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Retriangulation of Great Britain, the Glossary

The Retriangulation of Great Britain was a triangulation project carried out between 1935 and 1962 that sought to improve the accuracy of maps of Great Britain.^[1]

110 relations: Aerial survey, Air base, Altitude, Angle, Anti-aircraft warfare, Argyll, Beachy Head, Ben Nevis, Bilby tower, Bristol, Caithness, Canada, Care and maintenance, Cassini projection, Coastal artillery, Conscription, Cooke, Troughton & Simms, Cotswolds, Counties of the United Kingdom, County Wicklow, Dublin, Dunnose, Isle of Wight, East Anglia, ED50, Edinburgh, Error, Faroe Islands, Frame of reference, France, Geodesy, Geodetic control network, Geodetic datum, Geoid, George Biddell Airy, Gravelines, Great Britain, Great Whernside, Greenland, Hellisøy Lighthouse, Hill of Tara, Holyhead, Home counties, Iceland, Institut national de l'information géographique et forestière, Irish Sea, Isle of Man, Isle of Wight, Kilometre, Kippure, Latitude, ... Expand index (60 more) »
Geodetic surveys
Geography of Great Britain
Surveying of the United Kingdom

Aerial survey

Aerial survey is a method of collecting geomatics or other imagery by using airplanes, helicopters, UAVs, balloons or other aerial methods.

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An airbase (stylised air base in American English), sometimes referred to as a military airbase, military airfield, military airport, air station, naval air station, air force station, or air force base, is an aerodrome or airport used as a military base by a military force for the operation of military aircraft.

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Altitude

Altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object.

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Angle

In Euclidean geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.

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Anti-aircraft warfare

Anti-aircraft warfare is the counter to aerial warfare and it includes "all measures designed to nullify or reduce the effectiveness of hostile air action" (NATO's definition).

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Argyll

Argyll (archaically Argyle; Earra-Ghàidheal), sometimes called Argyllshire, is a historic county and registration county of western Scotland.

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Beachy Head

Beachy Head is a chalk headland in East Sussex, England.

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Ben Nevis

Ben Nevis (Beinn Nibheis) is the highest mountain in Scotland, the United Kingdom, and the British Isles.

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Bilby tower

A Bilby tower is a type of survey tower made from steel and used by the United States Coast and Geodetic Survey (USCG&S) from 1927 to 1984.

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Bristol

Bristol is a city, unitary authority area and ceremonial county in South West England, the most populous city in the region.

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Caithness

Caithness (Gallaibh; Katanes.) is a historic county, registration county and lieutenancy area of Scotland.

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Canada

Canada is a country in North America.

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Care and maintenance

Care and maintenance is a term used in the mining industry to describe processes and conditions on a closed mine site where there is potential to recommence operations at a later date.

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Cassini projection

The Cassini projection (also sometimes known as the Cassini–Soldner projection or Soldner projection) is a map projection first described in an approximate form by César-François Cassini de Thury in 1745.

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Coastal artillery

Coastal artillery is the branch of the armed forces concerned with operating anti-ship artillery or fixed gun batteries in coastal fortifications.

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Conscription

Conscription is the state-mandated enlistment of people in a national service, mainly a military service.

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Cooke, Troughton & Simms

Cooke, Troughton & Simms was a British instrument-making firm formed in York in 1922 by the merger of T. Cooke & Sons and Troughton & Simms.

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Cotswolds

The Cotswolds is a region of central South West England, along a range of rolling hills that rise from the meadows of the upper River Thames to an escarpment above the Severn Valley and the Vale of Evesham.

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Counties of the United Kingdom

The counties of the United Kingdom are subnational divisions of the United Kingdom, used for the purposes of administrative, geographical and political demarcation.

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County Wicklow

County Wicklow (Contae Chill Mhantáin) is a county in Ireland.

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Dublin

Dublin is the capital of the Republic of Ireland and also the largest city by size on the island of Ireland.

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Dunnose, Isle of Wight

Dunnose is a cape on the Isle of Wight in the English Channel.

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East Anglia

East Anglia is an area in the East of England.

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ED50

ED50 ("European Datum 1950", EPSG:4230) is a geodetic datum which was defined after World War II for the international connection of geodetic networks.

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Edinburgh

Edinburgh (Dùn Èideann) is the capital city of Scotland and one of its 32 council areas.

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Error

An error (from the Latin, meaning 'to wander'Oxford English Dictionary, s.v. “error (n.), Etymology,” September 2023,.) is an inaccurate or incorrect action, thought, or judgement.

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Faroe Islands

The Faroe or Faeroe Islands, or simply the Faroes (Føroyar,; Færøerne), are an archipelago in the North Atlantic Ocean and an autonomous territory of the Kingdom of Denmark.

