Reference Article

from Wikipedia, the free encyclopedia

Arctic Circle

The Arctic Circle is one of the five major circles of latitude that mark maps of the Earth.

This is the parallel of latitude that (in 2000) runs 66.56083 degrees north of the Equator.

Everything north of this circle is known as the Arctic, and the zone just to the south of this circle is the Northern Temperate Zone.

The Arctic Circle marks the southern extremity of the polar day (24 hour sunlit day) of the summer solstice in June and the polar night (24 hour sunless night) of the winter solstice in December.

Within the Arctic Circle, the Sun is above the horizon for 24 continuous hours at least once per year, in conjunction with the Arctic's Summer Solstice.

Likewise, in conjunction with the Arctic’s Winter Solstice, the Arctic sun will be below the horizon for at least 24 continuous hours.

Note: This article excerpts material from the Wikipedia article "Arctic Circle", which is released under the GNU Free Documentation License.

See the following related content on ScienceDaily:


Related Videos

last updated on 2014-07-23 at 6:20 pm EDT

Solar Flares Bring Lightshows to Lapland

Solar Flares Bring Lightshows to Lapland

Reuters (Nov. 14, 2013) — A recent increase in solar flare activity is having a spectacular impact here on Earth, with a series of auroras lighting up the skies over the Arctic circle. For videographers like Chad Blakley of Lightsoverlapland.com, the activity has provided an opportunity too good to miss. Rob Muir reports.
Powered by NewsLook.com
Record Ice Melt Opens New Sea Routes

Record Ice Melt Opens New Sea Routes

Reuters (Aug. 24, 2012) — Scientists say Arctic sea ice is likely to shrink to its smallest recorded size sometime next week. The ongoing thaw has opened new sea lanes to shipping, with a Chinese icebreaker recently becoming the first ship to cross the Arctic Ocean from China to Iceland.
Powered by NewsLook.com
Arctic Scramble: Climate Change Prompts Resource Race

Arctic Scramble: Climate Change Prompts Resource Race

France 24 (Mar. 2, 2013) — As the Arctic ice melts, the battle for natural resources is heating up. Up to a quarter of the world's oil and gas deposits are thought to lie beneath the chilly seas, and big global players such as China are trying to get in on the act. In our debate, the Norwegian ambassador to Belgium defends the drilling interests of a traditional Arctic power, while a Swedish Green MEP questions Oslo's stance on the environment.
Powered by NewsLook.com
China, Others Want What's Under the Arctic Ice

China, Others Want What's Under the Arctic Ice

AP (May 15, 2013) — China, South Korea and Japan are all keen on the Arctic for its untapped energy and natural resources. The countries have now been granted observer status at the Arctic Council, meeting in Sweden this week.
Powered by NewsLook.com

Related Stories


Share This



Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins