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102-628: The lowest point of the Arctic Ocean lies within the Nansen Basin and has a depth of 4,665 m . The Barents Abyssal Plain is located at the center of the Fram Basin. The Russian-American cooperation Nansen and Amundsen Basin Observational System ( NABOS ) aims "to provide a quantitative observationally based assessment of circulation, water mass transformations, and transformation mechanisms in

204-506: A humid continental (Dfb) microclimate. Summers are typically cool to mild across Labrador and very rainy, and usually last from late June to the end of August. Autumn is generally short, lasting only a couple of weeks and is typically cool and cloudy. Winters are long, cold, and extremely snowy, due to the Icelandic Low . Springtime most years does not arrive until late April, with the last snow fall usually falling during early June. Labrador

306-549: A land claim for portions of Labradorian land in 1977. In 1988, the Labrador Inuit Association, the government of the province of Newfoundland, and the government of Canada began negotiations based on the land claim. An agreement-in-principle was achieved in 2001, and on May 26, 2004, the agreement was ratified by over 75% of eligible voters subject to the land claim. On January 22, 2005, the Inuit of Nunatsiavut signed

408-561: A 1999 resolution of the Assembly of First Nations claimed Labrador as a homeland for the Innu and demanded recognition in any further constitutional negotiations regarding the region. Labrador's Innu became status Indians under the Indian Act in 2002. Natuashish became a federal Indian reserve in 2003. Sheshatshiu became a federal reserve in 2006. The Labrador Inuit Association had filed

510-708: A Portuguese explorer who sailed along the coasts of the Labrador Peninsula in 1498–99. Labrador's name in the Inuttitut / Inuktitut language (spoken in Nunatsiavut ) is Nunatsuak ( ᓄᓇᑦᓱᐊᒃ ), meaning "the big land" (a common English nickname for Labrador ). Labrador has a roughly triangular shape that encompasses the easternmost section of the Canadian Shield , a sweeping geographical region of thin soil and abundant mineral resources. Its western border with Quebec

612-710: A number of continental shelves , including the Canadian Arctic shelf, underlying the Canadian Arctic Archipelago , and the Russian continental shelf , which is sometimes called the "Arctic Shelf" because it is larger. The Russian continental shelf consists of three separate, smaller shelves: the Barents Shelf, Chukchi Sea Shelf and Siberian Shelf . Of these three, the Siberian Shelf is the largest such shelf in

714-748: A project with Memorial University of Newfoundland to better understand their past through the Community-University Research Association (CURA). Following research by CURA, the "Labrador Metis" were understood to be a continuation of the Inuit of southern Labrador. In 2010, the Labrador Metis Association changed its name to reflect their newly discovered heritage, and became the NunatuKavut Community Council . The Southern Inuit of NunatuKavut , who are also seeking self-government, have their land claim before

816-458: A warming of approximately 5–8 °C (9–14 °F), the region reached an average annual temperature of 10–20 °C (50–68 °F). The surface waters of the northernmost Arctic Ocean warmed, seasonally at least, enough to support tropical lifeforms (the dinoflagellates Apectodinium augustum ) requiring surface temperatures of over 22 °C (72 °F). Labrador Labrador ( / ˈ l æ b r ə d ɔːr / LAB -rə-dor )

918-688: Is Molloy Hole in the Fram Strait , at about 5,550 m (18,210 ft). The two major basins are further subdivided by ridges into the Canada Basin (between Beaufort Shelf of North America and the Alpha Ridge ), Makarov Basin (between the Alpha and Lomonosov Ridges), Amundsen Basin (between Lomonosov and Gakkel ridges), and Nansen Basin (between the Gakkel Ridge and the continental shelf that includes

1020-585: Is Nain . Nunatsiavut is an Inuit self-government region in Labrador created on June 23, 2005. The settlement area comprises the majority of Labrador's North Coast, while the land-use area also includes land farther to the interior and in Central Labrador. Nain is the administrative centre. Central Labrador extends from the shores of Lake Melville into the interior. It contains the Churchill River ,

1122-537: Is a geographic and cultural region within the Canadian province of Newfoundland and Labrador . It is the primarily continental portion of the province and constitutes 71% of the province's area but is home to only 6% of its population. It is separated from the island of Newfoundland by the Strait of Belle Isle . It is the largest and northernmost geographical region in the four Atlantic provinces . Labrador occupies most of

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1224-414: Is a section referred to as the sub-surface layer. It is a product of Atlantic water that enters through canyons and is subjected to intense mixing on the Siberian Shelf. As it is entrained, it cools and acts a heat shield for the surface layer on account of weak mixing between layers. However, over the past couple of decades a combination of the warming and the shoaling of Atlantic water are leading to

1326-510: Is a very cloudy place, with sunshine levels staying relatively low during spring and summer due to the amount of rain and clouds, before sharply dropping off during September as winter draws nearer. Labrador is home to a number of flora and fauna species. Most of the Upper Canadian and Lower Hudsonian mammalian species are found in Labrador. Notably the Polar bear ( Ursus maritimus ) reaches

