A decade of global volcanic SO2 emissions measured from space
The global flux of sulfur dioxide (SO2) emitted by passive volcanic degassing is a key parameter that constrains the fluxes of other volcanic gases (including carbon dioxide, CO2) and toxic trace metals (e.g., mercury). It is also a required input for atmospheric chemistry and climate models, since...
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ftpubmed:oai:pubmedcentral.nih.gov:5343458 2023-05-15T16:59:17+02:00 A decade of global volcanic SO2 emissions measured from space Carn, S. A. Fioletov, V. E. McLinden, C. A. Li, C. Krotkov, N. A. 2017-03-09 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5343458/ http://www.ncbi.nlm.nih.gov/pubmed/28275238 https://doi.org/10.1038/srep44095 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5343458/ http://www.ncbi.nlm.nih.gov/pubmed/28275238 http://dx.doi.org/10.1038/srep44095 Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ CC-BY Article Text 2017 ftpubmed https://doi.org/10.1038/srep44095 2017-03-19T01:12:44Z The global flux of sulfur dioxide (SO2) emitted by passive volcanic degassing is a key parameter that constrains the fluxes of other volcanic gases (including carbon dioxide, CO2) and toxic trace metals (e.g., mercury). It is also a required input for atmospheric chemistry and climate models, since it impacts the tropospheric burden of sulfate aerosol, a major climate-forcing species. Despite its significance, an inventory of passive volcanic degassing is very difficult to produce, due largely to the patchy spatial and temporal coverage of ground-based SO2 measurements. We report here the first volcanic SO2 emissions inventory derived from global, coincident satellite measurements, made by the Ozone Monitoring Instrument (OMI) on NASA’s Aura satellite in 2005–2015. The OMI measurements permit estimation of SO2 emissions from over 90 volcanoes, including new constraints on fluxes from Indonesia, Papua New Guinea, the Aleutian Islands, the Kuril Islands and Kamchatka. On average over the past decade, the volcanic SO2 sources consistently detected from space have discharged a total of ~63 kt/day SO2 during passive degassing, or ~23 ± 2 Tg/yr. We find that ~30% of the sources show significant decadal trends in SO2 emissions, with positive trends observed at multiple volcanoes in some regions including Vanuatu, southern Japan, Peru and Chile. Text Kamchatka Aleutian Islands PubMed Central (PMC) Scientific Reports 7 1 |
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Article Carn, S. A. Fioletov, V. E. McLinden, C. A. Li, C. Krotkov, N. A. A decade of global volcanic SO2 emissions measured from space |
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The global flux of sulfur dioxide (SO2) emitted by passive volcanic degassing is a key parameter that constrains the fluxes of other volcanic gases (including carbon dioxide, CO2) and toxic trace metals (e.g., mercury). It is also a required input for atmospheric chemistry and climate models, since it impacts the tropospheric burden of sulfate aerosol, a major climate-forcing species. Despite its significance, an inventory of passive volcanic degassing is very difficult to produce, due largely to the patchy spatial and temporal coverage of ground-based SO2 measurements. We report here the first volcanic SO2 emissions inventory derived from global, coincident satellite measurements, made by the Ozone Monitoring Instrument (OMI) on NASA’s Aura satellite in 2005–2015. The OMI measurements permit estimation of SO2 emissions from over 90 volcanoes, including new constraints on fluxes from Indonesia, Papua New Guinea, the Aleutian Islands, the Kuril Islands and Kamchatka. On average over the past decade, the volcanic SO2 sources consistently detected from space have discharged a total of ~63 kt/day SO2 during passive degassing, or ~23 ± 2 Tg/yr. We find that ~30% of the sources show significant decadal trends in SO2 emissions, with positive trends observed at multiple volcanoes in some regions including Vanuatu, southern Japan, Peru and Chile. |
format |
Text |
author |
Carn, S. A. Fioletov, V. E. McLinden, C. A. Li, C. Krotkov, N. A. |
author_facet |
Carn, S. A. Fioletov, V. E. McLinden, C. A. Li, C. Krotkov, N. A. |
author_sort |
Carn, S. A. |
title |
A decade of global volcanic SO2 emissions measured from space |
title_short |
A decade of global volcanic SO2 emissions measured from space |
title_full |
A decade of global volcanic SO2 emissions measured from space |
title_fullStr |
A decade of global volcanic SO2 emissions measured from space |
title_full_unstemmed |
A decade of global volcanic SO2 emissions measured from space |
title_sort |
decade of global volcanic so2 emissions measured from space |
publisher |
Nature Publishing Group |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5343458/ http://www.ncbi.nlm.nih.gov/pubmed/28275238 https://doi.org/10.1038/srep44095 |
genre |
Kamchatka Aleutian Islands |
genre_facet |
Kamchatka Aleutian Islands |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5343458/ http://www.ncbi.nlm.nih.gov/pubmed/28275238 http://dx.doi.org/10.1038/srep44095 |
op_rights |
Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
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CC-BY |
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https://doi.org/10.1038/srep44095 |
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Scientific Reports |
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