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Geographical Society Island
Geographical Society Island () is an island off Foster Bay in northeastern Greenland. Geography The island has an area of 1,717 km2. It is mountainous with Svedenborg Fjeld as the highest point at 1,730 m. To the north lies the mouth of the Kaiser Franz Joseph Fjord with Ymer Island to the NW and smaller Bantekoe Island to the NE in Foster Bay. To the south lies Traill Island, separated by a narrow sound, the Vega Sound. In the west, over King Oscar Fjord lies Ella Island. Geology From west to east, the rocks constituting the island are sandstone of roughly Devonian, Carboniferous and Cretaceous age, and some smaller areas with Triassic and Jurassic The Jurassic ( ) is a geologic period and stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The Jurassic constitutes the middle period of ... sandstone. See also * List of islands of Greenland References Ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Danish Geographical Society
The Royal Danish Geographical Society (RDGS, da, Det Kongelige Danske Geografiske Selskab) is a scientific society aimed at furthering the knowledge of the Earth and its inhabitants and to disseminate interest in the science of geography. It was founded 18 November 1876 on the initiative of Professor E. D. Erslev. The society is based in Copenhagen, Denmark. The society awards the Hans Egede Medal in silver 'preferably for geographical studies and researches in the Arctic countries'. It was established in 1916 and named after Hans Egede Hans Poulsen Egede (31 January 1686 – 5 November 1758) was a Dano-Norwegian Lutheran missionary who launched mission efforts to Greenland, which led him to be styled the Apostle of Greenland. He established a successful mission among the Inui ..., who was a Danish missionary in Greenland. External links Royal Danish Geographical Society website Geographic societies Scientific organizations based in Denmark Organizations based in Cop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traill Island
Traill Island ( da, Traill Ø) is a large island in eastern Greenland. It is named after zoologist Thomas Stewart Traill. The island is a part of the Northeast Greenland National Park. Geography Traill Island is a coastal island located in the desolate region of Eastern Greenland on the eastern side of King Oscar Fjord, northeast of Davy Sound. Geographical Society Island lies to the north, separated by a narrow channel, the Vega Sound. The southernmost point of the island is Cape Simpson. Dream Bay ''(Drømmebugten)'' is located WNW of the headland and larger Mountnorris Fjord to the northeast. The highest summit of the island, a high unnamed peak of the Svinhufvud Range is one of the ultra-prominent An ultra-prominent peak, or Ultra for short, is a mountain summit with a topographic prominence of or more; it is also called a P1500. The prominence of a peak is the minimum height of climb to the summit on any route from a higher peak, or fr ... summits of Green ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The Jurassic constitutes the middle period of the Mesozoic, Mesozoic Era and is named after the Jura Mountains, where limestone strata from the period were first identified. The start of the Jurassic was marked by the major Triassic–Jurassic extinction event, associated with the eruption of the Central Atlantic magmatic province, Central Atlantic Magmatic Province. The beginning of the Toarcian Stage started around 183 million years ago and is marked by an extinction event associated with widespread Anoxic event, oceanic anoxia, ocean acidification, and elevated temperatures likely caused by the eruption of the Karoo-Ferrar, Karoo-Ferrar large igneous provinces. The end of the Jurassic, however, has no clear boundary with the Cretaceous and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triassic
The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period of the Mesozoic Era. Both the start and end of the period are marked by major extinction events. The Triassic Period is subdivided into three epochs: Early Triassic, Middle Triassic and Late Triassic. The Triassic began in the wake of the Permian–Triassic extinction event, which left the Earth's biosphere impoverished; it was well into the middle of the Triassic before life recovered its former diversity. Three categories of organisms can be distinguished in the Triassic record: survivors from the extinction event, new groups that flourished briefly, and other new groups that went on to dominate the Mesozoic Era. Reptiles, especially archosaurs, were the chief terrestrial vertebrates during this time. A specialized subgroup of archo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of the entire Phanerozoic. The name is derived from the Latin ''creta'', "chalk", which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation ''Kreide''. The Cretaceous was a period with a relatively warm climate, resulting in high eustatic sea levels that created numerous shallow inland seas. These oceans and seas were populated with now- extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was ice free, and forests extended to the poles. During this time, new groups of mammals and birds appeared. During the Early Cretaceous, flowering plants appeared and began to rapidly diversify, becoming the dominant group of plants across the Earth b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carboniferous
