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    Re: (Fwd) The Most Anomalous Refraction Yet or What ?
    From: Marcel Tschudin
    Date: 2009 Aug 4, 21:06 +0300

    George you wrote:
    
    > However, the picture does show a bit of interesting atmospheric disturbance,
    > in that there's an inversion occurs within the lowest few minutes near the
    > horizon, causing the main, highly overexposed, Sun disc to flare out at its
    > lower limb, just where it touches the horizon.
    
    The Omega-sun shows up with super-adiabatic lapse rates, i.e.
    temperature gradients much less than -10�C/km. Inversions are
    generally related to positive temperature gradients (where the sea is
    cold and the air warm), they produce a different picture of the sun,
    not an Omega-sun.
    
    Marcel
    
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