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Cornwallis Island, Nunavut
Cornwallis Island is one of the Queen Elizabeth Islands, part of the Arctic Archipelago, in the Qikiqtaaluk Region of Nunavut in the Canadian Arctic. It lies to the west of Devon Island, the largest uninhabited island in the world, and at its greatest length is about . At in size, it is the 96th largest island in the world, and Canada's 21st largest island. Cornwallis Island is separated by the Wellington Channel from Devon Island, and by the Parry Channel from Somerset Island to the south. Northwest of Cornwallis Island lies Little Cornwallis Island, the biggest of a group of small islands at the north end of McDougall Sound, which separates Cornwallis Island from nearby Bathurst Island. Cape Airy is located at the island's southwestern extremity. Also on the southwestern coast, Griffith Island lies directly across from the island's only hamlet Resolute (Qausuittuq), separated by the wide Resolute Passage. The first European to visit Cornwallis Island was the British Arctic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inuktitut
Inuktitut (; , syllabics ; from , "person" + , "like", "in the manner of"), also Eastern Canadian Inuktitut, is one of the principal Inuit languages of Canada. It is spoken in all areas north of the tree line, including parts of the provinces of Newfoundland and Labrador, Quebec, to some extent in northeastern Manitoba as well as the Northwest Territories and Nunavut. It is one of the aboriginal languages written with Canadian Aboriginal syllabics. It is recognised as an official language in Nunavut alongside Inuinnaqtun, and both languages are known collectively as ''Inuktut''. Further, it is recognized as one of eight official native tongues in the Northwest Territories. It also has legal recognition in Nunavik—a part of Quebec—thanks in part to the James Bay and Northern Quebec Agreement, and is recognised in the Charter of the French Language as the official language of instruction for Inuit school districts there. It also has some recognition in Nunatsiavut—the Inui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Griffith Island (Nunavut)
Griffith Island lies within the Arctic Archipelago in the Qikiqtaaluk Region of northern Canada's territory of Nunavut. It is one of the mid-channel islands in the western sector of Barrow Strait. Griffith Island lies directly across from the Inuit hamlet Resolute on Cornwallis Island, separated by the wide Resolute Passage. Captain Horatio Austin, on board the ship ''Resolute'' and seeking the lost Sir John Franklin expedition, wintered off Griffith Island in 1851. Explorations that winter by second master, George F. McDougall, included McDougall Sound, the waterway to the north of Griffith Island. Griffith Island is , and in area. Since 1958, the southeast coast of Griffith Island has experienced uncommon change, from discontinuous flying spits to continuous fringing barriers. On April 25, 2021, a Great Slave Helicopters owned helicopter that was surveying polar bear populations crashed on Griffith Island, killing all three on board. References Further reading ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Midnight Sun
The midnight sun is a natural phenomenon that occurs in the summer months in places north of the Arctic Circle or south of the Antarctic Circle, when the Sun remains visible at the local midnight. When the midnight sun is seen in the Arctic, the Sun appears to move from left to right, but in Antarctica the equivalent apparent motion is from right to left. This occurs at latitudes from 65°44' to 90° north or south, and does not stop exactly at the Arctic Circle or the Antarctic Circle, due to refraction. The opposite phenomenon, polar night, occurs in winter, when the Sun stays below the horizon throughout the day. Details Around the summer solstice (approximately 21 June in the Northern Hemisphere and 21 December in the Southern Hemisphere), in certain areas the Sun does not set below the horizon within a 24-hour period. Geography Because there are no permanent human settlements south of the Antarctic Circle, apart from research stations, the countries and territo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precipitation (meteorology)
In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hail. Precipitation occurs when a portion of the atmosphere becomes saturated with water vapor (reaching 100% relative humidity), so that the water condenses and "precipitates" or falls. Thus, fog and mist are not precipitation but colloids, because the water vapor does not condense sufficiently to precipitate. Two processes, possibly acting together, can lead to air becoming saturated: cooling the air or adding water vapor to the air. Precipitation forms as smaller droplets coalesce via collision with other rain drops or ice crystals within a cloud. Short, intense periods of rain in scattered locations are called showers. Moisture that is lifted or otherwise forced to rise over a layer of sub-freezing air at the surface may be condense ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tundra
In physical geography, tundra () is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. The term ''tundra'' comes through Russian (') from the Kildin Sámi word (') meaning "uplands", "treeless mountain tract". There are three regions and associated types of tundra: Arctic tundra, alpine tundra, and Antarctic tundra. Tundra vegetation is composed of dwarf shrubs, sedges, grasses, mosses, and lichens. Scattered trees grow in some tundra regions. The ecotone (or ecological boundary region) between the tundra and the forest is known as the tree line or timberline. The tundra soil is rich in nitrogen and phosphorus. The soil also contains large amounts of biomass and decomposed biomass that has been stored as methane and carbon dioxide in the permafrost, making the tundra soil a carbon sink. As global warming heats the ecosystem and causes soil thawing, the permafrost carbon cycle accelerates and releases much of these soil-contained g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polar Climate
