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    Total and tropospheric BrO derived from GOME and SCIAMACHY as part of the temis project

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    Authors
    Theys, N.
    De Smedt, I.
    Van Roozendael, M.
    Fayt, C.
    Chabrillat, S.
    Chipperfield, M.
    Post, P.
    Van Der A, R.
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    Discipline
    Earth and related Environmental sciences
    Subject
    Algorithms
    Bromine compounds
    Catalysts
    Ozone
    Project management
    Upper atmosphere
    Air mass
    Chemical transport
    Ozone chemistry
    Polar atmosphere
    Troposphere
    Audience
    Scientific
    Date
    2005
    Metadata
    Show full item record
    Description
    Bromine monoxide plays an important role in the chemistry of the polar atmosphere because of its high efficiency as a catalyst of the ozone destruction in both the stratosphere and the troposphere. In the polar boundary layer, large cyclic emissions are observed every year at spring (the so-called "bromine explosion" phenomenon), which are responsible for the occurrence of fast and efficient tropospheric ozone destruction events. Total columns of BrO have been monitored by the GOME instrument onboard the ESA ERS-2 satellite since 1995. Since July 2002, similar observations can be obtained with SCIAMACHY on the ENVISAT platform. In the present contribution, analyses for total and tropospheric BrO columns derived from both instruments are described, with a focus on the assessment of their mutual consistency. Attempts to extract quantitative estimates of the tropospheric BrO contents over polar and mid-latitude regions are presented, using an algorithm that combines GOME measurements with SLIMCAT 3D chemical transport calculations. Key aspects of the tropospheric BrO retrieval and current sources of uncertainties are discussed.
    Citation
    Theys, N.; De Smedt, I.; Van Roozendael, M.; Fayt, C.; Chabrillat, S.; Chipperfield, M.; Post, P.; Van Der A, R. (2005). Total and tropospheric BrO derived from GOME and SCIAMACHY as part of the temis project. (Lacoste, H., Ed.), Proceedings of the 2004 Envisat & ERS Symposium, Salzburg, Austria, 6-10 September 2004 (ESA SP-572), Vol. 572, 1109-1115,
    Identifiers
    isbn: 92-9092-883-2
    uri: https://orfeo.belnet.be/handle/internal/4616
    scopus: 2-s2.0-23844503596
    Type
    Conference
    Peer-Review
    No
    Language
    eng
    Links
    NewsHelpdeskBELSPO OA Policy

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