1428-733: Is also home to the Iron Ore Company of Canada , which operates a large iron ore mine in Labrador City . Together with the small community of Wabush , the two towns are known as "Labrador West". From Hamilton Inlet to Cape St. Charles / St. Lewis , NunatuKavut is the territory of the NunatuKavummiut or Central-Southern Labrador Inuit (formerly known as the Labrador Métis ). It includes portions of Central and Western Labrador, but more NunatuKavummiut reside in its South Coast portion: it

1530-749: Is also seen as the northernmost part of the all-encompassing world ocean . The Arctic Ocean includes the North Pole region in the middle of the Northern Hemisphere and extends south to about 60°N . The Arctic Ocean is surrounded by Eurasia and North America, and the borders follow topographic features: the Bering Strait on the Pacific side and the Greenland Scotland Ridge on the Atlantic side. It

1632-564: Is also the location of four 16th-century Spanish galleons. The lighthouse at Point Amour is the second-largest lighthouse in Canada. MV Kamutik , a passenger ferry between the mainland and St. Barbe on the island of Newfoundland , is based in Blanc Sablon, Quebec , near the Labrador border. L'Anse-au-Loup is the largest town on the Labrador Straits. L'Anse-au-Clair is a small town on

1734-612: Is classified as subarctic . Labrador can be divided into four geographical regions: the North Coast, Central Labrador, Western Labrador, and the South Coast. Each of those regions is described below. From Cape Chidley to Hamilton Inlet , the long, thin, northern tip of Labrador holds the Torngat Mountains , named after an Inuit spirit believed to inhabit them. The mountains stretch along the coast from Port Manvers to Cape Chidley ,

1836-471: Is cloudy year-round, with mean cloud cover ranging from 60% in winter to over 80% in summer. The temperature of the surface water of the Arctic Ocean is fairly constant at approximately −1.8 °C (28.8 °F), near the freezing point of seawater . The density of sea water, in contrast to fresh water, increases as it nears the freezing point and thus it tends to sink. It is generally necessary that

1938-509: Is contained in a polar climate characterized by persistent cold and relatively narrow annual temperature ranges. Winters are characterized by the polar night , extreme cold, frequent low-level temperature inversions, and stable weather conditions. Cyclones are only common on the Atlantic side. Summers are characterized by continuous daylight ( midnight sun ), and air temperatures can rise slightly above 0 °C (32 °F). Cyclones are more frequent in summer and may bring rain or snow. It

2040-451: Is mostly covered by sea ice throughout the year and almost completely in winter . The Arctic Ocean's surface temperature and salinity vary seasonally as the ice cover melts and freezes; its salinity is the lowest on average of the five major oceans, due to low evaporation , heavy fresh water inflow from rivers and streams, and limited connection and outflow to surrounding oceanic waters with higher salinities. The summer shrinking of

2142-608: Is of an inferior alignment, and from there to 570 kilometres (350 mi), the provincial border, is an accident-prone section notorious for its poor surface and sharp curves. Quebec in April 2009 announced major upgrades to Route 389 to be carried out. Route 389 and the Trans-Labrador Highway were added to Canada's National Highway System in September 2005. Labrador constitutes a federal electoral district electing one member to

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2244-566: Is peppered with tiny Inuit fishing communities, of which Cartwright is the largest. From Cape Charles to the Quebec/Labrador coastal border, the Straits is known for its Labrador sea grass (as is NunatuKavut) and the multitude of icebergs that pass by the coast via the Labrador Current . Red Bay is known as one of the best examples of a preserved 16th-century Basque whaling station. It

2346-654: Is predominantly cyclonic on the Eurasian side and anticyclonic in the Canadian Basin . Water enters from both the Pacific and Atlantic Oceans and can be divided into three unique water masses. The deepest water mass is called Arctic Bottom Water and begins around 900 m (3,000 ft) depth. It is composed of the densest water in the World Ocean and has two main sources: Arctic shelf water and Greenland Sea Deep Water. Water in

2448-532: Is the drainage divide of the Labrador Peninsula. Lands that drain into the Atlantic Ocean are part of Labrador, while lands that drain into Hudson Bay are part of Quebec. Labrador's extreme northern tip, at 60°22′N, shares a short border with Nunavut on Killiniq Island. Labrador also has a maritime border with Greenland. Northern Labrador's climate is classified as polar , while Southern Labrador's climate

2550-483: Is the highest volumetric inflow to the Arctic Ocean, equalling about 10 times that of the Pacific inflow, and it creates the Arctic Ocean Boundary Current. It flows slowly, at about 0.02 m/s. Atlantic Water has the same salinity as Arctic Bottom Water but is much warmer (up to 3 °C [37 °F]). In fact, this water mass is actually warmer than the surface water and remains submerged only due to

