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    Re: Measuring (and Calculating) Dip
    From: Bill Morris
    Date: 2013 Mar 5, 21:47 -0800

    Brad

    Here are some data for you to play with. The dip was measured with a Wild T2 theodolite, reading to single seconds and the height of eye with a staff and the same thedolite. My wife consented to hold the staff while the water lapped at her feet.
    Wind speed variable, 3 to 5 metres/sec. Light overcast 7/8ths.
    Air temperature 23 deg C
    Water temperature at surface 21.2 deg C
    Waves height: about 10 cm
    Height of eye : Dip
    1.85M : 3'.62
    2.30 : 3'.85
    2.82 : 4'.00
    3.43 : 4'.40
    4.55 : 4'.65

    Enjoy!

    Bill Morris
    Pukenui
    New Zealand
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