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Qeqertaq Avannarleq
Qeqertaq Avannarleq () is an unofficial name of what was thought to be a previously uncharted island in the Arctic Ocean, discovered in August 2021. It is within the Arctic Circle, off of the northern tip of Greenland, and consists primarily of seabed mud and moraine, an accumulation of unconsolidated debris left behind by glaciers. One theory as to its creation was that it was formed relatively recently, during a violent storm. In September 2022, Danish researcher René Forsberg, head of geodynamics at the National Space Institute in Denmark, announced that further research had shown Qeqertaq Avannarleq "unequivocally" is not an island, but the top of a grounded iceberg, covered by a layer of soil, pebbles and mud, likely deposited by from glaciers in the area. This gravel bank has been among the candidates to be recognized as the northernmost point of land. An undisputed candidate, Kaffeklubben Island is classified as permanent, being discovered in 1900 A.D., and being 750 metr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Island
An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. Sedimentary islands in the Ganges delta are called chars. A grouping of geographically or geologically related islands, such as the Philippines, is referred to as an archipelago. There are two main types of islands in the sea: continental and oceanic. There are also artificial islands, which are man-made. Etymology The word ''island'' derives from Middle English ''iland'', from Old English ''igland'' (from ''ig'' or ''ieg'', similarly meaning 'island' when used independently, and -land carrying its contemporary meaning; cf. Dutch ''eiland'' ("island"), German ''Eiland'' ("small island")). However, the spelling of the word ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic Ocean
The Arctic Ocean is the smallest and shallowest of the world's five major oceans. It spans an area of approximately and is known as the coldest of all the oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, although some oceanographers call it the Arctic Mediterranean Sea. It has been described approximately as an estuary of the Atlantic Ocean. It 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 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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic Circle
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. Its southern equivalent is the Antarctic Circle. The Arctic Circle marks the southernmost latitude at which, on the December solstice, the shortest day of the year in the northern hemisphere, the sun will not rise all day, and on the June solstice, the longest day of the year in the northern hemisphere, the sun will not set. These phenomena are referred to as polar night and midnight sun respectively, and the further north one progresses, the more pronounced these effects become. For example, in the Russian port city of Murmansk, three degrees above the Arctic Circle, the sun does not rise for 40 successive days in midwinter. The position of the Arctic Circle is not fixed and currently runs north of the Equator. Its latitude depends on the Earth's axial tilt, which fluctuates within a margin of more than 2° over a 41,000-year period, o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenland
Greenland ( kl, Kalaallit Nunaat, ; da, Grønland, ) is an island country in North America that is part of the Kingdom of Denmark. It is located between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago. Greenland is the world's largest island. It is one of three constituent countries that form the Kingdom of Denmark, along with Denmark and the Faroe Islands; the citizens of these countries are all citizens of Denmark and the European Union. Greenland's capital is Nuuk. Though a part of the continent of North America, Greenland has been politically and culturally associated with Europe (specifically Norway and Denmark, the colonial powers) for more than a millennium, beginning in 986.The Fate of Greenland's Vikings , by Dale Mackenzie Brown, ''Archaeological Institute of America'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geodynamics
Geodynamics is a subfield of geophysics dealing with dynamics of the Earth. It applies physics, chemistry and mathematics to the understanding of how mantle convection leads to plate tectonics and geologic phenomena such as seafloor spreading, mountain building, volcanoes, earthquakes, faulting. It also attempts to probe the internal activity by measuring magnetic fields, gravity, and seismic waves, as well as the mineralogy of rocks and their isotopic composition. Methods of geodynamics are also applied to exploration of other planets. Overview Geodynamics is generally concerned with processes that move materials throughout the Earth. In the Earth's interior, movement happens when rocks melt or deform and flow in response to a stress field.Turcotte, D. L. and G. Schubert (2014). "Geodynamics." This deformation may be brittle, elastic, or plastic, depending on the magnitude of the stress and the material's physical properties, especially the stress relaxation time scale. Roc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DTU Space
The National Space Institute at the Technical University of Denmark, also known as DTU Space ( da, Institut for Rumforskning og Rumteknologi), is a Danish sector research institute and a part of the Technical University of Denmark. It has a staff of 169, including researchers, engineers, and technicians. The institute conducts research in astrophysics, Solar System physics, geodesy, and space technology. To conduct the research, the Institute collaborates with the Niels Bohr Institute for Astronomy, Geophysics and Physics. It came about as a result of combining the Danish Space Research Institute with the geodesy part of the National Survey and Cadastre of Denmark on 1 January 2005 to form the Danish National Space Center (DNSC). In 2007, the DNSC merged with the Technical University of Denmark, and in 2008 changed its name to DTU Space. The institute currently leads Swarm, a project to investigate the properties of the earth's magnetic field. See also * List of government spa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northernmost Point Of Land