2652-486: Is the smallest and shallowest of the world's five oceanic divisions . It spans an area of approximately 14,060,000 km (5,430,000 sq mi) and is the coldest of the world's oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, although some oceanographers call it the Arctic Mediterranean Sea . It has also been described as an estuary of the Atlantic Ocean . It

2754-652: The Skrælings . In 1499 and 1500, the Portuguese explorers João Fernandes Lavrador and Pero de Barcelos reached what was probably now Labrador, which is believed to be the origin of its name. Maggiolo's World Map , 1511, shows a solid Eurasian continent running from Scandinavia around the North Pole, including Asia's arctic coast, to Newfoundland-Labrador and Greenland. On the extreme northeast promontory of North America, Maggiolo place-names include Terra de los Ingres (Land of

2856-647: The British Empire , the matter was referred to the Judicial Committee of the Privy Council (in London). Their decision set the Labrador boundary mostly along the coastal watershed, with part being defined by the 52nd parallel north . One of Newfoundland's conditions for joining Confederation in 1949 was that this boundary be entrenched in the Canadian constitution. While this border has not been formally accepted by

2958-555: The Cold War . In October 1943, a German U-boat crew installed an automated weather station on the northern tip of Labrador near Cape Chidley, code-named Weather Station Kurt ; the installation of the equipment was the only-known armed German military operation on the North American mainland during the war. The station broadcast weather observations to the German navy for only a few days, but

3060-590: The Cretaceous period, the Canadian Basin opened, and tectonic activity due to the assembly of Alaska caused hydrocarbons to migrate toward what is now Prudhoe Bay. At the same time, sediments shed off the rising Canadian Rockies built out the large Mackenzie Delta. The rifting apart of the supercontinent Pangea , beginning in the Triassic period, opened the early Atlantic Ocean. Rifting then extended northward, opening

3162-536: The Eurasian Basin , which is 4,000–4,500 m (13,100–14,800 ft) deep, and the Amerasian Basin (sometimes called the North American or Hyperborean Basin), which is about 4,000 m (13,000 ft) deep. The bathymetry of the ocean bottom is marked by fault block ridges, abyssal plains , ocean deeps , and basins. The average depth of the Arctic Ocean is 1,038 m (3,406 ft). The deepest point

Nansen Basin - Misplaced Pages Continue

3264-629: The Franz Josef Land ). The crystalline basement rocks of mountains around the Arctic Ocean were recrystallized or formed during the Ellesmerian orogeny, the regional phase of the larger Caledonian orogeny in the Paleozoic Era. Regional subsidence in the Jurassic and Triassic periods led to significant sediment deposition, creating many of the reservoirs for current day oil and gas deposits. During

3366-649: The French and Indian War . By the Treaty of Paris (1763) , which ended the war, New France (including Labrador, though excluding the islands of Saint Pierre and Miquelon southwest of Newfoundland) was transferred to the British, who administered the northern portion of it as the Province of Quebec until splitting it in two in 1791, with Labrador located in Lower Canada . However, in 1809,

3468-548: The Grenfell Mission (see Wilfred Grenfell ). Throughout the 20th century, coastal freighters and ferries operated initially by the Newfoundland Railway and later Canadian National Railway / CN Marine / Marine Atlantic became a critical lifeline for communities on the coast, which for the majority of that century did not have any road connection with the rest of North America. Labrador was part of New France until

3570-578: The House of Commons of Canada . Due to its size, distinct nature, and large Aboriginal population, Labrador has one seat despite having the smallest population of any electoral district in Canada. Formerly, Labrador was part of a riding that included part of the Island of Newfoundland. Labrador is divided into four provincial electoral districts in the Newfoundland and Labrador House of Assembly . In 1809, Labrador

3672-569: The Independence I and Independence II cultures of northeastern Canada and Greenland ( c.  2400–1800 BC and c.  800–1 BC ); and the Groswater of Labrador and Nunavik . The Dorset culture spread across Arctic North America between 500 BC and AD 1500. The Dorset were the last major Paleo-Eskimo culture in the Arctic before the migration east from present-day Alaska of

3774-655: The Northwest Passage , to " Cathay " ( China ) caused water to win out, and by 1723 mapmakers such as Johann Homann featured an extensive "Oceanus Septentrionalis" at the northern edge of their charts. The few expeditions to penetrate much beyond the Arctic Circle in that era added only small islands, such as Novaya Zemlya (11th century) and Spitzbergen (1596), though, since these were often surrounded by pack-ice , their northern limits were not so clear. The makers of navigational charts , more conservative than some of

3876-580: The Pinetree Line , Mid-Canada Line and DEW Line systems. Today, the remaining stations are automated as part of the North Warning System ; however, the military settlements during the early part of the Cold War surrounding these stations have largely continued as local Innu and Inuit populations have clustered near their port and airfield facilities. During the first half of the 20th century, some of

3978-424: The Thule people , ancestors of the modern Inuit . The Thule Tradition lasted from about 200 BC to AD 1600, arising around the Bering Strait and later encompassing almost the entire Arctic region of North America. The Thule people were the ancestors of the Inuit, who now live in Alaska, Northwest Territories , Nunavut , Nunavik (northern Quebec), Labrador and Greenland. For much of European history ,

