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    Re: How often can you see the sunrise/sunset - PLEASE HELP?
    From: Greg Rudzinski
    Date: 2007 Dec 5, 15:08 -0800

    Try weather.gov . click on contact us and ask your question. NOAA
    should be able to give you some numbers.
    Greg Rudzinski
    On Dec 5, 5:22 am, Isonomia  wrote:
    > For many years I have been searching for information on the
    > probability of seeing the sun as it either hits or rises above the
    > horizon.
    > Whilst it seems incredible, as far as I can tell there is NO
    > INFORMATION ON THIS SUBJECT either specifically for any location or
    > generally for any particular location at any time of year.
    > All I have been able to ascertain is that in one location (Paisly
    > Scotland), the sun shines for roughly 30% of the day in summer and
    > around 15% in winter.
    > Unfortunately, I suspect the probability of seeing the sun is largely
    > determined only by the altitude of the sun, and as the sunrise/sunset
    > is always on the horizon, I suspect the probability of seeing the sun
    > does not change significantly from summer to winter in a maritime
    > climate like the UK.
    > As I have been unable to find any hard data on the subject, I really
    > could do with some "soft" information and those involved in navigation
    > although not necessarily having taken a reading at sunset/sunrise,
    > might be more aware of the sun shining and/or may have some records of
    > some form even if it is the number of days on which a siting may be
    > possible at a particular time.
    > Questions:-
    > 1. Is sunrise/set more visible at sea?
    > 2. Is navigation "visible"  related to meteological records of
    > "sunshine"?
    > 3. How much does the probability of seeing the sunrise/set vary by
    > location (even in the same climate?) E.g. are there places that
    > irrespective of local geography have many more sights of sunrise/set?
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