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    Extraordinary September Arctic sea ice reductions and their relationships with storm behavior over 1979-2008

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    Extraordinary September Arctic sea ice reductions and their relationships with storm behavior over 1979-2008 (263.4Kb)

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    Author
    SIMMONDS, IAN; KEAY, KEVIN
    Date
    2009
    Source Title
    Geophysical Research Letters
    Publisher
    American Geophysical Union
    University of Melbourne Author/s
    Simmonds, Ian; KEAY, KEVIN
    Affiliation
    Science - Earth Sciences
    Metadata
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    Document Type
    Journal Article
    Citations
    Simmonds, I. & Keay, K. (2009). Extraordinary September Arctic sea ice reductions and their relationships with storm behavior over 1979-2008. Geophysical Research Letters, 36, doi:10.1029/2009GL039810.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/32752
    Description

    © 2009 American Geophysical Union

    Abstract
    Dramatic changes have been observed in Arctic sea ice, cyclone behavior and atmospheric circulation in recent decades. Decreases in September ice extent have been remarkable over the last 30 years, and particularly so in very recent times. The analysis reveals that the trends and variability in September ice coverage and mean cyclone characteristics are related, and that the strength (rather than the number) of cyclones in the Arctic basin is playing a central role in the changes observed in that region, especially in the last few years. The findings reinforce suggestions that the decline in the extent and thickness of Arctic ice has started to render it particularly vulnerable to future anomalous cyclonic activity and atmospheric forcing.
    Keywords
    Arctic climate; Arctic storms; climate change

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