In reference to http://www.sott.net/articles/show/221541-Strange-Phenomenon-Sun-rises-two-days-early-in-Greenland-sparks-fear
Okay. That's weird if it's true. The first thing to ask here is how valid the observation is. . .
What's the real time frame on the Sun reappearing? A look at a local tourist agency website tells us. . .
Similar information is noted elsewhere. . .
http://www.ilulissattn.com/English/Ilulissat.htm
http://www.greenland-guide.gl/reg-north.htm
That's just my cursory approach to the question, but it seems to verify the dates. (I'm sure a person with better knowledge in the geo-sciences would be better suited to answering that than me, but I'll go with it for now.)
Next. Did the Sun really come back two days ahead of schedule, or is this a hoax of some kind? We have a radio station report on the event. Is there confirmation? We may have to wait on that.
Assuming that this is the real thing, then it's a big, big deal.
There are a number of early theories flying around, one of the loudest of which being that Global Warming is to blame, (that the ice on the horizon has fallen due to melting.) Frankly, that sounds a little hysterical and ill-considered to me for a number of reasons. (Wouldn't the Sun rise be measured over a somewhat fixed horizon, like water or land and not something as mutable as snow-covered ice? It's a Port town, after all, built on rock with an ocean view. Also, isn't one of the tenets of global warming that the seas will rise? Doesn't much of that icepack float? But I digress. . .)
Another quickly floated theory is that of atmospheric illusions being a possible culprit. I don't know enough either way to comment, so we'll have to wait for better data.
But if it really is the Sun people are seeing, and if it really is two days early, then that does leave the question hanging. Especially, if the relative position of the stars has not changed.
One thought which immediately struck me was this. . .
I can't remember where I saw it, but I recall that the speed of the Earth's rotation has slowed down. It was mentioned somewhere around here, but I've not looked for it yet. The mention stuck in memory, though.
If so, then the that would change the shape of the planet. The bulge around the equator would retract and the planet would become become more round. Light would strike Greenland more easily if it were less flat at the top of the world. Here's a graphic which helps visualize the effect. (The yellow dot being where the Sun is directly overhead and the lighted area where the light hits before going past the edge of the planet. If you can picture that map printed on a ball, and then picture that ball being pressed down from the top to make it wider around the equator, then that pressure being slightly released, it is possible to see how the Sun's light would reach a little further North.)
From http://www.gaisma.com/en/location/ilulissat.html
Anyway, it was just a first thought, and I suspect things are a fair bit more complicated, but I wanted to throw it out there.
(EDIT: I can't seem to get that graphic to appear. It's the bottom image on the linked page, if you want to take a look at it.)
The sun has arrived two days early in Greenland according to KNR Radio. It usually rises on January 13th but for some reason rose on 1/11/11 this year.
Inhabitants from the area appeared worried when witnessing the strange phenomenon. "The sun is not supposed to be here until January 13th, something isn't right" a 74 year old local reported to KBR radio.
Okay. That's weird if it's true. The first thing to ask here is how valid the observation is. . .
What's the real time frame on the Sun reappearing? A look at a local tourist agency website tells us. . .
From http://www.worldofgreenland.com/index.php?id=24&L=en
"Ilulissat lies approximately 350 km north of the polar circle. Thus, there is midnight sun from May 21st to July 24th. Equivalently there is a period of time between November 26th and January 12th where the sun does not appear. However, during the day there is always a period of twilight midday with light for 3-4 hour. On January 13th the sun reappers in Ilulissat at 13 minutes to 1 pm. For many this is a half day off, that is celebrated on Holms Bakke where the sun is greeted with song and fireworks."
Similar information is noted elsewhere. . .
http://www.ilulissattn.com/English/Ilulissat.htm
http://www.greenland-guide.gl/reg-north.htm
That's just my cursory approach to the question, but it seems to verify the dates. (I'm sure a person with better knowledge in the geo-sciences would be better suited to answering that than me, but I'll go with it for now.)
Next. Did the Sun really come back two days ahead of schedule, or is this a hoax of some kind? We have a radio station report on the event. Is there confirmation? We may have to wait on that.
Assuming that this is the real thing, then it's a big, big deal.
There are a number of early theories flying around, one of the loudest of which being that Global Warming is to blame, (that the ice on the horizon has fallen due to melting.) Frankly, that sounds a little hysterical and ill-considered to me for a number of reasons. (Wouldn't the Sun rise be measured over a somewhat fixed horizon, like water or land and not something as mutable as snow-covered ice? It's a Port town, after all, built on rock with an ocean view. Also, isn't one of the tenets of global warming that the seas will rise? Doesn't much of that icepack float? But I digress. . .)
Another quickly floated theory is that of atmospheric illusions being a possible culprit. I don't know enough either way to comment, so we'll have to wait for better data.
But if it really is the Sun people are seeing, and if it really is two days early, then that does leave the question hanging. Especially, if the relative position of the stars has not changed.
One thought which immediately struck me was this. . .
I can't remember where I saw it, but I recall that the speed of the Earth's rotation has slowed down. It was mentioned somewhere around here, but I've not looked for it yet. The mention stuck in memory, though.
If so, then the that would change the shape of the planet. The bulge around the equator would retract and the planet would become become more round. Light would strike Greenland more easily if it were less flat at the top of the world. Here's a graphic which helps visualize the effect. (The yellow dot being where the Sun is directly overhead and the lighted area where the light hits before going past the edge of the planet. If you can picture that map printed on a ball, and then picture that ball being pressed down from the top to make it wider around the equator, then that pressure being slightly released, it is possible to see how the Sun's light would reach a little further North.)
From http://www.gaisma.com/en/location/ilulissat.html
Anyway, it was just a first thought, and I suspect things are a fair bit more complicated, but I wanted to throw it out there.
(EDIT: I can't seem to get that graphic to appear. It's the bottom image on the linked page, if you want to take a look at it.)