Norge 1:50 000 (Norway 1:50 000) is the main series of 727 topographical maps in 1:50,000 scale that cover the entire mainland area of Norway and proximate islands. The civilian designation is Norway 1:50 000 and the military designation is M711.
The military series includes 727 maps. The production of the map series was begun in 1952, and the series was completed for whole Norway in 1988. The maps are subject to ongoing revision, and about 60 maps are issued in new release each year. From 2012, a civilian series printed on plastic sheets on both sides and in a larger format were produced. Each map sheet is now equivalent to four different maps in the military series. The civilian series include 212 different maps.
Statens kartverk (Norwegian Mapping Authority), the governmental cartography office, is responsible for updating and maintaining the maps. The geodetic datum of the series is EUREF89 (European Reference Frame 1989), which is approximately equal to WGS84 (World Geodetic System 1984). The maps are in full color, complete with place names and political boundaries. Contour line spacing is 20meters (66ft), and the maps are usable for hiking and other navigation.
The maps are available for sale in most bookstores, though it may vary how complete their collection is.
In modern mapping, a topographic map or topographic sheet is a type of map characterized by large-scale detail and quantitative representation of relief features, usually using contour lines, but historically using a variety of methods. Traditional definitions require a topographic map to show both natural and artificial features. A topographic survey is typically based upon a systematic observation and published as a map series, made up of two or more map sheets that combine to form the whole map. A topographic map series uses a common specification that includes the range of cartographic symbols employed, as well as a standard geodetic framework that defines the map projection, coordinate system, ellipsoid and geodetic datum. Official topographic maps also adopt a national grid referencing system.
The National Topographic System or NTS is the system used by Natural Resources Canada for providing general purpose topographic maps of the country. NTS maps are available in a variety of scales, the standard being 1:50,000 and 1:250,000 scales. The maps provide details on landforms and terrain, lakes and rivers, forested areas, administrative zones, populated areas, roads and railways, as well as other human-made features. These maps are currently used by all levels of government and industry for forest fire and flood control, depiction of crop areas, right-of-way, real estate planning, development of natural resources and highway planning. To add context, land area outside Canada is depicted on the 1:250,000 maps, but not on the 1:50,000 maps.
A geologic map or geological map is a special-purpose map made to show various geological features. Rock units or geologic strata are shown by color or symbols. Bedding planes and structural features such as faults, folds, are shown with strike and dip or trend and plunge symbols which give three-dimensional orientations features.
Swisstopo is the official name for the Swiss Federal Office of Topography, Switzerland's national mapping agency.
The Norwegian Mapping Authority (NMA) is Norway's national mapping agency, dealing with land surveying, geodesy, hydrographic surveying, cadastre and cartography. The current director is Johnny Welle. Its headquarters are in Hønefoss and it is a public agency under the Ministry of Local Government and Regional Development. NMA was founded in 1773.
The Royal Australian Survey Corps was a Corps of the Australian Army, formed on 1 July 1915 and disbanded on 1 July 1996. As one of the principal military survey units in Australia, the role of the Royal Australian Survey Corps was to provide the maps, aeronautical charts, hydrographical charts and geodetic and control survey data required for land combat operations.
The Survey of Bangladesh (SOB) is the national mapping authority of Bangladesh. The agency functions under the Ministry of Defence and is headed by the Surveyor General of Bangladesh who is usually a Brigadier General rank officer from the Corps of Engineers of Bangladesh Army.
The Instituto Geográfico Nacional (IGN), or National Geographic Institute is a Spanish government agency, dependent on the Spanish Ministry of Public Works. It is the national mapping agency for Spain, together with the Centro Nacional de Información Geográfica (CNIG).
Ordnance Survey (OS) is the national mapping agency for Great Britain. The agency's name indicates its original military purpose, which was to map Scotland in the wake of the Jacobite rising of 1745. There was also a more general and nationwide need in light of the potential threat of invasion during the Napoleonic Wars. Since 1 April 2015, Ordnance Survey has operated as Ordnance Survey Ltd, a government-owned company, 100% in public ownership. The Ordnance Survey Board remains accountable to the Secretary of State for Business and Trade. It was also a member of the Public Data Group.
A national mapping agency is an organisation, usually publicly owned, that produces topographic maps and geographic information of a country. Some national mapping agencies also deal with cadastral matters.
The Hellenic Military Geographical Service or HMGS, is the Hellenic Military's mapping agency.
The Ethiopia-United States Mapping Mission, also known as the Ethi-U.S. Mapping Mission, was an operation undertaken by the United States Army during the 1960s to provide up-to-date topographic map coverage of the entire country of Ethiopia. The soldiers who conducted the mapping operations on the ground during that time used the latest surveying and mapping techniques and were exposed to many hardships and dangers, but they completed their mission near the end of the decade. The maps that were created still serve as the base maps for the country of Ethiopia and are presently being updated and maintained by the Ethiopian Mapping Authority.
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. It is now chaired by David Applegate.
A map series is a group of topographic or thematic charts or maps usually having the same scale and cartographic specifications, and with each sheet appropriately identified by its publisher as belonging to the same series.
The Hellenic Geodetic Reference System 1987 or HGRS87 is a geodetic system commonly used in Greece (SRID=2100). The system specifies a local geodetic datum and a projection system. In some documents it is called Greek Geodetic Reference System 1987 or GGRS87.
The Geospatial Information Authority of Japan, or GSI, is the national institution responsible for surveying and mapping the national land of Japan. The former name of the organization from 1949 until March 2010 was Geographical Survey Institute; despite the rename, it retains the same initials. It is an extraordinary organ of the Ministry of Land, Infrastructure, Transport and Tourism. Its main offices are situated in Tsukuba City of Ibaraki Prefecture.
Survey of Israel - SOI is the survey and mapping department of the Israeli Ministry of Housing and Construction. It is the successor of the Survey Department of Palestine, established by the British Mandate authorities in 1920.
Survey of Pakistan is the sole national mapping and land surveying government agency of Pakistan. Its head of department is titles as "Surveyor General of Pakistan".
The Army Map Service (AMS) was the military cartographic agency of the United States Department of Defense from 1941 to 1968, subordinated to the United States Army Corps of Engineers. On September 1, 1968, the AMS was redesignated the U.S. Army Topographic Command (USATC) and continued as an independent organization until January 1, 1972, when it was merged into the new Defense Mapping Agency (DMA) and redesignated as the DMA Topographic Center (DMATC). On October 1, 1996, DMA was folded into the National Imagery and Mapping Agency (NIMA), which was redesignated as the National Geospatial-Intelligence Agency (NGA) in 2003.
8 Field Survey Squadron was a unit of the Australian Army and the Royal Australian Survey Corps, being raised in December 1971 at Popondetta, Territory of Papua New Guinea and disbanded twenty-four years later on 1 December 1995 in Port Moresby, Papua New Guinea (PNG). The squadron's initial role was to establish geodetic survey control, establish topographic survey control for mapping, compile and field complete preliminary topographic maps, and conduct other surveys and mapping including acquiring air photography. In 1980 the role changed to provide support and advice to the PNG Defence Force and PNG National Mapping Bureau on all aspects of survey and mapping and to provide liaison support for Australian based survey units on operations in the country.
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