4080-413: The Torngat Mountains National Park in the northern area of the land claim. The agreement was ratified by the Labrador Inuit, the General Assembly of Newfoundland and Labrador , and the Parliament of Canada , where it received Royal Assent on June 23, 2005, whereafter elections would be held for the Nunatsiavut Assembly and self-government would begin. In the late 1970s, the Labrador Metis Association

4182-506: The Trans-Labrador Highway was built in stages to connect various inland communities with the North American highway network at Mont Wright, Quebec (which in turn is connected by a highway running north from Baie-Comeau , Quebec). A southern extension of this highway has opened in stages during the early 2000s and is resulting in significant changes to the coastal ferry system in the Strait of Belle Isle and southeastern Labrador. These "highways" are so called only because of their importance to

Nansen Basin - Misplaced Pages Continue

4284-463: The 1949 terms of union would be amended to remove ferry service from Nova Scotia to Port aux Basques across the Cabot Strait . Although a highway link has, as of December 2009, been completed across Labrador, this route is somewhat longer than a proposed Quebec North Shore highway that presently does not exist. Part of the "highway", Route 389 , starting approximately 212 kilometres (132 mi) from Baie-Comeau to 482 kilometres (300 mi),

4386-412: The Arctic Ocean as mafic oceanic crust material erupted out of a branch of Mid-Atlantic Ridge. The Amerasia Basin may have opened first, with the Chukchi Borderland moved along to the northeast by transform faults. Additional spreading helped to create the "triple-junction" of the Alpha-Mendeleev Ridge in the Late Cretaceous epoch . Throughout the Cenozoic Era, the subduction of the Pacific plate,

4488-427: The Arctic Ocean has a uniquely complex system of water flow. It resembles some hydrological features of the Mediterranean Sea , referring to its deep waters having only limited communication through the Fram Strait with the Atlantic Basin , "where the circulation is dominated by thermohaline forcing". The Arctic Ocean has a total volume of 18.07 × 10 km , equal to about 1.3% of the World Ocean. Mean surface circulation

4590-403: The Arctic Ocean. Much of the Arctic ice pack is also covered in snow for about 10 months of the year. The maximum snow cover is in March or April—about 20–50 cm (7.9–19.7 in) over the frozen ocean. The climate of the Arctic region has varied significantly during the Earth's history. During the Paleocene–Eocene Thermal Maximum 55 million years ago, when the global climate underwent

4692-402: The Arctic Ocean: Different authorities put various marginal seas in either the Arctic Ocean or the Atlantic Ocean, including: Hudson Bay , Baffin Bay , the Norwegian Sea , and Hudson Strait . The main islands and archipelagos in the Arctic Ocean are, from the prime meridian west: There are several ports and harbours on the Arctic Ocean. The ocean's Arctic shelf comprises

4794-472: The British Imperial government detached Labrador from Lower Canada for transfer to the separate, self-governing Newfoundland Colony . As part of Newfoundland since 1809, Labrador was still being disputed by Quebec until the British Privy Council resolved their border in 1927 . In 1949, Newfoundland entered into confederation , becoming part of Canada (see above articles for full information). Labrador played strategic roles during both World War II and

4896-408: The Canadian Archipelago. As noted, the process of ice formation and movement is a key driver in Arctic Ocean circulation and the formation of water masses. With this dependence, the Arctic Ocean experiences variations due to seasonal changes in sea ice cover. Sea ice movement is the result of wind forcing, which is related to a number of meteorological conditions that the Arctic experiences throughout

4998-399: The English), and Terra de Lavorador de rey de portugall (Land of Lavrador of the King of Portugal). Further south are the phrases Terra de corte real e de rey de portugall (Land of the Royal Court and of the King of Portugal) and Terra de pescaria (Land for Fishing). In the 1532 Wolfenbüttel map, believed to be the work of Diogo Ribeiro , along the coast of Greenland, the following legend

5100-444: The Eurasian and Canadian Basins of the Arctic Ocean". 86°N 70°E  /  86°N 70°E  / 86; 70 This article about a specific oceanic location or ocean current is a stub . You can help Misplaced Pages by expanding it . This Arctic -related article is a stub . You can help Misplaced Pages by expanding it . Arctic Ocean Main five oceans division: Further subdivision: The Arctic Ocean

5202-408: The European region of the Arctic Ocean was heavily contested : the Allied commitment to resupply the Soviet Union via its northern ports was opposed by German naval and air forces. Since 1954 commercial airlines have flown over the Arctic Ocean (see Polar route ). The Arctic Ocean occupies a roughly circular basin and covers an area of about 14,056,000 km (5,427,000 sq mi), almost

