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    A severe thunderstorm climatology for Australia and associated thunderstorm environments

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    A severe thunderstorm climatology for Australia and associated thunderstorm environments (4.268Mb)

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    Author
    Allen, John Terrence; Karoly, David J.; Mills, Graham A.
    Date
    2011
    Source Title
    Australian Meteorological and Oceanographic Journal
    Publisher
    Australian Meteorological and Oceanographic Society
    University of Melbourne Author/s
    ALLEN, JOHN; Karoly, David
    Affiliation
    Science - Earth Sciences
    Metadata
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    Document Type
    Journal Article
    Citations
    Allen, J. T., Karoly, D. J., & Mills, G. A. (2011). A severe thunderstorm climatology for Australia and associated thunderstorm environments. Australian Meteorological and Oceanographic Journal, 61(3), 143-158.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/32768
    Description

    © 2011 Australian Meteorological and Oceanographic Society

    Abstract
    Severe thunderstorms can present a significant threat to life and property in Australia. A unique and broad database of severe thunderstorm reports has been constructed for the Australian region for 2003–2010 from observer reports of hailstones, winds in excess of 90 km h–1 and, less frequently, tornadoes. Based on this database, a climatology of atmospheric environments associated with the occurrence of severe thunderstorms in Australia was developed using pseudo-proximity soundings from the MesoLAPS numerical weather prediction model simulations. Observed soundings have been used to verify derived soundings from MesoLAPS simulations, with a reasonable performance over much of the continent. Proximity rawinsonde soundings from the MesoLAPS simulations were identified for each of the severe thunderstorm reports to develop the climatology of environments. This climatology was then used to derive discriminants between environments with an increased likelihood of severe thunderstorm occurrence and other thunderstorm environments. This appears to be the best way to produce a long-term climatology of severe thunderstorm environment occurrence in a sparsely populated continent without considering the complex problem of initiation.
    Keywords
    thunderstorms; thunderstorm climatology; Australia

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