NavList:

   

Reply

The sun is often visible at solar noon, even on heavily overcast
days.  Not as often, it is frequently more visible at sunrise and
sunset than other periods of daylight, with the exception, mentioned
above, of noon.


On Nov 27, 2007, at 10:28 AM, Isonomia wrote:

>
> As I sit here in the cold grey of a Scottish winter and remember
> seeing the sun for a total of one minute during the last three days,
> I'm wondering how practical a session of "solar navigation" would be
> and whether there is any way to find out how often the sun shines?
>
> I once spoke to the met office but they couldn't (or wouldn't) tell
> me. I've looked at solaration tables for solar panels, but couldn't
> separate out the "background - cloud" light level from the "sunshine"
> hours.
>
> So, perhaps someone here know?
>
> In particular I have the following specific questions (ideally for
> locations of Glasgow and London, summer/winter but any information, on
> any location, anytime would be better than none!):
>
> 1. Assuming a view of the horizon, how often can one see the sun at
> the moment of sunrise/sunset.
> 2. How often can one see the sun at the meridian?
> 3. Howmany hours of navigable sunshine do we get?
>
> Mike
> >



--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to NavList@fer3.com
To , send email to NavList-@fer3.com
-~----------~----~----~----~------~----~------~--~---

   

Reply