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5304-410: The Fram Strait is what allows for both inflow and outflow on the Atlantic side of the Arctic Ocean. Because of this, it is influenced by the Coriolis force , which concentrates outflow to the East Greenland Current on the western side and inflow to the Norwegian Current on the eastern side. Pacific water also exits along the west coast of Greenland and the Hudson Strait (1–2 Sv), providing nutrients to

5406-403: The Government of Canada. The Government of Newfoundland and Labrador refuses to recognise or negotiate with the Inuit of NunatuKavut until their claim has been accepted by the Government of Canada. The Labrador region, with its 26,655 population, is lower than any of the Northern Canada territories, Yukon , Northwest Territories and Nunavut . Newfoundland Island contains the majority of

5508-593: The Labrador Inuit Lands Claims Agreement with the federal and provincial governments covering 72,520 km (28,000 sq mi) of land, including the entire northern salient of Labrador north of Nain as well as a portion of the Atlantic coast south of there. The agreement also includes 44,030 km (17,000 sq mi) of sea rights. Although the Inuit will not own the whole area, they were granted special rights related to traditional land use, and they will own 15,800 km (6,100 sq mi) designated Labrador Inuit Lands. The agreement also establishes

5610-455: The Labrador side of the border. Most of Labrador (from Cartwright north and west) uses Atlantic Time (UTC−4 in winter, UTC−3 in summer). The south eastern tip nearest Newfoundland uses Newfoundland Time (UTC−3:30 in winter, UTC−2:30 in summer) to stay co-ordinated with the more populous part of the province. Most of Labrador has a subarctic climate ( Dfc ), but northern Labrador has a tundra climate (ET) and Happy Valley - Goose Bay has

5712-419: The Lomonosov Ridge, which appears to be continental crust separated from the Barents-Kara Shelf in the Paleocene and then starved of sediment. It may contain up to 10 billion barrels of oil. The Gakkel Ridge rift is also poorly understand and may extend into the Laptev Sea. In large parts of the Arctic Ocean, the top layer (about 50 m [160 ft]) is of lower salinity and lower temperature than

5814-444: The North American polar region goes back at least 17,000–50,000 years, during the Wisconsin glaciation . At this time, falling sea levels allowed people to move across the Bering land bridge that joined Siberia to northwestern North America (Alaska), leading to the Settlement of the Americas . Early Paleo-Eskimo groups included the Pre-Dorset ( c.  3200–850 BC ); the Saqqaq culture of Greenland (2500–800 BC);

5916-423: The Province of Newfoundland. Muskrat Falls is 45 km (30 miles) west of Happy Valley-Goose Bay on the Grand River (Newfoundland name: Churchill River). A transmission line began construction in October 2014 and was completed in 2016 that delivers power down to the southern tip of Labrador and underwater across the Strait of Belle Isle to the Province of Newfoundland in 2018. From the 1970s to early 2000s,

6018-754: The Quebec government, the Henri Dorion Commission ( Commission d'étude sur l'intégrité du territoire du Québec ) concluded in the early 1970s that Quebec no longer has a legal claim to Labrador. In 2001, Parti Québécois cabinet ministers Jacques Brassard and Joseph Facal reasserted that Quebec has never recognized the 1927 border: Les ministres rappellent qu'aucun gouvernement québécois n'a reconnu formellement le tracé de la frontière entre le Québec et Terre-Neuve dans la péninsule du Labrador selon l'avis rendu par le comité judiciaire du Conseil privé de Londres en 1927. Pour le Québec, cette frontière n'a donc jamais été définitivement arrêtée. [The ministers reiterate that no Quebec government has ever formally recognised

6120-438: The Second World War and the Cold War, the base was also home to American, British, and later German, Dutch, and Italian detachments. Today, Serco, the company contracted to operate CFB Goose Bay is one of the largest employers for the community of Happy Valley-Goose Bay . Additionally, both the Royal Canadian Air Force and United States Air Force built and operated a number of radar stations along coastal Labrador as part of

6222-421: The Smallwood Reservoir after Joey Smallwood , the first premier of Newfoundland. The flooding of the reservoir destroyed large areas of habitat for the threatened Woodland Caribou. A hydroelectric generating station was built in Labrador as well as a transmission line to the neighbouring province of Quebec. Construction of a large hydroelectric dam project at Muskrat Falls began in 2012 by Nalcor Energy and

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6324-432: The area's population comprises people from all groups and regions of Labrador. Central Labrador is also home to Happy Valley-Goose Bay . Once a refuelling point for plane convoys to Europe during World War II , CFB Goose Bay is now operated as a NATO tactical flight training site. It was an alternate landing zone for the United States' Space Shuttle . Other major communities in the area are North West River and

6426-608: The average winter value of 15,600,000 km (6,023,200 sq mi). The seasonal variations are about 7,000,000 km (2,702,700 sq mi), with the maximum in April and minimum in September. The sea ice is affected by wind and ocean currents, which can move and rotate very large areas of ice. Zones of compression also arise, where the ice piles up to form pack ice. Icebergs occasionally break away from northern Ellesmere Island , and icebergs are formed from glaciers in western Greenland and extreme northeastern Canada. Icebergs are not sea ice but may become embedded in