The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carboniferous'' means "coal-bearing", from the Latin '' carbō'' ("coal") and '' ferō'' ("bear, carry"), and refers to the many coal beds formed globally during that time. The first of the modern 'system' names, it was coined by geologists William Conybeare and William Phillips in 1822, based on a study of the British rock succession. The Carboniferous is often treated in North America as two geological periods, the earlier Mississippian and the later Pennsylvanian. Terrestrial animal life was well established by the Carboniferous Period. Tetrapods (four limbed vertebrates), which had originated from lobe-finned fish during the preceding Devonian, became pentadactylous in and diversified during the Carboniferous, including early amphibian line ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devonian
The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, where rocks from this period were first studied. The first significant adaptive radiation of life on dry land occurred during the Devonian. Free-sporing vascular plants began to spread across dry land, forming extensive forests which covered the continents. By the middle of the Devonian, several groups of plants had evolved leaves and true roots, and by the end of the period the first seed-bearing plants appeared. The arthropod groups of myriapods, arachnids and hexapods also became well-established early in this period, after starting their expansion to land at least from the Ordovician period. Fish reached substantial diversity during this time, leading the Devonian to often be dubbed the Age of Fishes. The placoderms began dominating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operational Navigation Chart B-9, 1st 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] |
Ella Island
Ella Island, or Ella Ø, is an island in eastern Greenland, within Northeast Greenland National Park. Geography Ella Island is located at the mouth of Kempe Fjord in the northern end of King Oscar Fjord. To the east lie larger Traill Island and Geographical Society Island. Off its northern end lie Maria Island and Ruth Island. The island has an area of 143.6 km2 and a shoreline of 59.6 kilometres. Ella Island is separated from the western shore of the fjord by the Narwhal Sound. History Lauge Koch had a cabin on the northern side of the island named ''Eagle's nest''. The botanist Thorvald Sørensen spent the years 1931-1935 here. His observations formed the basis for his doctoral thesis in 1941. During World War II, US forces had an installation on the island called ''Bluie East Four''. The Sirius Sledge Patrol maintains a small base on the island which is staffed only in summer. In 1971 a meteorite was found on Ella Island, classified as a L-6 chondrite. See also *List ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King Oscar Fjord
King Oscar Fjord ( da, Kong Oscar Fjord) is a fjord in East Greenland, marking the northern border of the Scoresby Land Peninsula. It was named by A.G. Nathorst on his 1899 expedition as ''Konung Oscars Fjord'' for Oscar II, King of Sweden from 1872 to 1907 and of Norway from 1872 until 1905. Geography King Oscar Fjord is a major fjord system in NE Greenland. The main fjord is 10–25 km wide, bounded by Traill Island and Geographical Society Island in the east. In the inner and northern end of the fjord lies Ella Island. The Davy Sound at the southeastern end connects with the Greenland Sea after extending for about 20 km in a NW/SE direction.''Prostar Sailing Directions 2005 Greenland and Iceland Enroute'', p. 118 Lyell Land forms the western boundary and Scoresby Land with the Stauning Alps lies to the southwest. The Antarctic Sound separates the Suess Land Peninsula and Ymer Island and connects with the Kaiser Franz Joseph Fjord system to the north. Other branch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greenland Sea
The Greenland Sea is a body of water that borders Greenland to the west, the Svalbard archipelago to the east, Fram Strait and the Arctic Ocean to the north, and the Norwegian Sea and Iceland to the south. The Greenland Sea is often defined as part of the Arctic Ocean, sometimes as part of the Atlantic Ocean. However, definitions of the Arctic Ocean and its seas tend to be imprecise or arbitrary. In general usage the term "Arctic Ocean" would exclude the Greenland Sea. In oceanographic studies the Greenland Sea is considered part of the Nordic Seas, along with the Norwegian Sea. The Nordic Seas are the main connection between the Arctic and Atlantic oceans and, as such, could be of great significance in a possible shutdown of thermohaline circulation. In oceanography the Arctic Ocean and Nordic Seas are often referred to collectively as the "Arctic Mediterranean Sea", a marginal sea of the Atlantic. The sea has Arctic climate with regular northern winds and temperatures rarely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