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Frame of reference

In physics and astronomy, a frame of reference (or reference frame) is an abstract coordinate system whose origin, orientation, and scale are specified by a set of reference points―geometric points whose position is identified both mathematically (with numerical coordinate values) and physically (signaled by conventional markers).

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France

France, officially the French Republic, is a country located primarily in Western Europe.

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Geodesy

Geodesy or geodetics is the science of measuring and representing the geometry, gravity, and spatial orientation of the Earth in temporally varying 3D.

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Geodetic control network

A geodetic control network is a network, often of triangles, that are measured precisely by techniques of control surveying, such as terrestrial surveying or satellite geodesy. Retriangulation of Great Britain and geodetic control network are geodetic surveys.

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Geodetic datum

A geodetic datum or geodetic system (also: geodetic reference datum, geodetic reference system, or geodetic reference frame) is a global datum reference or reference frame for precisely representing the position of locations on Earth or other planetary bodies by means of geodetic coordinates.

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Geoid

The geoid is the shape that the ocean surface would take under the influence of the gravity of Earth, including gravitational attraction and Earth's rotation, if other influences such as winds and tides were absent.

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George Biddell Airy

Sir George Biddell Airy (27 July 18012 January 1892) was an English mathematician and astronomer, as well as the Lucasian Professor of Mathematics from 1826 to 1828 and the seventh Astronomer Royal from 1835 to 1881.

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Gravelines

Gravelines is a commune in the Nord department in Northern France.

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Great Britain

Great Britain (commonly shortened to Britain) is an island in the North Atlantic Ocean off the north-west coast of continental Europe, consisting of the countries England, Scotland and Wales.

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Great Whernside

Great Whernside is a fell in the Yorkshire Dales, England, not to be confused with Whernside, some to the west.

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Greenland

Greenland (Kalaallit Nunaat,; Grønland) is a North American island autonomous territory of the Kingdom of Denmark.

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Hellisøy Lighthouse

Hellisøy Lighthouse (Hellisøy fyr) is a coastal lighthouse in Fedje municipality in Vestland county, Norway.

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Hill of Tara

The Hill of Tara (Teamhair or Cnoc na Teamhrach) is a hill and ancient ceremonial and burial site near Skryne in County Meath, Ireland.

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Holyhead

Holyhead (Caergybi, "Cybi's fort") is the largest town and a community in the county of Isle of Anglesey, Wales, with a population of 13,659 at the 2011 census.

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Home counties

The home counties are the counties of England that surround London.

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Iceland

Iceland (Ísland) is a Nordic island country between the North Atlantic and Arctic Oceans, on the Mid-Atlantic Ridge between North America and Europe.

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Institut national de l'information géographique et forestière

The (National Institute of Geographic and Forest Information), previously (National Geographic Institute) or IGN, is a French public state administrative establishment founded in 1940 to produce and maintain geographical information for France and its overseas departments and territories.

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Irish Sea

The Irish Sea is a body of water that separates the islands of Ireland and Great Britain.

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Isle of Man

The Isle of Man (Mannin, also Ellan Vannin) or Mann, is an island country and self-governing British Crown Dependency in the Irish Sea, between Great Britain and Ireland.

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Isle of Wight

The Isle of Wight (/waɪt/ ''WYTE'') is an island, English county and unitary authority in the English Channel, off the coast of Hampshire, across the Solent.

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Kilometre

The kilometre (SI symbol: km; or), spelt kilometer in American English and Philippine English, is a unit of length in the International System of Units (SI), equal to one thousand metres (kilo- being the SI prefix for). It is the preferred measurement unit to express distances between geographical places on land in most of the world; notable exceptions are the United States and the United Kingdom where the statute mile is used.

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Kippure

Kippure at, is the 56th-highest peak in Ireland on the Arderin scale, and the 72nd-highest peak on the Vandeleur-Lynam scale.

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Latitude

In geography, latitude is a coordinate that specifies the north–south position of a point on the surface of the Earth or another celestial body.

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Least-squares adjustment

Least-squares adjustment is a model for the solution of an overdetermined system of equations based on the principle of least squares of observation residuals.

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Liddington Castle

Liddington Castle, locally called Liddington Camp, is a late Bronze Age and early Iron Age univallate hillfort in Liddington parish in the English county of Wiltshire, and a scheduled monument.

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Line (geometry)

In geometry, a straight line, usually abbreviated line, is an infinitely long object with no width, depth, or curvature, an idealization of such physical objects as a straightedge, a taut string, or a ray of light.

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List of islands of Scotland

This is a list of islands of Scotland, the mainland of which is part of the island of Great Britain.

