What is the Arctic circle

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2018-03-24 03:03:07

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Arctic circleIn the Northern hemisphere is the Arctic circle, and South, respectively, of the line South of the Arctic zone. The first is considered a border zone of temperate climate and the Arctic. The Antarctic circle is the climatic boundary of Antarctica. June 21-22 (summer solstice) the sun never sets and the winter solstice (21-22 December) - not traced.

In connection with changes in the tilt of earth's axis, is the daily offset of the line of the Arctic circle (Arctic circle) up to three meters per day and up to one hundred meters per year. Experts have made calculations until 2015. It is established that first, the Arctic circle will shift to the North. In the subsequent nine years after 2015, the year – at four hundred meters to the South.

The Boundary of the polar night is defined by the Arctic circle, if the Sun is a luminous point, the Earth it has no atmosphere. In fact, the day begins when the upper point of the solar disk. Moreover, the apparent position is above real lights due to refraction (the bending of rays in the atmosphere). In this regard, the Arctic circle lies fifty minutes South of the border of the polar night.

Arctic circleThe First time the concept of the Arctic circle was introduced by Eudoxus of Cnidus (a disciple of Plato). He understood the relationship between the axial tilt of the planet and lighting in the different areas of the Ground, tied up the climate and latitude of the location. Eudoxus introduced the definition of "climate". The location of the polar circle, in his opinion, it was 54 degrees. All the places he was considered them unfit for human life.

Approximately 327-m BC, the first sailor, who was able to cross the Arctic circle, became a geographer PIFA. Arctic day he observed in the Norwegian sea.

The First Navigator to swim southern circle, was cook. It happened during his trip around the world.

The Arctic circle in Europe passes through the territory of Norway, Finland, Russia, Sweden. Line crosses in Russia the Republic of Karelia, Murmansk oblast, Kandalaksha Bay, Mezen and lip in the White sea, Nenets Autonomous Okrug, Komi Republic and other areas. Part of the mainland, which is located to the North of the circle is called the Arctic.

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For the Bering Strait line continues in America. In this territory of the Arctic circle passes through Alaska, three regions of Canada. Next line goes on Baffin island, Fox Bay, Greenland, and Denisova Strait.

And the circle in the North Atlantic passes through the Danish Straits, the island of Grimsey belonging to Iceland and the Norwegian and Greenland seas.

Arctic circleSouth circle crosses a number of territories of Antarctica and the southern ocean. The line passes through the Antarctic Peninsula, the Lazarev sea, Weddel, Cosmonauts, Amundsen Gulf and the sea Risser-Lansana. From the shores of the Gulf of Amundsen, the line of the Arctic circle crosses the Commonwealth sea, Enderby land and Princess Elizabeth, the Pravda coast, Davis sea, in Vincennes Bay, the Mawson sea, shore and Knox. Next line alternately passes through the ocean and different beaches on the land of Wilkes. Near “Dumont, Durval" (French station) out in the Pacific sector of the southern ocean from the Antarctic continent.


Article in other languages:

BE: https://tostpost.com/be/nav-ny-gramadstva/15874-shto-takoe-pa-nochny-palyarny-krug.html

DE: https://tostpost.com/de/news-und-gesellschaft/15885-was-ist-der-n-rdliche-polarkreis.html

ES: https://tostpost.com/es/noticias-y-sociedad/15894-qu-es-el-c-rculo-polar-rtico.html

KK: https://tostpost.com/kk/zha-aly-tar-o-am/15873-b-l-severnyy-polyarnyy-krug.html

PL: https://tostpost.com/pl/aktualno-ci-i-spo-ecze-stwo/15849-co-to-jest-ko-o-podbiegunowe.html

PT: https://tostpost.com/pt/not-cias-e-sociedade/15847-o-que-o-norte-do-c-rculo-polar-rtico.html

TR: https://tostpost.com/tr/haber-ve-toplum/15878-nedir-kuzey-kutup-daire.html

UK: https://tostpost.com/uk/novini-ta-susp-l-stvo/15866-scho-take-p-vn-chniy-polyarne-kolo.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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