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Deception Island
Deception Island is in the South Shetland Islands close to the Antarctic Peninsula with a large and usually "safe" natural harbour, which is occasionally affected by the underlying active volcano. This island is the caldera of an active volcano, which seriously damaged local scientific stations in 1967 and 1969. The island previously held a whaling station. It is now a tourist destination with over 15,000 visitors per year. Two research stations are operated by Argentina and Spain during the summer season. While various countries have asserted sovereignty, it is still administered under the Antarctic Treaty System, meaning it is under no control. Geography Located within the Bransfield Strait, the island is roughly circular and horseshoe-shaped, with a maximum diameter around . The highest peak, Mount Pond on the east side of the island, has an elevation of , while Mount Kirkwood on the west has an elevation of . Over half (57%) of the island is covered by glaciers up to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Foster
Port Foster is one of the safest harbours in Antarctica, located in Deception Island in the South Shetland Islands. History The harbour was known to sealers as early as 1820, and in its early history was called ''Port Williams'', after Captain William Smith's brig, ''Williams''; or ''Yankee Harbor'', because of the number of American sealers who harboured there. The port, briefly called Yankee Harbour and Port Dunbar, was named Port Foster after Henry Foster, captain of and leader of the first scientific expedition to the island in Jan.-March 1829. The expedition, based in Pendulum Cove, made gravitational and magnetic measurements, produced the first topographic map, made temperature measurements, and made a hydrographic survey. Former names for the port have remained for other features in the same archipelago — Williams Point and Yankee Harbor. Description The centre of Deception Island is a caldera, formed by a gigantic volcanic eruption and later flooded. This ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neptune's Bellows
Neptune's Bellows is a channel on the southeast side of Deception Island forming the entrance to Port Foster, in the South Shetland Islands. The name, after the Roman sea god Neptune Neptune is the eighth and farthest known planet from the Sun. It is the List of Solar System objects by size, fourth-largest planet in the Solar System by diameter, the third-most-massive planet, and the densest giant planet. It is 17 t ..., was appended by American sealers prior to 1822 because of the strong gusts experienced in this narrow channel. Named for "the gusts that blow in and out as if they came from a trumpet or funnell (sic)." References SCAR Composite Antarctic Gazetteer Straits of Antarctica Geography of Deception Island {{DeceptionIsland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sentinel-2
Sentinel-2 is an Earth observation mission from the Copernicus Programme that acquires optical imagery at high spatial resolution (10 m to 60 m) over land and coastal waters. The mission's Sentinel-2A and Sentinel-2B satellites were joined in orbit in 2024 by a third, Sentinel-2C, and in the future by Sentinel-2D, eventually replacing the A and B satellites, respectively. The mission supports services and applications such as agricultural monitoring, emergencies management, land cover classification, and water quality. Sentinel-2 has been developed and is being operated by the European Space Agency. The satellites were manufactured by a consortium led by Airbus Defence and Space in Friedrichshafen, Germany. Overview The Sentinel-2 mission includes: * Multispectral image, Multi-spectral data with 13 bands in the Visible spectrum, visible, Infrared#Regions within the infrared, near infrared, and Infrared#Regions within the infrared, short wave infrared part of the Electromagnetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lava Dome
In volcanology, a lava dome is a circular, mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano. Dome-building eruptions are common, particularly in convergent plate boundary settings. Around 6% of eruptions on Earth form lava domes. The geochemistry of lava domes can vary from basalt (e.g. Semeru, 1946) to rhyolite (e.g. Chaiten, 2010) although the majority are of intermediate composition (such as Santiaguito, dacite-andesite, present day). The characteristic dome shape is attributed to high viscosity that prevents the lava from flowing very far. This high viscosity can be obtained in two ways: by high levels of silica in the magma, or by degassing of fluid magma. Since viscous basaltic and andesitic domes weather fast and easily break apart by further input of fluid lava, most of the preserved domes have high silica content and consist of rhyolite or dacite. Existence of lava domes has been suggested for some domed structures on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Costa Recta
Costa may refer to: Biology * Rib (Latin: ''costa''), in vertebrate anatomy * Costa (botany), the central strand of a plant leaf or thallus * Costa (coral), a stony rib, part of the skeleton of a coral * Costa (entomology), the leading edge of the forewing of winged insects, as well as a part of the male clasper Arts and entertainment * ''Costa!'', a 2001 Dutch film * ''Costa!!'', a 2022 Dutch film * Costa Book Awards, formerly the Whitbread Book Award, a literary award in the UK Organisations * Costa Caribe, a Nicaraguan basketball team * Costa Coffee, a British coffee shop chain, sponsor of the book award * Costa Cruises, a leading cruise company in Europe * Costa Del Mar, an American manufacturer of polarized sunglasses * Costa Group, Australian food supplier Places * Costa, Haute-Corse, France, a commune on the island of Corsica * Costa, Lajas, Puerto Rico, a barrio * Costa, West Virginia, US, or Brushton, a community * Costa Head, a headland on the Orkney Islands * Departam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telefon Ridge
