Trends and low frequency variability of East Coast Lows in the twentieth century

Fei Ji, Acacia S. Pepler, Stuart Browning, Jason P. Evans, Alejandro Di Luca

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)
    11 Downloads (Pure)


    East Coast Lows (ECLs) are important weather systems that affect the eastern seaboard of Australia. They have attracted research interest for both their destructive nature and water supplying capability. In this paper, three objective ECL tracking methods are applied to the twentieth century reanalysis ensemble (20CR V2C) for the period of 1851-2014 to identify historical trends and variability in ECLs. While the ensemble mean is unsuitable for tracking ECLs, when all methods are applied to the full 56-member ensemble there is large agreement between tracking methods as to the low-frequency variability and trends in ECLs. The uncertainty between 56 ensemble members has dramatically decreased in recent decades. For comparison, the three tracking methods are also applied to ERA-I reanalysis dataset for the overlapping time period (1980-2009). The inter-annual variability and monthly distribution of ECLs agrees well between different reanalysis for each of tracking methods. The most recent decade has had relatively low numbers of ECLs compared to the previous century.

    Original languageEnglish
    Pages (from-to)1-15
    Number of pages15
    JournalJournal of Southern Hemisphere Earth Systems Science
    Issue number1
    Publication statusPublished - 2018

    Bibliographical note

    Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.


    Dive into the research topics of 'Trends and low frequency variability of East Coast Lows in the twentieth century'. Together they form a unique fingerprint.

    Cite this