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Thomas Glacier (Greenland)
Thomas Glacier ( da, Thomas Gletscher) is a glacier in northern Greenland. Administratively it belongs to the Northeast Greenland National Park. The glacier was named by Robert Peary after E. B. Thomas, one of the founding members of the Peary Arctic Club in New York. Geography The Thomas Glacier is a large, slow-moving glacier in Roosevelt Land. It flows northwestwards with its terminus at the head of the Hunt Fjord.''Prostar Sailing Directions 2005 Greenland and Iceland Enroute,'' p. 95 The peaks of the Roosevelt Range close to the head of the Thomas Glacier rise to heights of nearly . In the area of its terminus sharp-peaked, dark nunataks protrude above the ice. See also *List of glaciers in Greenland This is a list of glaciers in Greenland. Details on the size and flow of some of the major Greenlandic glaciers are listed by Eric Rignot and Pannir Kanagaratnam (2006) Ice sheets and caps *Greenland Ice Sheet *Christian Erichsen Ice Cap * Flad ... * Peary Land ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valley Glacier
A valley is an elongated low area often running between Hill, hills or Mountain, mountains, which will typically contain a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over a very long period. Some valleys are formed through erosion by glacier, glacial ice. These glaciers may remain present in valleys in high mountains or polar areas. At lower latitudes and altitudes, these glaciation, glacially formed valleys may have been created or enlarged during ice ages but now are ice-free and occupied by streams or rivers. In desert areas, valleys may be entirely dry or carry a watercourse only rarely. In karst, areas of limestone bedrock, dry valleys may also result from drainage now taking place cave, underground rather than at the surface. Rift valleys arise principally from tectonics, earth movements, rather than erosion. Many different types of valleys are described by geographers, using terms th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roosevelt Land
Roosevelt Land ( da, Roosevelts Land) is a peninsula in far northern Greenland. It is a part of the Northeast Greenland National Park.Google Maps The territory was named by Robert Peary after US President Theodore Roosevelt (1858 – 1919). Geography Roosevelt Land is located in western Peary Land, to the north of Amundsen Land, separated from it by the Harder Fjord, To the west it is limited by the Conger Sound, and to the east by Gertrud Rask Land. The northernmost headland is Cape Washington and the westernmost Cape Kane, both on the Lincoln Sea shore. The peninsula is mountainous, deeply cut by glaciated areas. The Roosevelt Range runs across Roosevelt Land eastwards. The main glacier is the Thomas Glacier.GoogleEarth The highest point is a summit found in the southern zone of the central part of the peninsula.Map_of_part_of_Ellesmere_Island_and_far_Northern_Greenland./ref> American_geologist_William_E._Davies.html" ;"title="Ellesmere Island and far Northern Greenland."> ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peary Land
Peary Land is a peninsula in northern Greenland, extending into the Arctic Ocean. It reaches from Victoria Fjord in the west to Independence Fjord in the south and southeast, and to the Arctic Ocean in the north, with Cape Morris Jesup, the northernmost point of Greenland's mainland, and Cape Bridgman in the northeast. History Ancient settlements Peary Land was historically inhabited by three separate cultures, during which times the climate was milder than presently: *Independence I culture, Paleo-Eskimo (around 2000 BC, oldest remains dating from 2400 BC) *Independence II culture, Paleo-Eskimo (800 BC to 200 BC) *Thule culture (ancestral to the modern Inuit, around AD 1300) Peary's explorations The area is named after Robert E. Peary, who first explored it during his expedition of 1891 to 1892. Originally, Peary Land was believed to be an island, separated from the main island by the so-called Peary Channel, an assumed connection between Nordenskiöld Fjord and Indepen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Glaciers In Greenland
This is a list of glaciers in Greenland. Details on the size and flow of some of the major Greenlandic glaciers are listed by Eric Rignot and Pannir Kanagaratnam (2006) Ice sheets and caps *Greenland Ice Sheet * Christian Erichsen Ice Cap *Flade Isblink * Gungner Ice Cap *Hans Tausen Ice Cap * Heimdal Ice Cap *Hurlbut Glacier * Ismarken * Mælkevejen *Maniitsoq Ice Cap (Sukkertoppen) * Storm Ice Cap * Upper Frederiksborg Glacier Other glaciers *A. Harmsworth Glacier * Aage Bertelsen Glacier * Academy Glacier, N * Academy Glacier, NW * Adolf Hoel Glacier * Akuliarutsip Sermerssua * Amdrup Glacier * Apusiaajik Glacier * Balder Glacier * Bernstorff Glacier * Borgjokel Glacier *Bowdoin Glacier * Bredebrae * Bruckner Glacier * C. H. Ostenfeld Glacier * Chamberlin Glacier *Christian IV Glacier * Copeland Glacier (Pasterze Glacier) * Daugaard-Jensen Glacier * Diebitsch Glacier * Docker Smith Glacier * Dodge Glacier * Ejnar Mikkelsen Glacier * F. Graae Glacier * Fan Glacier *Farquhar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operational Navigation Chart A-5, 3rd Edition
An operational definition specifies concrete, replicable procedures designed to represent a construct. In the words of American psychologist S.S. Stevens (1935), "An operation is the performance which we execute in order to make known a concept." For example, an operational definition of "fear" (the construct) often includes measurable physiologic responses that occur in response to a perceived threat. Thus, "fear" might be operationally defined as specified changes in heart rate, galvanic skin response, pupil dilation, and blood pressure. Overview An operational definition is designed to model or represent a concept or theoretical definition, also known as a construct. Scientists should describe the operations (procedures, actions, or processes) that define the concept with enough specificity such that other investigators can replicate their research. Operational definitions are also used to define system states in terms of a specific, publicly accessible process of preparation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nunatak