6528-547: The bay, which they called Butus and is now named Red Bay after the red terracotta roof tiles they brought with them. A whaling ship, the San Juan , sank there in 1565 and was raised in 1978. The Moravian Brethren of Herrnhut , Saxony , first came to the Labrador Coast in 1760 to minister to the migratory Inuit tribes there. They founded Nain, Okak, Hebron, Hopedale and Makkovik. Quite poor, both European and First Nations settlements along coastal Labrador came to benefit from cargo and relief vessels that were operated as part of

6630-441: The collision of India with Eurasia, and the continued opening of the North Atlantic created new hydrocarbon traps. The seafloor began spreading from the Gakkel Ridge in the Paleocene Epoch and the Eocene Epoch, causing the Lomonosov Ridge to move farther from land and subside. Because of sea ice and remote conditions, the geology of the Arctic Ocean is still poorly explored. The Arctic Coring Expedition drilling shed some light on

6732-448: The drawing of the border between Quebec and Newfoundland in the Labrador peninsula according to the opinion rendered by the London Judicial Committee of the Privy Council in 1927. For Quebec, this border has thus never been definitively defined.] A Royal Commission in 2002 determined that there is some public pressure from Labradorians to break from Newfoundland and become a separate province or territory. After decades of negotiation with

6834-418: The eastern part of the Labrador Peninsula . It is bordered to the west and south by the province of Quebec . Labrador also shares a small land border with the territory of Nunavut on Killiniq Island . The indigenous peoples of Labrador include the Northern Inuit of Nunatsiavut , the Southern Métis of NunatuKavut , and the Innu of Nitassinan . Labrador is named after João Fernandes Lavrador ,

6936-437: The explorers who travelled closer and closer to the pole reported, the polar ice cap is quite thick and persists year-round. Fridtjof Nansen was the first to make a nautical crossing of the Arctic Ocean, in the Fram Expedition from 1893 to 1896. The first surface crossing of the ocean was led by Wally Herbert in 1969, in a dog sled expedition from Alaska to Svalbard , with air support. The first nautical transit of

7038-440: The formation of Atlantic Deep Water. The overturning of this water plays a key role in global circulation and the moderation of climate. In the depth range of 150–900 m (490–2,950 ft) is a water mass referred to as Atlantic Water. Inflow from the North Atlantic Current enters through the Fram Strait, cooling and sinking to form the deepest layer of the halocline, where it circles the Arctic Basin counter-clockwise. This

7140-456: The ice has been quoted at 50%. The US National Snow and Ice Data Center (NSIDC) uses satellite data to provide a daily record of Arctic sea ice cover and the rate of melting compared to an average period and specific past years, showing a continuous decline in sea ice extent. In September 2012, the Arctic ice extent reached a new record minimum. Compared to the average extent (1979–2000), the sea ice had diminished by 49%. Human habitation in

7242-497: The increasing influence of Atlantic water heat in melting sea ice in the eastern Arctic. The most recent estimates, for 2016–2018, indicate the oceanic heat flux to the surface has now overtaken the atmospheric flux in the eastern Eurasian Basin. Over the same period the weakening halocline stratification has coincided with increasing upper ocean currents thought to be associated with declining sea ice, indicate increasing mixing in this region. In contrast direct measurements of mixing in

7344-453: The land of the labourer. European settlement was largely concentrated in coastal communities, particularly those south of St. Lewis and Cape Charles, and are among Canada's oldest European settlements. In 1542, Basque mariners came ashore at a natural harbour on the northeast coast of the Strait of Belle Isle. They gave this "new land" its Latin name Terranova . A whaling station was set up around

7446-601: The large Innu reserve known as Sheshatshiu . The highlands above the Churchill Falls were once an ancient hunting ground for the Innu First Nations and settled trappers of Labrador. After the construction of the hydroelectric dam at Churchill Falls in 1970, the Smallwood Reservoir has flooded much of the old hunting land—submerging several grave sites and trapping cabins in the process. Western Labrador

7548-399: The largest iron ore deposits in the world were discovered in the western part of Labrador and adjacent areas of Quebec. Deposits at Mont Wright , Schefferville , Labrador City, and Wabush drove industrial development and human settlement in the area during the second half of the 20th century. The present community of Labrador West is entirely a result of the iron ore mining activities in

7650-451: The largest river in Labrador and one of the largest in Canada. The hydroelectric dam at Churchill Falls is the second-largest underground power station in the world. Most of the supply is bought by Hydro-Québec under a long-term contract. The Lower Churchill Project will develop the remaining potential of the river and supply it to provincial consumers. Known as "the heart of the Big Land",

7752-475: The more fanciful cartographers, tended to leave the region blank, with only fragments of known coastline sketched in. This lack of knowledge of what lay north of the shifting barrier of ice gave rise to a number of conjectures. In England and other European nations, the myth of an " Open Polar Sea " was persistent. John Barrow , longtime Second Secretary of the British Admiralty , promoted exploration of

