.9, 23 and 2.1 kg s−1, respectively, for these sources. This amounts to a total of 38 kg s−1 of SO2, constituting some 6–9% and 7–12% of the estimated global time‐integrated volcanic emissions to the atmosphere, and troposphere, respectively. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Geophysical Research Letters Wiley

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References (32)

Publisher
Wiley
Copyright
Copyright © 2004 by the American Geophysical Union.
ISSN
0094-8276
eISSN
1944-8007
DOI
10.1029/2004GL019568
Publisher site
See Article on Publisher Site

Abstract

Papua New Guinea (PNG) hosts some of the most prolific degassing volcanoes in the world. Collectively, they are thought to be responsible for a significant contribution of sulfur dioxide to the regional and global atmosphere. Despite their importance, very few measurements of SO2 fluxes from PNG volcanoes have been made in the past, leading to uncertainty in estimates of total global volcanic sulfur budgets. We report here sulphur dioxide flux measurements obtained by ultraviolet spectroscopy during July and August 2003 for the following PNG volcanoes: Tavurvur, Ulawun, Pago, Langila, Bagana and Manam. We found fluxes of 1.3, 7.4, 1.4, 2.9, 23 and 2.1 kg s−1, respectively, for these sources. This amounts to a total of 38 kg s−1 of SO2, constituting some 6–9% and 7–12% of the estimated global time‐integrated volcanic emissions to the atmosphere, and troposphere, respectively.

Journal

Geophysical Research LettersWiley

Published: Apr 1, 2004

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