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London

London is the capital and largest city of both England and the United Kingdom, with a population of in.

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Longitude

Longitude is a geographic coordinate that specifies the east–west position of a point on the surface of the Earth, or another celestial body.

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Lossiemouth

Lossiemouth (Inbhir Losaidh) is a town in Moray, Scotland.

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Malcolm MacLeod (British Army officer)

Major-General Malcolm Neynoe MacLeod (23 May 1882 – 1 August 1969) was Director General of the Ordnance Survey from 1935 to 1943.

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Map

A map is a symbolic depiction emphasizing relationships between elements of some space, such as objects, regions, or themes.

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Map projection

In cartography, a map projection is any of a broad set of transformations employed to represent the curved two-dimensional surface of a globe on a plane.

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Map symbol

A map symbol or cartographic symbol is a graphical device used to visually represent a real-world feature on a map, working in the same fashion as other forms of symbols.

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Martin Hotine

Brigadier Martin Hotine CMG CBE (17 June 1898 – 12 November 1968) was the head of the Trigonometrical and Levelling Division of the Ordnance Survey responsible for the 26-year-long retriangulation of Great Britain (1936–1962) and was the first Director General of the Directorate of Overseas Surveys (1946–1955).

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Minute and second of arc

A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol, is a unit of angular measurement equal to of one degree.

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Moray Firth

The Moray Firth (An Cuan Moireach, Linne Mhoireibh or Caolas Mhoireibh) is a roughly triangular inlet (or firth) of the North Sea, north and east of Inverness, which is in the Highland council area of the north of Scotland.

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Mormond Hill

Mormond Hill (from Gaelic Mórmhonadh, "big hill") is a broad eminence in Aberdeenshire, Scotland, not far from Fraserburgh.

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North American Datum

The North American Datum (NAD) is the horizontal datum now used to define the geodetic network in North America.

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North Sea

The North Sea lies between Great Britain, Denmark, Norway, Germany, the Netherlands, Belgium and France.

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Northern Ireland

Northern Ireland (Tuaisceart Éireann; Norlin Airlann) is a part of the United Kingdom in the north-east of the island of Ireland that is variously described as a country, province or region.

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Northern Isles

The Northern Isles (Northern Isles; Na h-Eileanan a Tuath; Norðreyjar; Nordøjar) are a chain (or archipelago) of islands off the north coast of mainland Scotland.

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Norway

Norway (Norge, Noreg), formally the Kingdom of Norway, is a Nordic country in Northern Europe, situated on the Scandinavian Peninsula.

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Office of Public Sector Information

The Office of Public Sector Information (OPSI) is the body responsible for the operation of His Majesty's Stationery Office (HMSO) and of other public information services of the United Kingdom.

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Ordnance Survey

The Ordnance Survey (OS) is the national mapping agency for Great Britain. Retriangulation of Great Britain and Ordnance Survey are geography of Great Britain and surveying of the United Kingdom.

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Ordnance Survey Ireland

Ordnance Survey Ireland (OSI; Suirbhéireacht Ordanáis Éireann) was the national mapping agency of the Republic of Ireland.

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Ordnance Survey National Grid

The Ordnance Survey National Grid reference system (OSGB), also known as British National Grid (BNG), is a system of geographic grid references, distinct from latitude and longitude, whereby any location in Great Britain can be described in terms of its distance from the origin (0, 0), which lies to the west of the Isles of Scilly. Retriangulation of Great Britain and Ordnance Survey National Grid are surveying of the United Kingdom.

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Orkney

Orkney (Orkney; Orkneyjar; Orknøjar), also known as the Orkney Islands (archaically "The Orkneys"), is an archipelago off the north coast of Scotland.

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Outer Hebrides

The Outer Hebrides or Western Isles (na h-Eileanan Siar, na h-Eileanan an Iar or label; Waster Isles), sometimes known as the Long Isle or Long Island (an t-Eilean Fada), is an island chain off the west coast of mainland Scotland.

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Paddlesworth

Paddlesworth is a hamlet and parish located about 3 miles (4.8 km) NNW of Folkestone in Kent, England, near Hawkinge.

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Parasitic jaeger

The parasitic jaeger (North America) or Arctic skua (Europe) (Stercorarius parasiticus), is a seabird in the skua family Stercorariidae.

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Principal Triangulation of Great Britain

The Principal Triangulation of Britain was the first high-precision triangulation survey of the whole of Great Britain and Ireland, carried out between 1791 and 1853 under the auspices of the Board of Ordnance. Retriangulation of Great Britain and Principal Triangulation of Great Britain are geodetic surveys and surveying of the United Kingdom.

