• Thumbnail for World Geodetic System
    The World Geodetic System (WGS) is a standard used in cartography, geodesy, and satellite navigation including GPS. The current version, WGS 84, defines...
    24 KB (2,842 words) - 03:41, 26 April 2025
  • Thumbnail for Geodetic datum
    A geodetic datum or geodetic system (also: geodetic reference datum, geodetic reference system, or geodetic reference frame, or terrestrial reference...
    32 KB (3,377 words) - 03:19, 15 May 2025
  • Thumbnail for Geodetic Reference System 1980
    The Geodetic Reference System 1980 (GRS80) consists of a global reference ellipsoid and a normal gravity model. The GRS80 gravity model has been followed...
    7 KB (1,078 words) - 12:07, 24 August 2024
  • Thumbnail for Geodesy
    Geodesy (redirect from Geodetics)
    and terrestrial geodetic techniques, and relying on datums and coordinate systems. Geodetic job titles include geodesist and geodetic surveyor. Geodesy...
    38 KB (4,261 words) - 06:28, 6 May 2025
  • Thumbnail for Geographic coordinate system
    A geographic coordinate system (GCS) is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude...
    23 KB (2,540 words) - 22:18, 14 May 2025
  • Thumbnail for Earth-centered, Earth-fixed coordinate system
    Retrieved December 25, 2018. National Geospatial Intelligence Agency. "World Geodetic System 1984 datasheet" (PDF). United Nations Office for Outer Space Affairs...
    9 KB (912 words) - 16:39, 14 December 2024
  • Thumbnail for Spatial reference system
    geographic coordinates (latitude and longitude). Examples include the World Geodetic System and the 1927 and 1983 North American Datum. A datum generally consists...
    15 KB (1,570 words) - 12:19, 7 May 2025
  • Thumbnail for EPSG Geodetic Parameter Dataset
    EPSG Geodetic Parameter Dataset (also EPSG registry) is a public registry of geodetic datums, spatial reference systems, Earth ellipsoids, coordinate transformations...
    5 KB (444 words) - 20:42, 28 January 2025
  • Thumbnail for Hellenic Geodetic Reference System 1987
    The Hellenic Geodetic Reference System 1987 or HGRS87 (Greek: Ελληνικό Γεωδαιτικό Σύστημα Αναφοράς 1987 or ΕΓΣΑ'87) is a geodetic system commonly used...
    7 KB (827 words) - 10:33, 27 October 2024
  • Thumbnail for European Terrestrial Reference System 1989
    The European Terrestrial Reference System 1989 (ETRS89) is an ECEF (Earth-Centered, Earth-Fixed) geodetic Cartesian reference frame, in which the Eurasian...
    6 KB (615 words) - 22:40, 28 February 2025
  • Thumbnail for Military Grid Reference System
    also known as MGRS-New, which is used for WGS84 and some other modern geodetic datums, the letter for the first row – just north of the equator – is A...
    15 KB (2,136 words) - 19:17, 1 June 2025
  • Thumbnail for Spherical coordinate system
    of latitude, longitude and altitude are currently defined by the World Geodetic System (WGS), and take into account the flattening of the Earth at the...
    43 KB (6,355 words) - 20:55, 14 April 2025
  • Thumbnail for Universal Transverse Mercator coordinate system
    Ellipsoid was used. The World Geodetic System WGS84 ellipsoid is now generally used to model the Earth in the UTM coordinate system, which means current...
    18 KB (2,858 words) - 13:14, 29 May 2025
  • Thumbnail for Web Mercator projection
    Web Mercator projection (category Geographic coordinate systems)
    MEMBER["World Geodetic System 1984 (Transit)", ID["EPSG",1166]], MEMBER["World Geodetic System 1984 (G730)", ID["EPSG",1152]], MEMBER["World Geodetic System 1984...
