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    Re: (Fwd) The Most Anomalous Refraction Yet or What ?
    From: Marcel Tschudin
    Date: 2009 Aug 4, 21:57 +0300

    Hi Brad
    
    The link you sent doesn't work at my present domicile in Istanbul.
    Either the address is not complete or the Web-page is censured (yes
    that exists here).
    
    If this is of interest to you, just look at Andy Young's different
    animated simulations which you can find either via the Table of
    Contents http://mintaka.sdsu.edu/GF/bibliog/toc.html or via the
    Alphabetical Index http://mintaka.sdsu.edu/GF/bibliog/alphindex.html
    
    Marcel
    
    On Tue, Aug 4, 2009 at 9:16 PM, Brad Morris wrote:
    >
    > Hi Marcel
    >
    > It took me a bit of time to realize that you are differentiating between two atmospheric effects.
    >
    > 1) Omega Sun.
    > 2) Inversion Sun.
    >
    > Upon investigating these a bit, I came across
    >
    > www.atopics.co.uk
    >
    > which has wonderful pictures of these and other atmospheric effects, to include the 'green flash'.
    >
    > Best Regards
    > Brad
    >
    > -----Original Message-----
    > From: NavList@fer3.com [mailto:NavList@fer3.com] On Behalf Of Marcel Tschudin
    > Sent: Tuesday, August 04, 2009 2:06 PM
    > To: NavList@fer3.com
    > Subject: [NavList 9334] Re: (Fwd) The Most Anomalous Refraction Yet or What ?
    >
    >
    > 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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