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    Arctic winter 2005: Implications for stratospheric ozone loss and climate change

    Authors
    Rex, M.
    Salawitch, R.J.
    Deckelmann, H.
    von der Gathen, P.
    Harris, N.
    Chipperfield, M.
    Naujokat, B.
    Reimer, E.
    Allaart, M.
    Andersen, S.
    Bevilacqua, R.
    Braathen, G.
    Claude, H.
    Davis, J.
    De Backer,H.
    Dier, H.
    Dorokov, V.
    Fast,H.
    Gerding, M.
    Godin-Beekmann, S.
    Hoppel, K.
    Johnson, B.
    Kyrö, E.
    Litynska, Z.
    Moore, D.
    Nakane, H.
    Parrondo, C.
    Risley, D.
    Skrivankova, P.
    Stübi, R.
    Viatte, P.
    Yushkov, V.
    Zerefos, C.
    Show allShow less
    Discipline
    Earth and related Environmental sciences
    Subject
    Arctic polar vortex
    2005
    Temperature
    Ozone
    anthropogenic halogens
    Audience
    General Public
    Scientific
    Date
    2006
    Publisher
    IRM
    KMI
    RMI
    Metadata
    Show full item record
    Description
    The Arctic polar vortex exhibited widespread regions of low temperatures during the winter of 2005, resulting in significant ozone depletion by chlorine and bromine species. We show that chemical loss of column ozone (ΔO3) and the volume of Arctic vortex air cold enough to support the existence of polar stratospheric clouds (VPSC) both exceed levels found for any other Arctic winter during the past 40 years. Cold conditions and ozone loss in the lowermost Arctic stratosphere (e.g.; between potential temperatures of 360 to 400 K) were particularly unusual compared to previous years. Measurements indicate ΔO3 = 121 ± 20 DU and that ΔO3 versus VPSC lies along an extension of the compact, near linear relation observed for previous Arctic winters. The maximum value of VPSC during five to ten year intervals exhibits a steady, monotonic increase over the past four decades, indicating that the coldest Arctic winters have become significantly colder, and hence are more conducive to ozone depletion by anthropogenic halogens.
    Citation
    Rex, M.; Salawitch, R.J.; Deckelmann, H.; von der Gathen, P.; Harris, N.; Chipperfield, M.; Naujokat, B.; Reimer, E.; Allaart, M.; Andersen, S.; Bevilacqua, R.; Braathen, G.; Claude, H.; Davis, J.; De Backer,H.; Dier, H.; Dorokov, V.; Fast,H.; Gerding, M.; Godin-Beekmann, S.; Hoppel, K.; Johnson, B.; Kyrö, E.; Litynska, Z.; Moore, D.; Nakane, H.; Parrondo, C.; Risley, D.; Skrivankova, P.; Stübi, R.; Viatte, P.; Yushkov, V.; Zerefos, C. (2006). Arctic winter 2005: Implications for stratospheric ozone loss and climate change. , Issue geophysical research letters, IRM,
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/8681
    Type
    Article
    Peer-Review
    Not pertinent
    Language
    eng
    Links
    NewsHelpdeskBELSPO OA Policy

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