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    Impact of biomass burning emissions and dust on soluble iron deposition to Australian waters, the Southern Ocean and Antarctica

    240399_Winton 2016.pdf (17.21Mb)
    Access Status
    Open access
    Authors
    Winton, Victoria Holly Liberty
    Date
    2016
    Supervisor
    Assoc. Prof. Andrew Bowie
    Assoc. Prof. Ross Edwards
    Type
    Thesis
    Award
    PhD
    
    Metadata
    Show full item record
    School
    Physics and Astronomy
    URI
    http://hdl.handle.net/20.500.11937/630
    Collection
    • Curtin Theses
    Abstract

    The deposition of atmospheric iron to iron-limited ocean waters around Australia and Antarctica can dramatically stimulate the growth of microscopic marine plants. To date, mineral dust was assumed to be the primary source of iron to the ocean. However, only a small fraction of iron in dust is bioavailable. This study has found that Australian bushfires can indirectly increase the bioavailable iron fraction when smoke and mineral dust mix during long-range atmospheric transport to Antarctica.

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