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Projected coordinate system

A projected coordinate systemalso called a projected coordinate reference system, planar coordinate system, or grid reference systemis a type of spatial reference system that represents locations on Earth using Cartesian coordinates (x, y) on a planar surface created by a particular map projection.

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Radiolocation

Radiolocation, also known as radiolocating or radiopositioning, is the process of finding the location of something through the use of radio waves.

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Rosebush, Pembrokeshire

Rosebush (Welsh: Rhos-y-bwlch) is a small village in the community of Maenclochog, Pembrokeshire, southwest Wales, UK.

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Royal Tunbridge Wells

Royal Tunbridge Wells is a town in Kent, England, southeast of central London.

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RRH Saxa Vord

Remote Radar Head Saxa Vord or RRH Saxa Vord (aka RAF Saxa Vord), is a Royal Air Force radar station located on the island of Unst, the most northern of the Shetland Islands in Scotland.

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Saint-Inglevert

Saint-Inglevert (Santingeveld) is a commune in the Pas-de-Calais department in the Hauts-de-France region of France.

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Scale (map)

The scale of a map is the ratio of a distance on the map to the corresponding distance on the ground.

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Scottish Highlands

The Highlands (the Hielands; a' Ghàidhealtachd) is a historical region of Scotland.

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Shetland

Shetland, also called the Shetland Islands, is an archipelago in Scotland lying between Orkney, the Faroe Islands, and Norway.

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SHORAN

SHORAN is an acronym for SHOrt RAnge Navigation, a type of electronic navigation and bombing system using a precision radar beacon.

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Slieve Donard

Slieve Donard is the highest mountain in Northern Ireland, the highest in Ulster and the seventh-highest in Ireland, with a height of.

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Smog

Smog, or smoke fog, is a type of intense air pollution.

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South Barrule

The South Barrule (Baarool Jiass) is the highest hill in the south of the Isle of Man.

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Southampton

Southampton is a port city in Hampshire, England.

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Spheroid

A spheroid, also known as an ellipsoid of revolution or rotational ellipsoid, is a quadric surface obtained by rotating an ellipse about one of its principal axes; in other words, an ellipsoid with two equal semi-diameters.

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Strait of Dover

The Strait of Dover or Dover Strait (Pas de Calais - Strait of Calais) is the strait at the narrowest part of the English Channel, marking the boundary between the Channel and the North Sea, and separating Great Britain from continental Europe.

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The Lizard

The Lizard (An Lysardh) is a peninsula in southern Cornwall, England, United Kingdom.

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Theodolite

A theodolite is a precision optical instrument for measuring angles between designated visible points in the horizontal and vertical planes.

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Transverse Mercator projection

The transverse Mercator map projection (TM, TMP) is an adaptation of the standard Mercator projection.

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Traverse (surveying)

Traverse is a method in the field of surveying to establish control networks.

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Triangulation

In trigonometry and geometry, triangulation is the process of determining the location of a point by forming triangles to the point from known points. Retriangulation of Great Britain and triangulation are angle.

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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. Retriangulation of Great Britain and triangulation (surveying) are angle and geodetic surveys.

See Retriangulation of Great Britain and Triangulation (surveying)

References

[1] https://en.wikipedia.org/wiki/Retriangulation_of_Great_Britain

, Least-squares adjustment, Liddington Castle, Line (geometry), List of islands of Scotland, London, Longitude, Lossiemouth, Malcolm MacLeod (British Army officer), Map, Map projection, Map symbol, Martin Hotine, Minute and second of arc, Moray Firth, Mormond Hill, North American Datum, North Sea, Northern Ireland, Northern Isles, Norway, Office of Public Sector Information, Ordnance Survey, Ordnance Survey Ireland, Ordnance Survey National Grid, Orkney, Outer Hebrides, Paddlesworth, Parasitic jaeger, Principal Triangulation of Great Britain, Projected coordinate system, Radiolocation, Rosebush, Pembrokeshire, Royal Tunbridge Wells, RRH Saxa Vord, Saint-Inglevert, Scale (map), Scottish Highlands, Shetland, SHORAN, Slieve Donard, Smog, South Barrule, Southampton, Spheroid, Strait of Dover, The Lizard, Theodolite, Transverse Mercator projection, Traverse (surveying), Triangulation, Triangulation (surveying), Triangulation station, Trilateration, Trostan, United States Air Force, United States Coast and Geodetic Survey, Universal Transverse Mercator coordinate system, Wexford, Whitehorse Hill, World War II.

Retriangulation of Great Britain, the Glossary

Table of Contents

See also

Geodetic surveys

Geography of Great Britain

Surveying of the United Kingdom

References