The magic latitude of 66° 33’ marks the Arctic Circle. It marks the southernmost latitude where the sun can stay continuously below or above the horizon for 24 hours. The other major polar circle (other than the Arctic Circle) is the Antarctic Circle. Cet angle n'est pas constant et suit des cycles de périodes diverses. The Arctic Circle passes through the Arctic Ocean, the Scandinavian Peninsula, North Asia, Northern America, and Greenland. The Arctic Circle is about 7,700,000 square miles. Internationally, the Arctic Circle passes through Norway, Sweden, Finland, Russia, Alaska, Canada, Greenland and Iceland. The climate within the Circle is very cold and much of the area is always covered with ice. Le cycle principal possède une période de 41 000 ans et une amplitude de 2,4619°, soit plus de 273 km à la surface. The Arctic Circle, incidentally, is an imaginary line located at 66º, 30'N latitude, and as a guide defines the southernmost part of the Arctic. Instead, the drift occurs because the Earth wobbles on its axis of rotation in a 40,000 year cycle in response to the gravitational attraction of the moon. It’s the angle between the equator and a point on the earth, measured from the centre of the earth. Starting at the prime meridian and heading eastwards, the Arctic Circle passes through: Northern Polar Circle Globe on Vikingen island marking the Arctic Circle in Norway, Arctic Circle marker on island of Grímsey in Iceland, Arctic Circle sign by the Inland Line railway, Sweden, Arctic Circle sign in the Republic of Karelia, Russia, Arctic Circle sign by the Yamalo-Nenets Autonomous Okrug, Russia, A sign in the Sakha Republic (Yakutia), Russia, This article is about one of the five major circles of latitude. The Arctic Circle marks the latitude above which the sun does not set on the summer solstice, and does not rise on the winter solstice. Inquiring minds want to know. Un article de Wikipédia, l'encyclopédie libre. The Arctic is one of the Earth’s great un-spoilt wildernesses and everyone knows that at its centre is the North Pole. The sun at noon is 43 degrees off the zenith. The Arctic circle is defined as a single line of latitude - the current position of which is 66°33′46.3″N, which roughly translates to 66.5 degrees North of the equator. The Arctic Circle lies parallel to the Equator, and is approximately 66.5°* north of the Equator. It marks the northernmost point at which the centre of the noon sun is just visible on the December solstice and the southernmost point at which the centre of the midnight sun is just visible on the June solstice. This number is the latitude of the Arctic Circle. As seen from the Arctic, the Sun is above the horizon for 24 continuous hours at least once per year (and therefore visible at midnight) and below the horizon for 24 continuous hours at least once per year (and therefore not visible at noon). Only four million people live north of the Arctic Circle due to the climate; nonetheless, some areas have been settled for thousands of years by indigenous peoples, who today make up 10% of the region's population. In the Antarctic Circle, all places have twenty-four hours of daylight on the Summer Solstice in December. The position of the Arctic Circle is not fixed and currently runs 66°33′48.3″ north of the Equator. The latitude 23° 26′ North is also known as the Tropic of Cancer. The land within the Arctic Circle is divided among eight countries: Norway, Sweden, Finland, Russia, the United States (Alaska), Canada (Yukon, Northwest Territories, and Nunavut), Denmark (Greenland), and Iceland (where it passes through the small offshore island of Grímsey). Nordland County, including Vikingen Island, Terra Incognita: Exploration of the Canadian Arctic, Temporal Epoch Calculations ©2006 by James Q. Jacobs, Chief Directorate of the Northern Sea Route, United Nations Convention on the Law of the Sea, Effects of global warming on marine mammals, https://en.wikipedia.org/w/index.php?title=Arctic_Circle&oldid=993487747, Creative Commons Attribution-ShareAlike License, This page was last edited on 10 December 2020, at 21:40. The position of the Arctic Circle is not fixed and currently runs 66°33′48.4″ north of the Equator. The largest communities north of the Arctic Circle are situated in Russia, Norway and Sweden: Murmansk (population 295,374), Norilsk (178,018), Tromsø (75,638), Vorkuta (58,133), and Kiruna (22,841). All locations falling north of this latitude are said to be in the Arctic Circle. Rick Perry, United States Secretary of Energy made keynote addresses in the Assembly's opening session. Its latitude depends on the Earth's axial tilt, which fluctuates within a margin of more than 2° over a 41,000-year period, due to tidal forces resulting from the orbit of the Moon. Located about 66.5 degrees north of the Equator lies the Arctic Circle — a line of latitude that outlines the border of Earth's northernmost region known as the Arctic. Address field - enter an address, city, state, place name, postal code or any other name for a location into this field and then click the find button to retrieve its latitude-longitude coordinate pair. The North Pole lies about … [9] The area north of the Circle is about 20,000,000 km2 (7,700,000 sq mi) and covers roughly 4% of Earth's surface.