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    Ground‐based stratospheric NO2 monitoring at Keflavik (Iceland) during EASOE

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    Authors
    Van Roozendael, M.
    Fayt, C.
    Bolsée, D.
    Simon, P.C.
    Gil, M.
    Yela, M.
    Cacho, J.
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    Discipline
    Earth and related Environmental sciences
    Audience
    Scientific
    Date
    1994
    Metadata
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    Description
    Measurements of nitrogen dioxide total amounts have been performed by ground‐based visible spectrometry at Keflavik, Iceland (64.0°N, 22.6°W) during EASOE. NO2 column amounts below 1×1015 molec/cm² are measured between December 1991 and mid‐February 1992, the lowest values being reached inside the polar vortex during the coldest period of the campaign. The usual correlation between sunset NO2 total columns and 20 hPa temperatures was not observed during the warming of the stratosphere in February. This indicates low N2O5 amounts outside the vortex, possibly related to heterogeneous reactions on Pinatubo aerosol particles. However the low NO2 contents observed could be attributed partly to the advection of air masses from the polar night region.
    Citation
    Van Roozendael, M.; Fayt, C.; Bolsée, D.; Simon, P.C.; Gil, M.; Yela, M.; Cacho, J. (1994). Ground‐based stratospheric NO2 monitoring at Keflavik (Iceland) during EASOE. , Geophysical Research Letters, Vol. 21, Issue 13, 1379-1382, DOI: 10.1029/93GL02433.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/5617
    doi: http://dx.doi.org/10.1029/93GL02433
    scopus: 2-s2.0-0041770010
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
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