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Shanwick Oceanic Control
Shanwick is the air traffic control (ATC) name given to the area of international airspace which lies above the northeast part of the Atlantic Ocean. The Shanwick Oceanic Control Area (OCA) abuts Reykjavík OCA to the north, Gander OCA to the west and Santa Maria OCA to the south. Shanwick also has eastern boundaries with the Scottish, Shannon, London, Brest and Madrid domestic ATC flight information regions. History Responsibility for the provision of air traffic services within international airspace is delegated to United Nations member states by the International Civil Aviation Organisation (ICAO). ICAO divides such airspace into flight information regions, parts of which may be deemed controlled airspace and, where appropriate, classified as an Oceanic Control Area. Prior to 1966, both the United Kingdom and Ireland were selected by ICAO to provide control and communications services to air traffic within adjacent areas of the north east Atlantic. The air/ground High Fre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shanwick Map
Shanwick is the air traffic control (ATC) name given to the area of international airspace which lies above the northeast part of the Atlantic Ocean. The Shanwick Oceanic Control Area (OCA) abuts Reykjavík OCA to the north, Gander OCA to the west and Santa Maria OCA to the south. Shanwick also has eastern boundaries with the Scottish, Shannon, London, Brest and Madrid domestic ATC flight information regions. History Responsibility for the provision of air traffic services within international airspace is delegated to United Nations member states by the International Civil Aviation Organisation (ICAO). ICAO divides such airspace into flight information regions, parts of which may be deemed controlled airspace and, where appropriate, classified as an Oceanic Control Area. Prior to 1966, both the United Kingdom and Ireland were selected by ICAO to provide control and communications services to air traffic within adjacent areas of the north east Atlantic. The air/ground High Fre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birdlip
Birdlip is a village in Gloucestershire, England, in the Cotswolds Area of Outstanding Natural Beauty south of Cheltenham and south east of Gloucester. History Some fine pre-Roman bronze art, including the famous Birdlip Mirror, from around AD 50, was found at Barrow Wake near Birdlip. The village was once on the main road between Gloucester and Cirencester, now the A417. The building of a bypass, which opened in December 1988, moved the main route away from the village. Black Horse Ridge is a 17th-century building that until 1900 was a public house.Verey, 1970, page 112 A lodge adjacent to Black Horse Ridge was designed by Richard Pace and built in 1822. Birdlip's remaining pub is The Royal George Hotel, which was built in the 19th century. Birdlip House is a Georgian house built late in the 18th century. The Church of England parish church of Saint Mary burned down in 1897, and was replaced in 1957 by a new church designed by the architect Harold Stratton-Davis. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Refraction
In physics, refraction is the redirection of a wave as it passes from one medium to another. The redirection can be caused by the wave's change in speed or by a change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction. How much a wave is refracted is determined by the change in wave speed and the initial direction of wave propagation relative to the direction of change in speed. For light, refraction follows Snell's law, which states that, for a given pair of media, the ratio of the sines of the angle of incidence ''θ1'' and angle of refraction ''θ2'' is equal to the ratio of phase velocities (''v''1 / ''v''2) in the two media, or equivalently, to the refractive indices (''n''2 / ''n''1) of the two media. :\frac =\frac=\frac Optical prisms and lenses use refraction to redirect light, as does the human eye. The refractive index of materials varies with the wavelengt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Frequency
High frequency (HF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) between 3 and 30 megahertz (MHz). It is also known as the decameter band or decameter wave as its wavelengths range from one to ten decameters (ten to one hundred meters). Frequencies immediately below HF are denoted medium frequency (MF), while the next band of higher frequencies is known as the very high frequency (VHF) band. The HF band is a major part of the shortwave band of frequencies, so communication at these frequencies is often called shortwave radio. Because radio waves in this band can be reflected back to Earth by the ionosphere layer in the atmosphere – a method known as "skip" or " skywave" propagation – these frequencies are suitable for long-distance communication across intercontinental distances and for mountainous terrains which prevent line-of-sight communications. The band is used by international shortwave broadcasting stations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Dependent Surveillance - Broadcast
Automatic may refer to: Music Bands * Automatic (band), Australian rock band * Automatic (American band), American rock band * The Automatic, a Welsh alternative rock band Albums * ''Automatic'' (Jack Bruce album), a 1983 electronic rock album * ''Automatic'' (Sharpe & Numan album), a 1989 synthpop album * ''Automatic'' (The Jesus and Mary Chain album), a 1989 alternative rock album * ''Automatic'', a 1997 electronic album by Le Car * ''Automatic'' (Dweezil Zappa album), a 2000 hard rock album, or the title song * ''Automatic'', a 2003 punk rock album by The Turbo A.C.'s * ''Automatic'' (Stitches album), a 2006 punk rock album, or the title song * ''Automatic'' (VNV Nation album), a 2011 futurepop album * ''Automatic'', a 2013 reggae-rock album by Iration * ''Automatic'' (Don Broco album), a 2015 rock album * ''Automatic'' (Kaskade album), 2015 album by Kaskade * ''Automatic'' (Mildlife album), 2020 album by Mildlife Songs * "Automatic" (Danny Fernandes song) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Procedural Control
