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Global monitoring o...
Global monitoring of volcanic SO2 degassing with unprecedented resolution from TROPOMI onboard Sentinel-5 Precursor
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- Theys, N. (author)
- Belgian Institute for Space Aeronomy (BIRA-IASB)
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- Hedelt, P. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- De Smedt, I. (author)
- Belgian Institute for Space Aeronomy (BIRA-IASB)
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- Lerot, C. (author)
- Belgian Institute for Space Aeronomy (BIRA-IASB)
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- Yu, H. (author)
- Belgian Institute for Space Aeronomy (BIRA-IASB)
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- Vlietinck, J. (author)
- Belgian Institute for Space Aeronomy (BIRA-IASB)
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- Pedergnana, M. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Arellano, Santiago, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Galle, Bo, 1952 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Fernandez, D. (author)
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Carlito, C. J.M. (author)
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- Barrington, Charlotte (author)
- Nanyang Technological University
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- Taisne, B. (author)
- Nanyang Technological University
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- Granados, H. D. (author)
- Universidad Nacional Autónoma de México (UNAM),Universidad Nacional Autonoma de Mexico
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- Loyola, D. (author)
- Deutsches Zentrums für Luft- und Raumfahrt (DLR),German Aerospace Center (DLR)
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- Roozendael, M. Van (author)
- Belgian Institute for Space Aeronomy (BIRA-IASB)
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(creator_code:org_t)
- 2019-02-25
- 2019
- English.
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In: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322 .- 2045-2322. ; 9:1
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Abstract
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- Over the last four decades, space-based nadir observations of sulfur dioxide (SO2 ) proved to be a key data source for assessing the environmental impacts of volcanic emissions, for monitoring volcanic activity and early signs of eruptions, and ultimately mitigating related hazards on local populations and aviation. Despite its importance, a detailed picture of global SO 2 daily degassing is difficult to produce, notably for lower-tropospheric plumes, due largely to the limited spatial resolution and coverage or lack of sensitivity and selectivity to SO2 of current (and previous) nadir sensors. We report here the first volcanic SO2 measurements from the hyperspectral TROPOspheric Monitoring Instrument (TROPOMI) launched in October 2017 onboard the ESA’s Sentinel-5 Precursor platform. Using the operational processing algorithm, we explore the benefit of improved spatial resolution to the monitoring of global volcanic degassing. We find that TROPOMI surpasses any space nadir sensor in its ability to detect weak degassing signals and captures day-to-day changes in SO2 emissions. The detection limit of TROPOMI to SO2 emissions is a factor of 4 better than the heritage Aura/Ozone Monitoring Instrument (OMI). Here we show that TROPOMI SO2 daily observations carry a wealth of information on volcanic activity. Provided with adequate wind speed data, temporally resolved SO2 fluxes can be obtained at hourly time steps or shorter. We anticipate that TROPOMI SO2 data will help to monitor global volcanic daily degassing and better understand volcanic processes and impacts.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Multidisciplinär geovetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geosciences, Multidisciplinary (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Theys, N.
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Hedelt, P.
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De Smedt, I.
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Lerot, C.
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Yu, H.
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Vlietinck, J.
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show more...
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Pedergnana, M.
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Arellano, Santia ...
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Galle, Bo, 1952
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Fernandez, D.
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Carlito, C. J.M.
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Barrington, Char ...
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Taisne, B.
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Granados, H. D.
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Loyola, D.
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Roozendael, M. V ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Physical Geograp ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Environmental Sc ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geosciences Mult ...
- Articles in the publication
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Scientific Repor ...
- By the university
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Chalmers University of Technology