    16 KB (1,712 words) - 13:28, 25 May 2025
  • Thumbnail for Spherical Earth
    Spherical Earth (redirect from Round World)
    (Delambre, Everest). The modern value as determined by the US DoD World Geodetic System since the 1960s is close to 1/298.25. The scientific study of the...
    17 KB (1,903 words) - 15:49, 14 May 2025
  • Thumbnail for Satellite geodesy
    worldwide triangulation networks allowed for the establishment of the World Geodetic System. The development of GPS by the United States in the 1980s allowed...
    21 KB (2,338 words) - 10:15, 25 November 2024
  • Thumbnail for Earth radius
    Center. "Department of Defense World Geodetic System 1984: Its Definition and Relationships with Local Geodetic Systems". Retrieved 2018-10-17. "Info"...
    42 KB (4,474 words) - 20:57, 9 June 2025
  • Geographic coordinate conversion (category Geographic coordinate systems)
    of geographic coordinates, conversion of coordinate systems, or transformation to different geodetic datums. Geographic coordinate conversion has applications...
    34 KB (5,207 words) - 08:18, 10 August 2024
  • Earth Geodesy Earth's circumference Earth's radius Geodetic datum History of geodesy World Geodetic System Ancient units of length such as the cubit, stadion...
    29 KB (1,683 words) - 18:50, 15 June 2025
  • Thumbnail for Earth ellipsoid
    TR8350.2, "Department of Defense World Geodetic System 1984, Its Definition and Relationships With Local Geodetic Systems", Third Edition, 4 July 1997 [1]...
    24 KB (2,826 words) - 18:03, 25 May 2025
  • Thumbnail for Geoid
    position, the height of the geoid (e.g., the EGM96 geoid) over the World Geodetic System (WGS) ellipsoid. They are then able to correct the height above...
    29 KB (3,445 words) - 01:09, 2 June 2025
  • Thumbnail for BeiDou
    China and the EU. In November 2014, BeiDou became part of the World-Wide Radionavigation System (WWRNS) at the 94th meeting of the International Maritime...
    68 KB (5,866 words) - 01:18, 2 June 2025
  • Thumbnail for Projected coordinate system
    map projection (with specific parameters), a choice of geodetic datum to bind the coordinate system to real locations on the earth, an origin point, and...
    21 KB (2,805 words) - 00:44, 11 June 2025
  • reference for the determining of locators should be based on the World Geodetic System 1984 (WGS-84). A Maidenhead locator compresses latitude and longitude...
    16 KB (1,933 words) - 23:59, 7 June 2025
  • Thumbnail for Moriya, Ibaraki
    District on April 1, 1889 with the creation of the modern municipalities system. It was elevated to city status February 2, 2002. Moriya has a mayor-council...
    11 KB (835 words) - 16:41, 5 January 2025
  • Thumbnail for International Terrestrial Reference System and Frame
    coordinate system Earth orientation parameters Geodetic datum International Celestial Reference System and its realizations Terrestrial reference frame World Geodetic...
    9 KB (783 words) - 11:33, 25 February 2025
  • Thumbnail for Geodetic airframe
    A geodetic airframe is a type of construction for the airframes of aircraft developed by British aeronautical engineer Barnes Wallis in the 1930s (who...
    9 KB (934 words) - 01:56, 4 May 2025
  • Thumbnail for Geographic information system
    like North American Datum of 1983 for U.S. measurements, and the World Geodetic System for worldwide measurements. The latitude and longitude on a map...
    103 KB (13,339 words) - 13:57, 13 June 2025
  • Thumbnail for Spheroid
    known as the reference ellipsoid, instead of a sphere. The current World Geodetic System model uses a spheroid whose radius is 6,378.137 km (3,963.191 mi)...
    15 KB (2,094 words) - 03:00, 12 June 2025
  • Thumbnail for OpenCRG
    visualization of OpenCRG data. Real world OpenCRG data files may be generated by several laser scans along a road. World geodetic system coordinates (WGS84), as used...
    10 KB (977 words) - 17:35, 23 December 2023