Telefon Ridge () is a ridge rising west of Telefon Bay on Deception Island, in the South Shetland Islands. Named from association with Telefon Bay by the United Kingdom Antarctic Place-Names Committee The UK Antarctic Place-Names Committee (or UK-APC) is a United Kingdom government committee, part of the Foreign and Commonwealth Office, responsible for recommending names of geographical locations within the British Antarctic Territory (BAT) and ... (UK-APC) in 1959. Peaks * Mount Uritorco * Mount Achala (680m) References SCAR Composite Antarctic Gazetteer Ridges of Antarctica Geography of Deception Island {{DeceptionIsland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telefon Bay
Telefon Bay is a small bay on the north-west coast of Port Foster, Deception Island, in the South Shetland Islands of Antarctica. It is surmounted by Telefon Ridge. The name appears on the chart of the French Antarctic Expedition under Charcot, 1908–10. The name derives from the ship '' SS Telefon'', which was repaired here. Antarctic Specially Protected Area The bay forms part of an Antarctic Specially Protected Area An Antarctic Specially Protected Area (ASPA) is an area on the continent of Antarctica, or on nearby islands, which is protected by scientists and several different international bodies. The protected areas were established in 1961 under the Antarc ... (ASPA 140), comprising several separate sites on Deception Island, and designated as such primarily for its botanic and ecological values. References SCAR Composite Antarctic Gazetteer External linksSecretariat of the Antarctic Treaty Visitor Guidelines and island description Bays of the South Shetland ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sewing-Machine Needles
Sewing-Machine Needles, also known as Rocas Ministro Ezcurra () is a group of three prominent rock needles, the highest 45 m above water, lying close southeast of Rancho Point, Deception Island, in the South Shetland Islands. The name ''Sewing-Machine Rock'' was given by whalers for what was originally a conspicuous natural arch. Needles is now considered the more suitable descriptive term; an earthquake tremor in 1924 caused the arch to collapse. The name ''Rocas Ministro Ezcurra'' was given by Dr Douglas (later Sir Douglas) Mawson, leader of the Australasian Antarctic Expedition of 1912-14.SCAR. 2016. Composite Gazetteer of Antarctica ENEA-PNRA. Scientific Committee on Antarctic Research (SCAR), Collated by Programma Nazionale di Ricerche in Antartide (PNRA-Italy) for the SCAR Standing Committee on Antarctic Geographic Information (SCAGI). Australian Antarctic Data Centre, Canberra, Australia. Available online at: https://data.aad.gov.au/aadc/gaz/scar/display_name.cfm?gaz_id=111 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fumarole Bay
Fumarole Bay is a bay on the southwest side of Port Foster in the interior of Deception Island, in the South Shetland Islands. Having a similar name in the same island is the Vapour Col. The bay is part of the larger, enclosed water of Port Foster. It was named "Bahia 1 de Mayo" or "Bahia Primero de Mayo" by the Argentine Antarctic Expedition of 1942–43, after the ''1 de Mayo'', an expedition ship which visited Deception Island in 1942 and 1943; she sank off the coast of Argentina on 5 February 1944. The Falkland Islands Dependencies Survey carried out a full survey in 1953-54. Aerial photography was carried out by the Falkland Islands and Dependencies Aerial Survey Expedition of 1956-57. After this, the bay was named 'Fumarole Bay' because the most active fumarole on the island is situated here. Fumarole A fumarole (or fumerole) is a vent in the surface of the Earth or another rocky planet from which hot volcanic gases and vapors are emitted, without any accompanyi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Kirkwood
Mount Kirkwood () is a mountain, 460 m, standing 3 nautical miles (6 km) west of Entrance Point in the south part of Deception Island, in the South Shetland Islands. First charted by a British expedition 1828–31, under Foster. Named in 1950 by the United Kingdom Antarctic Place-Names Committee (UK-APC) for Commander Harry Kirkwood, Royal Navy, master of the John Biscoe John Biscoe (28 April 1794 – 1843) was an English mariner and explorer who commanded the first expedition known to have sighted the areas named Enderby Land and Graham Land along the coast of Antarctica. The expedition also found a number of is ... in Antarctic waters, 1948–50. Kirkwood, Mount Geography of Deception Island {{DeceptionIsland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Crater Lake
A volcanic crater lake is a lake in a volcanic crater, crater that was formed by explosive eruption, explosive activity or a caldera, collapse during a types of volcanic eruptions, volcanic eruption. Formation Lakes in calderas fill large craters formed by the collapse of a volcano during an eruption. Lakes in maars fill medium-sized craters where an eruption deposited debris around a vent. Crater lakes form as the created depression, within the Rim (craters), crater rim, is filled by water. The water may come from Precipitation (meteorology), precipitation, groundwater circulation (often Hot Spring, hydrothermal fluids in the case of volcanic craters) or melted ice. Its level rises until an equilibrium is reached between the rates of incoming and outgoing water. Sources of water loss singly or together may include evaporation, subsurface seepage, and, in places, surface leakage or overflow when the lake level reaches the lowest point on its rim. At such a saddle location, the u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maar
A maar is a broad, low-relief volcanic crater caused by a phreatomagmatic eruption (an explosion which occurs when groundwater comes into contact with hot lava or magma). A maar characteristically fills with water to form a relatively shallow crater lake, which may also be called a maar.David S.G. Thomas and Andrew Goudie (eds.), ''The Dictionary of Physical Geography'' (Oxford: Blackwell, 2000), 301. . Maars range in size from across and from deep. Most maars fill with water to form natural lakes. Most maars have low rims composed of a mixture of loose fragments of volcanic rocks and rocks torn from the walls of the diatreme. Etymology The name ''maar'' comes from a Moselle Franconian dialect word used for the circular lakes of the Daun area of Germany. The word evolved from its first use in German in the modern geological sense in 1819 and is now used in English and in the geological sciences as the term for the explosion crater, even if water from rainfall might alway ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
