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    Solar proton events of October-November 2003: Ozone depletion in the Northern Hemisphere polar winter as seen by GOMOS/Envisat

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    Authors
    Seppälä, A.
    Verronen, P.T.
    Kyrölä, E.
    Hassinen, S.
    Backman, L.
    Hauchecorne, A.
    Bertaux, J.L.
    Fussen, D.
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    Discipline
    Earth and related Environmental sciences
    Subject
    Climate change
    Correlation methods
    Nitrogen compounds
    Ozone
    Satellites
    Solar radiation
    GOMOS instrument
    Ozone depletion
    Polar winters
    Solar protons
    Protons
    atmospheric chemistry
    Northern Hemisphere
    ozone depletion
    solar activity
    Audience
    Scientific
    Date
    2004
    Metadata
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    Description
    Observations of O3 and NO2 made by the GOMOS instrument on board European Space Agency's Envisat satellite have been used to monitor the increase of NO2 and depletion of ozone due to the solar proton events of October-November 2003. For the first time this phenomenon was measured in polar winter conditions by a satellite instrument. Results show NO2 enhancement of several hundred per cent and tens of per cent ozone depletion between 36 and 60 km, an effect which lasts several months after the events. A comparison of the after-event concentrations of NO2 and ozone reveals a strong negative correlation.
    Citation
    Seppälä, A.; Verronen, P.T.; Kyrölä, E.; Hassinen, S.; Backman, L.; Hauchecorne, A.; Bertaux, J.L.; Fussen, D. (2004). Solar proton events of October-November 2003: Ozone depletion in the Northern Hemisphere polar winter as seen by GOMOS/Envisat. , Geophysical Research Letters, Vol. 31, Issue 19, L19107, DOI: 10.1029/2004GL021042.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/5073
    doi: http://dx.doi.org/10.1029/2004GL021042
    scopus: 2-s2.0-11044231546
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
    NewsHelpdeskBELSPO OA Policy

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