A nunatak (from Inuit language, Inuit ''nunataq'') is the summit or ridge of a mountain that protrudes from an ice field or glacier that otherwise covers most of the mountain or ridge. They are also called glacial islands. Examples are natural pyramidal peaks. When rounded by glacial action, smaller rock promontories may be referred to as rognons. The word is of Greenlandic language, Greenlandic origin and has been used in English since the 1870s. Description The term is typically used in areas where a permanent ice sheet is present and the nunataks protrude above the sheet.J. J. Zeeberg, ''Climate and Glacial History of the Novaya Zemlya Archipelago, Russian Arctic''. pp. 82–84 Nunataks present readily identifiable landmark reference points in glaciers or ice caps and are often named. While some nunataks are isolated, sometimes they form dense clusters, such as Queen Louise Land in Greenland. Nunataks are generally angular and jagged, which hampers the formation of glacial i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roosevelt Range
The Roosevelt Range or Roosevelt Mountains ( da, Roosevelt Fjelde) is a mountain range in Northern Greenland. Administratively this range is part of the Northeast Greenland National Park. Its highest peak is the highest point in Peary Land. Located about from the North Pole, the Roosevelt Range is the northernmost mountain range on Earth.2002 American Alpine Journal, p.286 History The mountain chain was named by Robert Peary after U.S. President Theodore Roosevelt, who would become one of the main backers of Peary's 1905 Arctic expedition. During the first half of the 20th century the range was quite unexplored, except for the mapping from the coast in 1907 of the Daly Range by Johan Peter Koch, Aage Bertelsen and Tobias Gabrielsen, the northern team of the ill-fated Denmark expedition, as well as aerial surveys and mapping begun by Lauge Koch in the 1920s. In 1953 a geological expedition crossed the range through the ''Polkorridoren'' pass from Frigg Fjord to Sands Fjor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier Terminus
A glacier terminus, toe, or snout, is the end of a glacier at any given point in time. Although glaciers seem motionless to the observer, in reality glaciers are in endless motion and the glacier terminus is always either advancing or retreating. The location of the terminus is often directly related to glacier mass balance, which is based on the amount of snowfall which occurs in the accumulation zone of a glacier, as compared to the amount that is melted in the ablation zone. The position of a glacier terminus is also impacted by localized or regional temperature change over time. Tracking Tracking the change in location of a glacier terminus is a method of monitoring a glacier's movement. The end of the glacier terminus is measured from a fixed position in neighboring bedrock periodically over time. The difference in location of a glacier terminus as measured from this fixed position at different time intervals provides a record of the glacier's change. A similar way of trac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York City
New York, often called New York City or NYC, is the most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the most densely populated major city in the United States, and is more than twice as populous as second-place Los Angeles. New York City lies at the southern tip of New York State, and constitutes the geographical and demographic center of both the Northeast megalopolis and the New York metropolitan area, the largest metropolitan area in the world by urban landmass. With over 20.1 million people in its metropolitan statistical area and 23.5 million in its combined statistical area as of 2020, New York is one of the world's most populous megacities, and over 58 million people live within of the city. New York City is a global cultural, financial, entertainment, and media center with a significant influence on commerce, health care and life sciences, research, technology, education, ... [...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 Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peary Arctic Club
The Peary Arctic Club was an American-based club with the goal of promoting the Arctic expeditions of Robert Peary (1856–1920). This association of influential persons was able to overcome the opposition of the U.S. Navy Department to grant the indispensable five–year leave for Peary's 1898 Arctic expedition. History The Peary Arctic Club was founded in New York City in 1898 by a group of wealthy New York people. Its members were friends of Peary. The idea of establishing the club had been put forward by Morris K. Jesup in the spring 1897. One year after the foundation, Morris Jesup was elected in 1899 as the first president of the club. Henry W. Cannon became treasurer, Herbert Bridgman secretary and Frederick E. Hyde vice-president. Judge Charles P. Daly, president of the American Geographical Society was elected to the executive committee of the club. In 1904, the club was able to raise funds to buy Peary a ship for his expeditions, the SS Roosevelt. The club's fund ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Peary
Robert Edwin Peary Sr. (; May 6, 1856 – February 20, 1920) was an American explorer and officer in the United States Navy who made several expeditions to the Arctic in the late 19th and early 20th centuries. He is best known for, in April 1909, leading an expedition that claimed to be the first to have reached the geographic North Pole. Explorer Matthew Henson, part of the expedition, is thought to have reached what they believed to be the North Pole narrowly before Peary. Peary was born in Cresson, Pennsylvania, but, following his father's death at a young age, was raised in Portland, Maine. He attended Bowdoin College, then joined the United States Coast and Geodetic Survey as a draftsman. He enlisted in the navy in 1881 as a civil engineer. In 1885, he was made chief of surveying for the Nicaragua Canal, which was never built. He visited the Arctic for the first time in 1886, making an unsuccessful attempt to cross Greenland by dogsled. In the Peary expedition to G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