7854-494: The north polar regions remained largely unexplored and their geography conjectural. Pytheas of Massilia recorded an account of a journey northward in 325 BC, to a land he called " Eschate Thule ", where the Sun only set for three hours each day and the water was replaced by a congealed substance "on which one can neither walk nor sail". He was probably describing loose sea ice known today as " growlers " or "bergy bits"; his "Thule"

7956-400: The north pole was made in 1958 by the submarine USS Nautilus , and the first surface nautical transit occurred in 1977 by the icebreaker NS Arktika . Since 1937, Soviet and Russian manned drifting ice stations have extensively monitored the Arctic Ocean. Scientific settlements were established on the drift ice and carried thousands of kilometres by ice floes . In World War II ,

8058-409: The northernmost point of Labrador. The Torngat Mountain range is also home to Mount Caubvick , the highest point in the province. This area is predominantly Inuit, with the exception of a small Innu community, Natuashish . The North Coast is the most isolated region of Labrador, with snowmobiles , boats, and planes being the only modern modes of transportation. The largest community in this region

8160-568: The pack ice. Icebergs pose a hazard to ships, of which the Titanic is one of the most famous. The ocean is virtually icelocked from October to June, and the superstructure of ships are subject to icing from October to May. Before the advent of modern icebreakers, ships sailing the Arctic Ocean risked being trapped or crushed by sea ice (although the Baychimo drifted through the Arctic Ocean untended for decades despite these hazards). The Arctic Ocean

8262-541: The provincial and federal governments, the Nunatsiavut region of northern and northeastern Labrador was created in 2005 as an autonomous region with its own elected Assembly and executive drawn from members of the region's Assembly. Some of the Innu nation would have the entirety of Labrador become a homeland for them, much as Nunavut and Nunatsiavut is for the Inuit , as a good portion of Nitassinan falls within Labrador's borders;

8364-573: The region from 1818 to 1845 in search of this. In the United States in the 1850s and 1860s, the explorers Elisha Kane and Isaac Israel Hayes both claimed to have seen part of this elusive body of water. Even quite late in the century, the eminent authority Matthew Fontaine Maury included a description of the Open Polar Sea in his textbook The Physical Geography of the Sea (1883). Nevertheless, as all

8466-536: The region. The Iron Ore Company of Canada operates the Quebec North Shore and Labrador Railway to transport ore concentrate 578 km (359 mi) south to the port of Sept-Îles, Quebec , for shipment to steel mills in North America and elsewhere. During the 1960s, the Churchill River (Labrador name: Grand River) was diverted at Churchill Falls , resulting in the flooding of an enormous area – today named

8568-456: The region; they would be better described as roads, and were not completely paved until July 2022. A study on a fixed link to Newfoundland, in 2004, recommended that a tunnel under the Strait of Belle Isle , being a single railway that would carry cars, buses and trucks, was technologically the best option for such a link. However, the study also concluded that a fixed link was not economically viable. Conceivably, if built with federal aid,

8670-520: The rest. It remains relatively stable because the salinity effect on density is bigger than the temperature effect. It is fed by the freshwater input of the big Siberian and Canadian rivers ( Ob , Yenisei , Lena , Mackenzie ), the water of which quasi floats on the saltier, denser, deeper ocean water. Between this lower salinity layer and the bulk of the ocean lies the so-called halocline , in which both salinity and temperature rise with increasing depth. Because of its relative isolation from other oceans,

8772-643: The role of salinity in density. When water reaches the basin, it is pushed by strong winds into a large circular current called the Beaufort Gyre . Water in the Beaufort Gyre is far less saline than that of the Chukchi Sea due to inflow from large Canadian and Siberian rivers. The final defined water mass in the Arctic Ocean is called Arctic Surface Water and is found in the depth range of 150–200 m (490–660 ft). The most important feature of this water mass

8874-462: The sea that sink over the continental shelf into the western Arctic Ocean and create a halocline. This water is met by Greenland Sea Deep Water, which forms during the passage of winter storms. As temperatures cool dramatically in the winter, ice forms, and intense vertical convection allows the water to become dense enough to sink below the warm saline water below. Arctic Bottom Water is critically important because of its outflow, which contributes to

8976-461: The shelf region that begins as inflow from the Pacific passes through the narrow Bering Strait at an average rate of 0.8 Sverdrups and reaches the Chukchi Sea . During the winter, cold Alaskan winds blow over the Chukchi Sea, freezing the surface water and pushing this newly formed ice out to the Pacific. The speed of the ice drift is roughly 1–4 cm/s. This process leaves dense, salty waters in

9078-411: The size of Antarctica . The coastline is 45,390 km (28,200 mi) long. It is the only ocean smaller than Russia , which has a land area of 16,377,742 km (6,323,482 sq mi). The Arctic Ocean is surrounded by the land masses of Eurasia (Russia and Norway), North America ( Canada and the U.S. state of Alaska), Greenland, and Iceland . Note: Some parts of the areas listed in

