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Extensive halogen-mediated ozone destruction over the tropical Atlantic Ocean

Author

Listed:
  • Katie A. Read

    (University of York, Heslington, York YO10 5DD, UK)

  • Anoop S. Mahajan

    (School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK)

  • Lucy J. Carpenter

    (University of York, Heslington, York YO10 5DD, UK)

  • Mathew J. Evans

    (School of Earth and the Environment (SEE), University of Leeds, LS2 9JT, UK)

  • Bruno V. E. Faria

    (Instituto Nacional de Meteorologia Geofísica (INMG), Delegação de São Vicente, Monte, CP 15, Mindelo, Cape Verde)

  • Dwayne E. Heard

    (School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK)

  • James R. Hopkins

    (National Centre for Atmospheric Science (NCAS), University of York, Heslington, York YO10 5DD, UK)

  • James D. Lee

    (National Centre for Atmospheric Science (NCAS), University of York, Heslington, York YO10 5DD, UK)

  • Sarah J. Moller

    (University of York, Heslington, York YO10 5DD, UK)

  • Alastair C. Lewis

    (National Centre for Atmospheric Science (NCAS), University of York, Heslington, York YO10 5DD, UK)

  • Luis Mendes

    (Instituto Nacional de Meteorologia Geofísica (INMG), Delegação de São Vicente, Monte, CP 15, Mindelo, Cape Verde)

  • James B. McQuaid

    (School of Earth and the Environment (SEE), University of Leeds, LS2 9JT, UK)

  • Hilke Oetjen

    (School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK)

  • Alfonso Saiz-Lopez

    (Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA)

  • Michael J. Pilling

    (School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK)

  • John M. C. Plane

    (School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK)

Abstract

Tropical ozone destruction: Halogens tidy up Tropospheric ozone is an important greenhouse gas in addition to its influence on air quality, on the photochemical processing of atmospheric chemicals and on ecosystem viability. Increasing tropospheric ozone levels over the past 150 years have led to a significant climate perturbation and a full understanding of the factors controlling the tropospheric ozone budget is required. The tropical marine boundary layer is the most important global region for loss of ozone, because of its high water vapour content, high solar radiation levels and large geographical extent. Surface atmospheric observations in this region are extremely sparse, hence the importance of a new year-round dataset from Cape Verde Observatory in the tropical North Atlantic Ocean. The observations reveal that the photochemical destruction rate of ozone in the tropical marine boundary layer is about 50% greater than predicted by current global models, and that this destruction is caused by halogen chemistry.

Suggested Citation

  • Katie A. Read & Anoop S. Mahajan & Lucy J. Carpenter & Mathew J. Evans & Bruno V. E. Faria & Dwayne E. Heard & James R. Hopkins & James D. Lee & Sarah J. Moller & Alastair C. Lewis & Luis Mendes & Jam, 2008. "Extensive halogen-mediated ozone destruction over the tropical Atlantic Ocean," Nature, Nature, vol. 453(7199), pages 1232-1235, June.
    • Handle: RePEc:nat:nature:v:453:y:2008:i:7199:d:10.1038_nature07035
    DOI: 10.1038/nature07035
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    Cited by:

    1. Qinyi Li & Rafael P. Fernandez & Ryan Hossaini & Fernando Iglesias-Suarez & Carlos A. Cuevas & Eric C. Apel & Douglas E. Kinnison & Jean-François Lamarque & Alfonso Saiz-Lopez, 2022. "Reactive halogens increase the global methane lifetime and radiative forcing in the 21st century," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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