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  • Secular Variation in Rainfall Intensity and Temperature in Eastern Australia

    Author(s)
    Chen, Yi-Ru
    Yu, Bofu
    Jenkins, Graham
    Griffith University Author(s)
    Yu, Bofu
    Jenkins, Graham A.
    Chen, Yi-Ru
    Year published
    2013
    Metadata
    Show full item record
    Abstract
    It is generally assumed that rainfall intensity will increase with temperature increase, irrespective of the underlying changes to the average rainfall. This study documents and investigates long-term trends in rainfall intensities, annual rainfall, and mean maximum and minimum temperatures using the Mann-Kendall trend test for nine sites in eastern Australia. Relationships between rainfall intensities at various durations and 1) annual rainfall and 2) the mean maximum and minimum temperatures were investigated. The results showed that the mean minimum temperature has increased significantly at eight out of the nine sites ...
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    It is generally assumed that rainfall intensity will increase with temperature increase, irrespective of the underlying changes to the average rainfall. This study documents and investigates long-term trends in rainfall intensities, annual rainfall, and mean maximum and minimum temperatures using the Mann-Kendall trend test for nine sites in eastern Australia. Relationships between rainfall intensities at various durations and 1) annual rainfall and 2) the mean maximum and minimum temperatures were investigated. The results showed that the mean minimum temperature has increased significantly at eight out of the nine sites in eastern Australia. Changes in annual rainfall are likely to be associated with changes in rainfall intensity at the long duration of 48 h. Overall, changes in rainfall intensity at short durations (<1 h) positively correlate with changes in the mean maximum temperature, but there is no significant correlation with the mean minimum temperature and annual rainfall. Additionally, changes in rainfall intensity at longer durations (=1 h) positively correlate with changes in the mean annual rainfall, but not with either mean maximum or minimum temperatures for the nine sites investigated.
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    Journal Title
    Journal of Hydrometeorology
    Volume
    14
    Issue
    4
    DOI
    https://doi.org/10.1175/JHM-D-12-0110.1
    Copyright Statement
    Self-archiving of the author-manuscript version is not yet supported by this journal. Please refer to the journal link for access to the definitive, published version or contact the authors for more information.
    Subject
    Environmental Engineering Modelling
    Atmospheric Sciences
    Publication URI
    http://hdl.handle.net/10072/53830
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    • Journal articles

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