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    Re: Eac
    From: Frank Reed CT
    Date: 2005 Jun 11, 17:52 EDT

    Peter you wrote:
    "Going south its the opposite story. The current tends  to be strongest out
    along the edge of the continental shelf, at about 200  metres of depth, the
    old 100 fathom line. Just to round off my personal  evidence for the EAC's
    unpredictability, once we were sailing south for about  600 nm along the
    coast, and sat out there, about 10 nm from shore, in the  hope of the current
    wafting us home, as there was little wind. Out of luck,  the current seemed
    to have gone to the same place as the wind, almost  entirely missing."
    
    The EAC, the Kuroshio, the Gulf Stream, the Brazil,  and the Agulhas currents
    are known to oceanographers as the "western boundary  currents". They all
    have similar properties: fast, narrow, riding the the edge  of the continental
    shelf, and prone to spawn large, powerful eddies after they  break away from the
    coast.
    
    There is a real revolution going on in the prediction and analysis of ocean
    currents thanks to real-time satellite altimetry and supercomputer analysis.
    If  you haven't seen it, go here:
    http://www7320.nrlssc.navy.mil/global_nlom32/skill.html
    Start with the  "Global" coverage and then click on "Speed Nowcast" or "Speed
    Forecast".  Download the "Last 12 Months" mpeg if you want to see it come
    alive. It's  amazing --makes the Earth look like Jupiter... You can also get
    detailed  analysis of the EAC under the Pacific coverage.
    
    -FER
    42.0N 87.7W, or  41.4N 72.1W.
    www.HistoricalAtlas.com/lunars
    
    
    

       
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