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    Re: Wind drift, was: DR thread from Nov-Dec '04
    From: Jared Sherman
    Date: 2005 Jan 20, 17:02 -0500

    Bill-
    <<4.  By your definition of seiche, when the wind decreases/stops, gravity
    once again prevails and the piled up water on the leeward side of the body
    rushes to the former windward end to establish equilibrium (level off),
    setting up a wave.
    5.  If the basin is sympathetic, this "sloshing" may be rather dramatic for
    a tideless body of water.>>
    
    Do you recall the recent reports of the tsunami, where the ocean rose, then
    fell, then rose again? I suspect what the Annapolis Book is saying may be
    called seiches in lakes, is not the current itself, but the repeated
    sloshing of waves back and forth across the body of water, after the wind
    falls or as it lulls. Once the water piled up "over here" is no longer being
    wind driven, it will go "back there" and on reaching the opposite shore, it
    will reflect back and forth again and again, many times, until the water has
    expended the energy from all that wind. If the motion and the basin were
    resonant, that would match the definition of seiche as I'd heard it. Why
    they'd associate a *current* with that...dunno.
    
    That's like asking a fisherman what a "blackfish" is. There's a different
    species going by that same name in every corner of the globe. And latin
    names don't count--unless one lives in Latinia.
    
    
    

       
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