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    Re: Dip uncertainty
    From: Alexandre Eremenko
    Date: 2004 Dec 8, 11:05 -0500

    On Wed, 8 Dec 2004, Fred wrote:
    
    > This is not a difficult problem in classic optics.
    > A theoretical treatment would suffice.
    
    Maybe. The problem is whether it is possible to
    predict refraction precisely if the temperature
    (presure, humidity etc. what else?) profiles
    are known. Then the problem splits into two:
    to do such prediction mathematically, and to see
    how these profiles may vary. Both parts seem to be
    solvable.
    
    There should exist enormous statistics of temperature-presure
    profiles under all possible conditions.
    (For example, when I was serving in anti-aircraft artillery,
    we had to input these data to the fire control device several times
    a day. We were obtaining this data from a special weather station).
    
    Alex.
    
    
    

       
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