Exploring the Utility of IASI for Monitoring Volcanic SO 2 Emissions
Abstract Satellite remote sensing is a valuable method for detecting and quantifying sulfur dioxide (SO 2 ) emissions at volcanoes. The use of ultraviolet satellite instruments for monitoring purposes has been assessed in numerous studies, but there are advantages to using infrared measurements, inc...
Published in: | Journal of Geophysical Research: Atmospheres |
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crwiley:10.1002/2017jd027109 2024-09-15T18:15:55+00:00 Exploring the Utility of IASI for Monitoring Volcanic SO 2 Emissions Taylor, Isabelle A. Preston, James Carboni, Elisa Mather, Tamsin A. Grainger, Roy G. Theys, Nicolas Hidalgo, Silvana Kilbride, Brendan McCormick Met Office Academic Partnership National Eye Research Centre 2018 http://dx.doi.org/10.1002/2017jd027109 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2017JD027109 https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2017JD027109 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Geophysical Research: Atmospheres volume 123, issue 10, page 5588-5606 ISSN 2169-897X 2169-8996 journal-article 2018 crwiley https://doi.org/10.1002/2017jd027109 2024-08-27T04:30:10Z Abstract Satellite remote sensing is a valuable method for detecting and quantifying sulfur dioxide (SO 2 ) emissions at volcanoes. The use of ultraviolet satellite instruments for monitoring purposes has been assessed in numerous studies, but there are advantages to using infrared measurements, including that they can operate at night and during high‐latitude winters. This study focuses on the Infrared Atmospheric Sounding Interferometer (IASI). Retrievals developed for this instrument have been shown to be successful when applied to large eruptions, but little has been done to explore their potential for detecting and quantifying emissions from smaller and lower altitude emissions or for the assessment of ongoing activity. Here a “fast” linear retrieval has been applied across the globe to detect volcanic sources of SO 2 . The results are dominated by emissions from explosive eruptions, but signals are also evident from weak eruptions, passive degassing, and anthropogenic activity. Ecuador and Kamchatka were selected for further study with a more processing intensive iterative retrieval which can quantify the SO 2 amount. At Tungurahua in Ecuador, good agreement was seen between IASI, the Ozone Monitoring Instrument (OMI) and ground‐based flux data, demonstrating that the retrieval is capable of capturing relative changes in activity. Similarly, good agreement was found between IASI and OMI in Kamchatka. In this high‐latitude region, OMI is unable to operate for 3 or 4 months in each year. It is therefore suggested that IASI could be used alongside other instruments for evaluating changes in volcanic activity. Article in Journal/Newspaper Kamchatka Wiley Online Library Journal of Geophysical Research: Atmospheres 123 10 5588 5606 |
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Abstract Satellite remote sensing is a valuable method for detecting and quantifying sulfur dioxide (SO 2 ) emissions at volcanoes. The use of ultraviolet satellite instruments for monitoring purposes has been assessed in numerous studies, but there are advantages to using infrared measurements, including that they can operate at night and during high‐latitude winters. This study focuses on the Infrared Atmospheric Sounding Interferometer (IASI). Retrievals developed for this instrument have been shown to be successful when applied to large eruptions, but little has been done to explore their potential for detecting and quantifying emissions from smaller and lower altitude emissions or for the assessment of ongoing activity. Here a “fast” linear retrieval has been applied across the globe to detect volcanic sources of SO 2 . The results are dominated by emissions from explosive eruptions, but signals are also evident from weak eruptions, passive degassing, and anthropogenic activity. Ecuador and Kamchatka were selected for further study with a more processing intensive iterative retrieval which can quantify the SO 2 amount. At Tungurahua in Ecuador, good agreement was seen between IASI, the Ozone Monitoring Instrument (OMI) and ground‐based flux data, demonstrating that the retrieval is capable of capturing relative changes in activity. Similarly, good agreement was found between IASI and OMI in Kamchatka. In this high‐latitude region, OMI is unable to operate for 3 or 4 months in each year. It is therefore suggested that IASI could be used alongside other instruments for evaluating changes in volcanic activity. |
author2 |
Met Office Academic Partnership National Eye Research Centre |
format |
Article in Journal/Newspaper |
author |
Taylor, Isabelle A. Preston, James Carboni, Elisa Mather, Tamsin A. Grainger, Roy G. Theys, Nicolas Hidalgo, Silvana Kilbride, Brendan McCormick |
spellingShingle |
Taylor, Isabelle A. Preston, James Carboni, Elisa Mather, Tamsin A. Grainger, Roy G. Theys, Nicolas Hidalgo, Silvana Kilbride, Brendan McCormick Exploring the Utility of IASI for Monitoring Volcanic SO 2 Emissions |
author_facet |
Taylor, Isabelle A. Preston, James Carboni, Elisa Mather, Tamsin A. Grainger, Roy G. Theys, Nicolas Hidalgo, Silvana Kilbride, Brendan McCormick |
author_sort |
Taylor, Isabelle A. |
title |
Exploring the Utility of IASI for Monitoring Volcanic SO 2 Emissions |
title_short |
Exploring the Utility of IASI for Monitoring Volcanic SO 2 Emissions |
title_full |
Exploring the Utility of IASI for Monitoring Volcanic SO 2 Emissions |
title_fullStr |
Exploring the Utility of IASI for Monitoring Volcanic SO 2 Emissions |
title_full_unstemmed |
Exploring the Utility of IASI for Monitoring Volcanic SO 2 Emissions |
title_sort |
exploring the utility of iasi for monitoring volcanic so 2 emissions |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1002/2017jd027109 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2017JD027109 https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2017JD027109 |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_source |
Journal of Geophysical Research: Atmospheres volume 123, issue 10, page 5588-5606 ISSN 2169-897X 2169-8996 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/2017jd027109 |
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Journal of Geophysical Research: Atmospheres |
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123 |
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10 |
container_start_page |
5588 |
op_container_end_page |
5606 |
_version_ |
1810453884140781568 |