The polar climate regions are characterized by a lack of warm summers but with varying winters. Every month in a polar climate has an average temperature of less than . Regions with polar climate cover more than 20% of the Earth's area. Most of these regions are far from the equator and near the poles, and in this case, winter days are extremely short and summer days are extremely long (could last for the entirety of each season or longer). A polar climate consists of cool summers and very cold winters, which results in treeless tundra, glaciers, or a permanent or semi-permanent layer of ice. It is identified with the letter E in the Köppen climate classification. Subtypes There are two types of polar climate: ET, or tundra climate; and EF, or ice cap climate. A tundra climate is characterized by having at least one month whose average temperature is above , while an ice cap climate has no months averaging above . In a tundra climate, even coniferous trees cannot grow, but o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleozoic
The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ''zōḗ'' (), "life", meaning "ancient life" ). It is the longest of the Phanerozoic eras, lasting from , and is subdivided into six geologic periods (from oldest to youngest): # Cambrian # Ordovician # Silurian # Devonian # Carboniferous # Permian The Paleozoic comes after the Neoproterozoic Era of the Proterozoic Eon and is followed by the Mesozoic Era. The Paleozoic was a time of dramatic geological, climatic, and evolutionary change. The Cambrian witnessed the most rapid and widespread diversification of life in Earth's history, known as the Cambrian explosion, in which most modern phyla first appeared. Arthropods, molluscs, fish, amphibians, reptiles, and synapsids all evolved during the Paleozoic. Life began in the ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic
The Arctic ( or ) is a polar regions of Earth, polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenland), Finland, Iceland, Norway, Russia (Murmansk Oblast, Murmansk, Siberia, Nenets Autonomous Okrug, Nenets Okrug, Novaya Zemlya), Sweden and the United States (Alaska). Land within the Arctic region has seasonally varying snow and sea ice, ice cover, with predominantly treeless permafrost (permanently frozen underground ice) containing tundra. Arctic seas contain seasonal sea ice in many places. The Arctic region is a unique area among Earth's ecosystems. The cultures in the region and the Arctic indigenous peoples have adapted to its cold and extreme conditions. Life in the Arctic includes zooplankton and phytoplankton, fish and marine mammals, birds, land animals, plants and human societies. Arctic land is bordered by the subarctic. De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Resolute Bay Airport
Resolute Bay Airport is located at Resolute, Nunavut, Canada, and is operated by the government of Nunavut. It is one of the northernmost airfields in Canada to receive scheduled passenger airline service (Grise Fiord Airport, which is served from Resolute, is the northernmost airport with airline service in Canada while Alert Airport is the northernmost airport in Canada and the world). Airport The airport has served as a major transportation hub in the Canadian Arctic. Today the airport is an important refuelling stop for aircraft passing through to other places in the high Arctic such as CFS Alert, Eureka and Mould Bay. Unlike some airports in Nunavut, Resolute is equipped with an ILS precision landing system, allowing for large commercial aircraft operations. The VOR/DME is located atop a hill near the airport. The airport is not equipped with radar; however, during 2011's Operation Nanook, a temporary radar installation was used for the duration of that exercise. Prop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Statistics Canada
Statistics Canada (StatCan; french: Statistique Canada), formed in 1971, is the agency of the Government of Canada commissioned with producing statistics to help better understand Canada, its population, resources, economy, society, and culture. It is headquartered in Ottawa.Statistics Canada, 150 Tunney's Pasture Driveway Ottawa, Ontario K1A 0T6; Statistique Canada 150, promenade du pré Tunney Ottawa, Ontario K1A 0T6 The agency is led by the chief statistician of Canada, currently Anil Arora, who assumed the role on September 19, 2016. StatCan is responsible to Parliament through the Minister of Innovation, Science and Industry, currently François-Philippe Champagne. Statistics Canada acts as the national statistical agency for Canada, and Statistics Canada produces statistics for all the provinces as well as the federal government. In addition to conducting about 350 active surveys on virtually all aspects of Canadian life, the '' Statistics Act'' mandates that Statistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grise Fiord
Grise Fiord (; iu, ᐊᐅᔪᐃᑦᑐᖅ, translit=Aujuittuq, lit=place that never thaws, italics=no) is an Inuit hamlet on the southern tip of Ellesmere Island, in the Qikiqtaaluk Region, Nunavut, Canada. It is one of three populated places on the island; despite its low population (144 residents as of the 2021 Canadian census), it is the largest community (and only public community) on Ellesmere Island. The hamlet at Grise Fiord, created by the Canadian Government in 1953 through a relocation of Inuit families from Inukjuak, Quebec, is the northernmost public community in Canada. It is also one of the coldest inhabited places in the world, with an average yearly temperature of . History Creation This community (and that of Resolute) was created by the Canadian government in 1953, partly to assert sovereignty in the High Arctic during the Cold War. Eight Inuit families from Inukjuak, Quebec (on the Ungava Peninsula), were relocated after being promised homes and game to h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypolith
In Arctic and Antarctic ecology, a hypolith is a photosynthetic organism, and an extremophile, that lives underneath rocks in climatically extreme deserts such as Cornwallis Island and Devon Island in the Canadian high Arctic. The community itself is the hypolithon. Hypolithons are protected by their rock from harsh ultraviolet radiation and wind scouring. The rocks can also trap moisture and are generally translucent allowing light to penetrate. Writing in ''Nature'', ecologist Charles S. Cockell of the British Antarctic Survey and Dale Stokes (Scripps Institution of Oceanography) describe how hypoliths reported to date (until 2004) had been found under quartz, which is one of the most common translucent minerals. However, Cockell reported that on Cornwallis Island and Devon Island, 94-95% of a random sample of 850 opaque dolomitic rocks were colonized by hypoliths, and found that the communities were dominated by cyanobacteria. The rocks chosen were visually indistinguis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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