9180-547: The southeast of Labrador on its seasonal movements. Early settlement in Labrador was tied to the sea as demonstrated by the Innu (formerly called Montagnais) and Inuit, although these peoples also made significant forays throughout the interior. It is believed that the Norsemen were the first Europeans to sight Labrador around 1000 AD. The area was known as Markland in Greenlandic Norse and its inhabitants were known as

9282-470: The summer months. There is also evidence that the drift is associated with the phase of the Arctic Oscillation and Atlantic Multidecadal Oscillation . Much of the Arctic Ocean is covered by sea ice that varies in extent and thickness seasonally. The mean extent of the Arctic sea ice has been continuously decreasing in the last decades, declining at a rate of currently 12.85% per decade since 1980 from

9384-536: The summer, the SLP contrast is smaller, producing weaker winds. A final example of seasonal pressure system movement is the low pressure system that exists over the Nordic and Barents Seas. It is an extension of the Icelandic Low , which creates cyclonic ocean circulation in this area. The low shifts to centre over the North Pole in the summer. These variations in the Arctic all contribute to ice drift reaching its weakest point during

9486-668: The table are located in the Atlantic Ocean . Other consists of Gulfs , Straits , Channels and other parts without specific names and excludes Exclusive Economic Zones . The Arctic Ocean is connected to the Pacific Ocean by the Bering Strait and to the Atlantic Ocean through the Greenland Sea and Labrador Sea . (The Iceland Sea is sometimes considered part of the Greenland Sea, and sometimes separate.) The largest seas in

9588-470: The upper 100–150 m (330–490 ft) of ocean water cools to the freezing point for sea ice to form. In the winter, the relatively warm ocean water exerts a moderating influence, even when covered by ice. This is one reason why the Arctic does not experience the extreme temperatures seen on the Antarctic continent . There is considerable seasonal variation in how much pack ice of the Arctic ice pack covers

9690-538: The western Arctic indicate the Atlantic water heat remains isolated at intermediate depths even under the 'perfect storm' conditions of the Great Arctic Cyclone of 2012 . Waters originating in the Pacific and Atlantic both exit through the Fram Strait between Greenland and Svalbard Island, which is about 2,700 m (8,900 ft) deep and 350 km (220 mi) wide. This outflow is about 9 Sv. The width of

9792-613: The world; it holds large oil and gas reserves. The Chukchi shelf forms the border between Russian and the United States as stated in the USSR–USA Maritime Boundary Agreement . The whole area is subject to international territorial claims . The Chukchi Plateau extends from the Chukchi Sea Shelf. An underwater ridge , the Lomonosov Ridge , divides the deep sea North Polar Basin into two oceanic basins :

9894-540: The year. For example, the Beaufort High—an extension of the Siberian High system—is a pressure system that drives the anticyclonic motion of the Beaufort Gyre. During the summer, this area of high pressure is pushed out closer to its Siberian and Canadian sides. In addition, there is a sea level pressure (SLP) ridge over Greenland that drives strong northerly winds through the Fram Strait, facilitating ice export. In

9996-567: Was added: As he who first sighted it was a farmer from the Azores Islands, this name remains attached to that country. This is believed to be João Fernandes. For the first seven decades or so of the sixteenth century, the name Labrador was sometimes also applied to what is now known as Greenland. Labrador ("lavrador" in Portuguese) means husbandman or farmer of a tract of land (from "labor" in Latin) –

10098-418: Was created by the inhabitants of Labrador's southern coast to gain recognition as a distinct ethnocultural group, as at the time despite a pre-existing treaty protected under the constitution, the "Inuit-Metis" were considered to be merely the descendants of Inuit who had joined Western society. Little was known about the history of the "Inuit-Metis" of the time. In 2006, the Labrador Metis Association initiated

10200-633: Was not discovered until 1977 when a historian, working with the Canadian Coast Guard , identified its location and mounted an expedition to recover it. The station is now exhibited in the Canadian War Museum . The Canadian government built a major air force base at Goose Bay , at the head of Lake Melville during the Second World War, a site selected because of its topography, access to the sea, defensible location, and minimal fog. During

10302-645: Was probably Norway , though the Faroe Islands or Shetland have also been suggested. Early cartographers were unsure whether to draw the region around the North Pole as land (as in Johannes Ruysch 's map of 1507, or Gerardus Mercator 's map of 1595) or water (as with Martin Waldseemüller 's world map of 1507). The fervent desire of European merchants for a northern passage, the Northern Sea Route or

10404-480: Was transferred from Lower Canada to the Newfoundland Colony, but the inland boundary of Labrador had never been precisely stated. Newfoundland argued it extended to the height of land, while Canada, stressing the historical use of the term "Coasts of Labrador", argued the boundary was 1 statute mile (1.6 km) inland from the high-tide mark. As Canada and Newfoundland were separate Dominions , but both within

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