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Brahe Rock
Brahe Rock ( bg, скала Брахе, skala Brahe, ) is the rock off the north coast of Livingston Island in the South Shetland Islands, Antarctica 85 m long in west–east direction and 50 m wide, and split in three. Its surface area is 0.14 ha. The vicinity was visited by early 19th century sealers.L. IvanovGeneral Geography and History of Livingston Island.In: ''Bulgarian Antarctic Research: A Synthesis''. Eds. C. Pimpirev and N. Chipev. Sofia: St. Kliment Ohridski University Press, 2015. pp. 17–28 The feature is named after Tycho Brahe (1546-1601), a Danish astronomer who applied the triangulation method to map Hven (Ven) Island; in association with other names in the area deriving from the early development or use of geodetic instruments and methods. Location Brahe Rock is located at ,Bulgarian Antarctic Gazetteer. Antarctic P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctica
Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest continent, being about 40% larger than Europe, and has an area of . Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of . Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual precipitation of over along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost . Antarctica holds the record for the lowest measured temperature on Earth, . The coastal regions can reach temperatures over in summer. Native species of animals include mites, nematodes, penguins, seals and tardigrades. Where vegetation o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Essex Point
Essex Point is a point at the northwest end of Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica. It forms the west side of the entrance to Barclay Bay and the northeast side of the entrance to Svishtov Cove, and is surmounted by Drong Hill. The feature is part of the Antarctic Specially Protected Area ''ASPA 126 Byers Peninsula'', situated in one of its restricted zones. Measure 4 (2016), ATCM XXXIX Final Report. Santiago, 2016 It was named by the (UK-APC) in 1958 after the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctic Place-names Commission
The Antarctic Place-names Commission was established by the Bulgarian Antarctic Institute in 1994, and since 2001 has been a body affiliated with the Ministry of Foreign Affairs of Bulgaria. The Commission approves Bulgarian place names in Antarctica, which are formally given by the President of the Republic according to the Bulgarian Constitution (Art. 98) and the established international practice. Bulgarian names in Antarctica Geographical names in Antarctica reflect the history and practice of Antarctic exploration. The nations involved in Antarctic research give new names to nameless geographical features for the purposes of orientation, logistics, and international scientific cooperation. As of 2021, there are some 20,091 named Antarctic geographical features, including 1,601 features with names given by Bulgaria.Bulgarian Antarctic Gazett ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Window Island
Window Island is a small ice-free island off the north coast of Ray Promontory in the northwest of Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica. The island has a surface area of L.L. IvanovAntarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands.Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2009. and rises to . It was known to the early 19th century sealers operating on Byers Peninsula. The feature was charted and descriptively named by Captain George Powell in the British sealing vessel ''Dove'' which visited the South Shetlands in 1820–22. Location Window Island is located at which is east-northeast of Essex Point, northeast of Voyteh Point, northwest of Nedelya Point and southwest of Cape Shirreff (British mapping in 1822 and 1968, Chilean in 1971, Spanish in 1861 and 1992, and Bulgarian in 2005 and 2009). See also * Composite Antarctic Gazetteer * List of Antarctic islands south of 6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geodesy
Geodesy ( ) is the Earth science of accurately measuring and understanding Earth's figure (geometric shape and size), orientation in space, and gravity. The field also incorporates studies of how these properties change over time and equivalent measurements for other planets (known as '' planetary geodesy''). Geodynamical phenomena, including crustal motion, tides and polar motion, can be studied by designing global and national control networks, applying space geodesy and terrestrial geodetic techniques and relying on datums and coordinate systems. The job title is geodesist or geodetic surveyor. History Definition The word geodesy comes from the Ancient Greek word ''geodaisia'' (literally, "division of Earth"). It is primarily concerned with positioning within the temporally varying gravitational field. Geodesy in the German-speaking world is divided into "higher geodesy" ( or ), which is concerned with measuring Earth on the global scale, and "practical geodes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Shetland Islands
The South Shetland Islands are a group of Antarctic islands with a total area of . They lie about north of the Antarctic Peninsula, and between southwest of the nearest point of the South Orkney Islands. By the Antarctic Treaty of 1959, the islands' sovereignty is neither recognized nor disputed by the signatories and they are free for use by any signatory for non-military purposes. The islands have been claimed by the United Kingdom since 1908 and as part of the British Antarctic Territory since 1962. They are also claimed by the governments of Chile (since 1940, as part of the Antártica Chilena province) and Argentina (since 1943, as part of Argentine Antarctica, Tierra del Fuego Province). Several countries maintain research stations on the islands. Most of them are situated on King George Island, benefitting from the airfield of the Chilean base Eduardo Frei. There are sixteen research stations in different parts of the islands, with Chilean stations being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ven (Sweden)
Ven ( da, Hven, older Swedish spelling Hven) is a small Swedish island in the Øresund strait, between Scania and Zealand (Denmark). It is part of Landskrona Municipality, Scania County. The island has 371 inhabitants and an area of . During the 1930s, the population was at its peak, with approximately 1,300 inhabitants. There are four villages on the island: Bäckviken, Tuna By, Norreborg and Kyrkbacken. The island is best known as the location of Tycho Brahe's 16th-century observatories. Geography Unlike the relatively flat islands Amager and Saltholm, Ven rises from the Öresund with steep and dramatic coastlines. This makes the island easily visible from both Zealand and Scania, as well as from all ships that sail in and out of the Baltic Sea. Its southern coastline resembles the White Cliffs of Dover, Møns Klint and Cape Arkona, but owing to a higher degree of sand and lower of chalk, the cliffs are more yellow than white. Almost the entire island consists of a flat agric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triangulation (surveying)
In surveying, triangulation is the process of determining the location of a point by measuring only angles to it from known points at either end of a fixed baseline by using trigonometry, rather than measuring distances to the point directly as in trilateration. The point can then be fixed as the third point of a triangle with one known side and two known angles. Triangulation can also refer to the accurate surveying of systems of very large triangles, called triangulation networks. This followed from the work of Willebrord Snell in 1615–17, who showed how a point could be located from the angles subtended from ''three'' known points, but measured at the new unknown point rather than the previously fixed points, a problem called resectioning. Surveying error is minimized if a mesh of triangles at the largest appropriate scale is established first. Points inside the triangles can all then be accurately located with reference to it. Such triangulation methods were used for accur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
