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    Re: Extremely poor conditions??
    From: Alexandre Eremenko
    Date: 2012 Mar 20, 19:59 -0700

    Brendan,
    You wrote:

    > can send some more on this if you wish
    > later.

    Yes, please. I am interesting in sub-refraction.
    It was conjectured that refraction in the usual direction
    can raise the horizon, that is lead to an anomalous dip.

    This is somewhat difficult to imagine, because the ray travels only few miles
    from the horizon to my eye, while the usual refraction is the effect
    on a ray from the whole atmsphere.

    Alex.
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