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    Re: Refraction at the horizon.
    From: Marcel Tschudin
    Date: 2008 Mar 20, 13:05 +0200

    >  Nevertheless, there remains much explaining to do, about the very different
    >  senstivity Marcel's model shows, to pressure changes and to temperature
    >  changes.
    
    The reason for this difference is very likely the following:
    
    In the atmospheric model the layer heights (volume) and the
    temperature differences across a layer are constant (according to the
    given lapse rate profile).
    
    Changing the temperature (only) at the observer changes in all layers
    the relative temperature difference (= change of temperature in
    percent of the mean temperature) AND the pressure differences in each
    layer according the hydrostatic equations.
    
    When changing the pressure (only) at the observer the relative
    temperature differences of the layers remain unchanged. Only the
    pressure differences have now to be adjusted in all the layers to the
    different condition at the observer.
    
    Marcel
    
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