"bob watkinson" wrote in message
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"Mr Blowman" S@not here.karoo.co.uk wrote in message
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"bob watkinson" wrote in message
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Having just enjoyed the aurora here in central Scotland I have a
question. Does the phenomena always occur at night for some reason or
does it occur and go unnoticed during the day too?


To answer your question Bob I'm pasting a post from "snock" on TWO :




"technically local midnight brings the most intense part of the aurora
over your location (particles streaming in from the sun will logically
gather on the 'lee' side of the Earth from the sun, i.e. midnight) but
really it has more to do with the current activity than the time of day,
midwinter in Alaska brings 'daytime' auroras but of course it is dark

Stu Nock
Beckenham, Kent"





Regards



Sean B

Thanks for that. I've also noticed it happens mostly when it's icy cold
too.


It's probably due to the clear visibilty we get during a polar maritime Bob.
Nothing like fresh air really, it's a pity we experience so infrequently.
However with the current decrease in "Global dimming" who knows, the only
barrier then would be urban light pollution. Oh and not to mention the
Methane HydroCarbons released when the Earth is 10C warmer



Regards


Sean B