Procedural control is a method of providing air traffic control services without the use of radar. It is used in regions of the world, specifically sparsely populated land areas and oceans, where radar coverage is either prohibitively expensive or is simply not feasible. It also may be used at very low-traffic airports, or at other airports at night when the traffic levels may not justify staffing the radar control positions, or as a back-up system in the case of radar failure. Separation In air traffic control, the risk of aircraft colliding is managed by applying separation rules. These rules require aircraft to be separated by either a minimum vertical distance, or if vertical separation is not feasible, by a minimum horizontal distance defined by various means. One of the means of determining horizontal separation is by a controller observing the radar returns of the aircraft to be at least a minimum horizontal distance apart. This is the essence of radar control and is pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portmanteau
A portmanteau word, or portmanteau (, ) is a blend of wordsGarner's Modern American Usage , p. 644. in which parts of multiple words are combined into a new word, as in ''smog'', coined by blending ''smoke'' and ''fog'', or ''motel'', from ''motor'' and ''hotel''. In , a portmanteau is a single morph that is analyzed as representing two (or more) underlying s. When portmanteaus shorten es ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scotland
Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to the north and west, the North Sea to the northeast and east, and the Irish Sea to the south. It also contains more than 790 islands, principally in the archipelagos of the Hebrides and the Northern Isles. Most of the population, including the capital Edinburgh, is concentrated in the Central Belt—the plain between the Scottish Highlands and the Southern Uplands—in the Scottish Lowlands. Scotland is divided into 32 administrative subdivisions or local authorities, known as council areas. Glasgow City is the largest council area in terms of population, with Highland being the largest in terms of area. Limited self-governing power, covering matters such as education, social services and roads and transportation, is devolved from the Scott ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ayrshire
Ayrshire ( gd, Siorrachd Inbhir Àir, ) is a historic county and registration county in south-west Scotland, located on the shores of the Firth of Clyde. Its principal towns include Ayr, Kilmarnock and Irvine and it borders the counties of Renfrewshire and Lanarkshire to the north-east, Dumfriesshire to the south-east, and Kirkcudbrightshire and Wigtownshire to the south. Like many other counties of Scotland it currently has no administrative function, instead being sub-divided into the council areas of North Ayrshire, South Ayrshire and East Ayrshire. It has a population of approximately 366,800. The electoral and valuation area named Ayrshire covers the three council areas of South Ayrshire, East Ayrshire and North Ayrshire, therefore including the Isle of Arran, Great Cumbrae and Little Cumbrae. These three islands are part of the historic County of Bute and are sometimes included when the term ''Ayrshire'' is applied to the region. The same area is known as ''Ayrshire a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prestwick
Prestwick ( gd, Preastabhaig) is a town in South Ayrshire on the west coast of Ayrshire in Scotland about southwest of Glasgow. It adjoins the larger town of Ayr to the south on the Firth of Clyde coast, the centre of which is about south, and the small village of Monkton, Ayrshire, Monkton to the north. It had a population of 14,901 at the 2011 census. The town is served by Glasgow Prestwick Airport, which serves many European destinations as well as transatlantic and other international cargo flights. The town was the first home of The Open Championship, the Open Golf Championship, which was played on the Prestwick Golf Club, Prestwick Old Course from 1860 to 1872. History Prestwick's name comes from the Old English for, ''priest's farm'': ''preost'' meaning "priest" and ''wic'' meaning "farm". The town was originally an outlying farm of a religious house. George T. Flom suggested that the name was of Old Norse origin. In this case, it would mean "priest's bay". From ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NATS Holdings
NATS Holdings, formerly National Air Traffic Services and commonly referred to as NATS, is the main air navigation service provider in the United Kingdom. It inherited the traditions of UK air traffic control, which (founded over Croydon Airport) was the world's first air traffic control regime. It provides en-route air traffic control services to flights within the UK flight information regions and the Shanwick Oceanic Control Area, and provides air traffic control services to 14 UK airports. The workforce of NATS is mainly made up of air traffic controllers (ATCOs), air traffic control engineers (ATCEs), air traffic services assistants (ATSAs) and science technical analytical and research staff (STARs). Administrative and support staff make up the remainder of the 4,200 or so employees of NATS. NATS is split into two main service provision companies: ''NATS En-Route PLC'' (NERL) and ''NATS Services Ltd'' (NSL). * NERL is the sole provider of civilian en-route air traffic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
