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    Sea ice drift in the Arctic since the 1950s

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    2008GL034791.pdf (433.7Kb)
    Date
    2008-10-03
    Author
    Hakkinen, Sirpa M. A.  Concept link
    Proshutinsky, Andrey  Concept link
    Ashik, Igor M.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/3370
    As published
    https://doi.org/10.1029/2008GL034791
    DOI
    10.1029/2008GL034791
    Keyword
     Climate variability; Arctic and Antarctic oceanography; Ice mechanics and air/sea/ice exchange processes 
    Abstract
    Sea ice drift data (from Russian North Pole stations, various ice camps, and the International Arctic Buoy Program) and surface wind stress data from the NCAR/NCEP Reanalysis are analyzed to determine their long-term trends and causality. The study finds that both parameters (ice drift and wind stress) show gradual acceleration over last 50 years. Significant positive trends are present in both winter and summer data. The major cause of observed positive trends is increasing Arctic storm activity over the Transpolar Drift Stream caused by a shift of storm tracks toward higher latitudes. It is speculated, with some observational evidence, that the increased stirring of the ocean by winds could hasten the transition of the Arctic toward a weakly stratified ocean with a potential for deep convection and a new sink for atmospheric CO2.
    Description
    Author Posting. © American Geophysical Union, 2008. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 35 (2008): L19704, doi:10.1029/2008GL034791.
    Collections
    • Physical Oceanography (PO)
    Suggested Citation
    Geophysical Research Letters 35 (2008): L19704
     

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