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Gold/Mining/Energy : Winspear Resources

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To: maintenance who wrote (13645)	1/30/1999 1:33:00 PM
From: Walt	Read Replies (1) of 26850

DAYLIGHT DISCOURSE Thanks maintenance, I knew there had to be a site like that somewhere on the internet. The nomogram I have I got when I first started working in the north so if I had to do a job somewhere I could figuer out aprox. how much daylight we would be getting.A handy thing to know. I want to spend a few minutes talking about light and dark in the North because I know people down south often dont really apreciate or understand what happens. Yelllowknife is at 62.5 degrees aprox. On the shortest day dec 21 we get about 5 hrs of daylight, meaning the sun is above the horizon but it only gets to around 10 degrees above the horizon so it is light out but the sun is not "intense". So at high noon it is light but not sign ifigantly warmer. From dec 21 to june 21 we go from 5hrs to 20 hrs. So in 182.5 days we gain 15 hrs or 900 minutes of daylight. Around the solstace its only a minute or two a day change but some days its over 5 minutes a day like now. So over a few days it is noticeably more light or dark out and like now one can also notice the sun getting higher above the horizon and thus more intense. Mid march and mid sept are the equinox 12hrs of light and dark. During the summer YK never gets true 24hrs daylight but it never gets dark either, around 11:30 the sun dips just below the horizon and sunset slowly changes to sunrise 4 hrs latter. It is light enough out you could sit outside and read a book. Kids and people who have grown up in the north get scared if they go south in the summer because it gets dark. Also it gets really dark because during our dark period we have snow on the ground and that makes a world of difference. Also our sun rises sunsets last hours. The farther south you go the faster the sun sets and rises. I rember travelling south once stopped at georgian bay in the fall and a good sunset was developing so went to an outcrop by the lake to watch it and was amazed that it was all over in a few minutes. If you happened to live right on the arctic circle on the shortest day you would get no sunlight but around noon there would be a glow on the horizon that would last an hour. On the longest day around 2 in morning the sun would be sitting right on the horizon. So you would have gone from 24hrs darkness to 24hrs daylight. Above the circle you might get a week or month of true darkness in winter depending how far north you go to a week or month os true daylight in the summer. Innuvik has a celebration every year when "the sun returns". I've lived in the far north long enough I take it for granted and it seems normal but it takes a bit of getting use to for visitors. The darkness or lack of daylight in winter depresses some people and the 24hrs light in summer confuses them. One thing for certain it is a lnd of extremes. regards Walt

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