[10]. The Arctic Circle is a circle of latitude that runs 66°33′45.9″ north of the Equator. [4] Consequently, the Arctic Circle is currently drifting northwards (shrinking) at a speed of about 15 m (49 ft) per year. Tropic of Cancer: On the June Solstice the sun is directly overhead the Tropic of Cancer (23.5 degrees north latitude) at noon. [8] The Arctic Circle is the latitude 66° 34′ North. However, because of atmospheric refraction and mirages, and also because the sun appears as a disk and not a point, part of the midnight sun may be seen on the night of the northern summer solstice up to about 50 minutes (′) (90 km (56 mi)) south of the Arctic Circle; similarly, on the day of the northern winter solstice, part of the sun may be seen up to about 50′ north of the Arctic Circle. It marks the southernmost latitude where the sun can stay continuously below or above the horizon for 24 hours – these phenomena are known as the Midnight Sun in the summer and the Polar Night (“Kaamos”) in the winter. In contrast, the largest city north of the Arctic Circle in North America is The Antarctic Circle on the other hand, is the latitude 66° 34′ south. Il s'agit du parallèle de 66° 33′ 49,7″ (au 1 janvier 2020) de latitude nord, la latitude la plus au sud sur laquelle il est possible d'observer le soleil de minuit dans l'hémisphère nord. Find arctic circle (N 40° 7' 23.376", W 111° 39' 15.0552") on a map. The largest such community in Canada is Inuvik in the Northwest Territories, with 3,200 people living there. Mapped position of arctic circle, finland (N 66° 32' 35.7792", E 25° 51' 4.6224"). The Arctic Circle is one of the five major circles of latitude that mark maps of the Earth. How is it that 105 years of global warming ago, when “climate change” wasn’t even a factor, that it got that hot? The Arctic Circle is a circle of latitude that runs 66°33′45.9″ north of the Equator. Actuellement, l'inclinaison diminue d'à peu près 0,468″ par an et le cercle arctique se déplace vers le nord de 14,45 m par an. READ MORE. À cause de la nutation, l'inclinaison oscille de − 1,702″ (environ 53 m à la surface) sur une période de 18,6 ans. An invisible line sweeps across Sweden, Finland, Russia, Alaska, Canada, Greenland, and Iceland – a line that also splits Norway in two. The arctic Circle's Latitude The Arctic Circle one of the who polar circles on the globe and is located at 66°33' North, and referes to where the sun doesn't set mid summer and doesn't rise mid winter. Le cercle arctique est l'un des cinq parallèles principaux indiqués sur les cartes terrestres. The Arctic Ocean lies wholly within the Arctic Circle. What is the Arctic Circle? Any locations falling south of this latitude are said to be in the Antarctic Circle. Il s'agit du parallèle de 66° 33′ 49,7″ (au 1er janvier 2020)[1] de latitude nord, la latitude la plus au sud sur laquelle il est possible d'observer le soleil de minuit dans l'hémisphère nord. [1][2] The region north of this circle is known as the Arctic, and the zone just to the south is called the Northern Temperate Zone. La position du cercle arctique est déterminée par l'inclinaison de l'axe de rotation de la Terre par rapport à l'écliptique. In the United States, Utqiagvik, Alaska is the largest settlement north of the Arctic Circle with about 4,000 inhabitants. An imaginary line encircling the earth, This line is located at latitude 66 33′ North. It marks the southernmost latitude where the sun can stay continuously below or above the horizon for 24 hours – these phenomena are known as the Midnight Sun in the summer and the Polar Night (“Kaamos”) in … The Arctic Circle is one of the two polar circles and the most northerly of the five major circles of latitude as shown on maps of Earth. Antti Rinne, Prime Minister of Finland, H.E. NB: This refers to the true geometric centre which actually appears higher in the sky because of refraction by the atmosphere. The ocean, the circle, and the region take their names from the Greek word arctus,meaning "bear," a reference to the Big and Little Bear constellations that can always be seen overhead on clear nights in the polar region. At the North Pole, the sun rises once each year and sets once each year: there are six months of continuous daylight and six months of continuous night. The Antarctic Circle is one of the five major circles of latitude that mark maps of the Earth.It is the parallel of latitude at 66° 33′ 39″ south of the Equator, crossing mostly the Southern Ocean.. For other uses, see. Au-delà du cercle arctique, le Soleil reste au-dessus de l'horizon pendant au moins vingt-quatre heures consécutives au moins une fois dans l'année (soleil de minuit). Cela n'est cependant vrai qu'au niveau de la mer, l'altitude augmentant ces valeurs. In contrast, the largest North American community north of the Arctic Circle, Sisimiut (Greenland), has approximately 5,000 inhabitants. [6], The Arctic Circle is the southernmost latitude in the Northern Hemisphere at which the centre of the sun can remain continuously above or below the horizon for twenty-four hours; as a result, at least once each year at any location within the Arctic Circle the centre of the sun is visible at local midnight, and at least once the centre is not visible at local noon.[7]. Les plus grandes villes, d'après les données de 2015, sont Mourmansk (305 000 habitants), Norilsk (176 000 habitants) et Tromsø (72 000 habitants), respectivement en Russie et en Norvège. The fluctuation of the Arctic Circle has been found to be at a rate of 2° every 40,000 years. How was that strange number determined? All of these cities are in Russia (mostly the northwest) or Norway. This is also true in the Antarctic region, south of the equivalent Antarctic Circle. The region north of the Arctic Circle … The region north of this circle is known as the Arctic. Latitude measures how far north (or south) something is. The Arctic Circle is an imaginary line of latitude that circles Earth's northernmost end. Arctic Circle Definition: The Arctic Circle is the invisible circle of latitude on the earth's surface at 66°33' north, marking the southern limit of the area where the sun does not rise on the winter solstice or set on the summer solstice - a geographic ring crowning the globe. The Arctic Circle is the southernmost latitude in the Northern Hemisphere at which the centre of the sun can remain continuously above or below the horizon for twenty-four hours; as a result, at least once each year at any location within the Arctic Circle the sun is visible at local midnight, and at least once the centre is not visible at local noon. The position of the Arctic Circle is at the latitude above which the sun does not set on the summer solstice and does not rise on the winter solstice. 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