The northernmost point of land on Earth is a contentious issue due to variation of definition. How permanent some of the contenders are makes hard determination difficult, but sets an important threshold. Problematic issues include ice sheets, water movements and inundation, storm activity that may build, shift, or destroy banks of moraine material, and observational difficulties due to remoteness. The following table sets out the main contenders for this title. Currently, Kaffeklubben Island is the northernmost, undisputed candidate among the land areas considered permanent that remain above water. See also *Extremes on Earth This article lists extreme locations on Earth that hold geographical records or are otherwise known for their geophysical or meteorological superlatives. All of these locations are Earth-wide extremes; extremes of individual continents or coun ... References {{Reflist Extreme points of Earth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaffeklubben Island
Kaffeklubben Island or Coffee Club Island ( da, Kaffeklubben Ø; kl, Inuit Qeqertaat) is an uninhabited island lying off the northern tip of Greenland. It contains the northernmost undisputed point of land on Earth. Discovery The first recorded sighting of Kaffeklubben Island was made by American explorer Robert Peary in 1900; however, the island was not visited until 1921. When the Danish explorer Lauge Koch set foot on the island, it received its name after the coffee club in the University of Copenhagen Geological Museum. In 1969, a Canadian team calculated that its northernmost tip is farther north than Cape Morris Jesup, the northernmost point of mainland Greenland, thus claiming its record as the most northerly point on land. Since its record as the northernmost point of land was established, several gravel banks have been discovered in the sea to the north of the island, such as Oodaaq, 83-42, and ATOW1996; however, there is debate as to whether such gravel banks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Morris Jesup
Cape Morris Jesup ( da, Kap Morris Jesup) is a headland in Peary Land, Greenland. Geography Cape Morris Jesup is the northernmost point of mainland Greenland. It is from the North Pole#Geographic North Pole, geographic North Pole. It is located in Johannes V. Jensen Land, about east of the mouth of Sands Fjord and west of Constable Bay. The cape marks the limit between the Lincoln Sea to the west and the Wandel Sea to the east. About southeast of the cape there is a river forming a small delta that flows from the Mary Peary Peaks, part of the Roosevelt Range to the south. History Robert Peary reached the cape on 13 May 1900, believing it to be the extreme points of Earth, northernmost point of land in the world, although it was later found to lie slightly to the south of the northernmost tip of Kaffeklubben Island. The cape is named after American philanthropist Morris Ketchum Jesup, president of the Peary Arctic Club, who helped finance Peary's expeditions. Plants Specimens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oodaaq
Oodaaq or Oodap Qeqertaa is a bank of gravel and silt northeast of Greenland that has been considered by some to be the northernmost point of land on Earth, though a number of other places have also been given that title since its discovery. It may have been created by the impact of an iceberg in a shallow sea. However, the area of ice in which it appears does not move from year to year. If it was created by an iceberg, then it must have happened long ago. Location Oodaaq lies at 83° 40′ North and 30° 40′ West, only south of the North Pole and north of Kaffeklubben Island, lying near the northeast tip of Greenland. When discovered it measured a mere . History It was discovered in 1978 when a Danish survey team led by Uffe Petersen landed a helicopter on Kaffeklubben Island to confirm that it did indeed lie further north than the tip of Greenland. Having confirmed the fact, a member of the team noticed a dark spot northeast of Kaffeklubben Island. The survey team land ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenlandic Language
Greenlandic ( kl, kalaallisut, link=no ; da, grønlandsk ) is an Eskimo–Aleut language with about 56,000 speakers, mostly Greenlandic Inuit in Greenland. It is closely related to the Inuit languages in Canada such as Inuktitut. It is the most widely spoken Eskimo–Aleut language. Greenlandic has been the sole official language of the Greenlandic autonomous territory since June 2009, which is a move by the Naalakkersuisut, the government of Greenland, to strengthen the language in its competition with the colonial language, Danish. The main variety is Kalaallisut, or West Greenlandic. The second variety is Tunumiit oraasiat, or East Greenlandic. The language of the Thule Inuit of Greenland, Inuktun or Polar Eskimo, is a recent arrival and a dialect of Inuktitut. Greenlandic is a polysynthetic language that allows the creation of long words by stringing together roots and suffixes. The language's morphosyntactic alignment is ergative, treating both the argument (subject) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northernmost Point Of Land
The northernmost point of land on Earth is a contentious issue due to variation of definition. How permanent some of the contenders are makes hard determination difficult, but sets an important threshold. Problematic issues include ice sheets, water movements and inundation, storm activity that may build, shift, or destroy banks of moraine material, and observational difficulties due to remoteness. The following table sets out the main contenders for this title. Currently, Kaffeklubben Island is the northernmost, undisputed candidate among the land areas considered permanent that remain above water. See also *Extremes on Earth This article lists extreme locations on Earth that hold geographical records or are otherwise known for their geophysical or meteorological superlatives. All of these locations are Earth-wide extremes; extremes of individual continents or coun ... References {{Reflist Extreme points of Earth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
