• Thumbnail for World Geodetic System
    World Geodetic System (redirect from WGS 84)
    Geodetic System (WGS) is a standard used in cartography, geodesy, and satellite navigation including GPS. The current version, WGS 84, defines an Earth-centered...
    24 KB (2,843 words) - 13:14, 5 October 2024
  • Thumbnail for Geodetic datum
    system (GPS), the ellipsoid and datum WGS 84 it uses has supplanted most others in many applications. The WGS 84 is intended for global use, unlike most...
    31 KB (3,346 words) - 06:28, 11 August 2024
  • used by the Chinese State Bureau of Surveying and Mapping, and based on WGS-84. It uses an obfuscation algorithm which adds apparently random offsets to...
    29 KB (2,999 words) - 18:33, 31 July 2024
  • Thumbnail for Geographic coordinate system
    of the Earth. Examples of global datums include World Geodetic System (WGS 84, also known as EPSG:4326), the default datum used for the Global Positioning...
    22 KB (2,491 words) - 14:18, 29 October 2024
  • Thumbnail for Web Mercator projection
    Web Mercator, Google Web Mercator, Spherical Mercator, WGS 84 Web Mercator or WGS 84/Pseudo-Mercator is a variant of the Mercator map projection and is...
    16 KB (1,712 words) - 00:20, 1 September 2024
  • Thumbnail for ED50
    Earth and was widely used around the world until the 1980s when GRS 80 and WGS 84 were established. Many national coordinate systems of Gauss–Krüger are defined...
    8 KB (927 words) - 23:56, 8 June 2024
  • Thumbnail for Earth radius
    whole. The following radii are derived from the World Geodetic System 1984 (WGS-84) reference ellipsoid. It is an idealized surface, and the Earth measurements...
    42 KB (4,383 words) - 12:40, 3 September 2024
  • Thumbnail for Ordnance Survey National Grid
    2° 0′ 5″ W (WGS 84). A geodetic transformation between OSGB 36 and other terrestrial reference systems (like ITRF2000, ETRS89, or WGS 84) can become quite...
    19 KB (2,177 words) - 07:38, 19 August 2024
  • Thumbnail for North American Datum
    83(1986) is based on the GRS 80 spheroid, as was WGS 84, so many older publications indicate no difference. WGS 84 subsequently changed to a slightly less flattened...
    13 KB (1,613 words) - 23:36, 12 September 2024
  • Thumbnail for Spatial reference system
    particular SRS specification (for example, "Universal Transverse Mercator WGS 84 Zone 16N") comprises a choice of Earth ellipsoid, horizontal datum, map...
    15 KB (1,570 words) - 00:35, 6 September 2024
  • Thumbnail for Earth-centered, Earth-fixed coordinate system
    that is used for the Global Positioning System (GPS) is the geocentric WGS 84, which currently includes its own ellipsoid definition. Other local datums...
    9 KB (904 words) - 15:59, 18 September 2024
  • Thumbnail for International Terrestrial Reference System and Frame
    other realization of the ITRF. The difference between the latest as of 2006 WGS 84 (frame realisation G1150) and the latest ITRF2000 is only a few centimeters...
    9 KB (777 words) - 16:49, 25 May 2024
  • Thumbnail for Earth ellipsoid
    have been adopted also for all modern reference ellipsoids. The ellipsoid WGS-84, widely used for mapping and satellite navigation has f close to 1/300 (more...
    19 KB (2,379 words) - 05:58, 11 September 2024
  • Thumbnail for Meridian (geography)
    Earth quadrant, equal to 20,003.93 km (12,429.87 mi) on a modern ellipsoid (WGS 84). The first prime meridian was set by Eratosthenes in 200 BC. This prime...
    18 KB (2,279 words) - 15:05, 31 October 2024
  • Harpoon missile WGS 84 - The latest revision of the World Geodetic System, a fixed global reference frame for the Earth. The house number of 84 Avenue Foch...
    6 KB (934 words) - 14:22, 25 October 2024
  • the world, WGS 84). Baidu alleges that adopting BD-09 "protects users' privacy". The Baidu Maps API documentation specifies that "real" (WGS 84) GPS coordinates...
    15 KB (1,068 words) - 03:21, 7 August 2024
  • Thumbnail for Geo URI scheme
    define the use of CRSes other than WGS-84. This is primarily intended to cope with the case of another CRS replacing WGS-84 as the predominantly used one,...
    14 KB (1,856 words) - 02:58, 9 October 2024
  • include waypoints, routes, and tracks: A waypoint (wptType) consists of the WGS 84 (GPS) coordinates of a point and possibly other descriptive information...
    6 KB (577 words) - 02:24, 5 September 2024
  • Thumbnail for Prime meridian (Greenwich)
    establishment of reference meridians for space-based location systems such as WGS-84 (which the GPS relies on) or to the fact that errors gradually crept into...
    14 KB (1,509 words) - 22:58, 16 September 2024
  • Thumbnail for Equator
    meeting of 1979 has an equatorial radius of 6,378.137 km (3,963.191 mi). The WGS 84 (World Geodetic System 1984) which is a standard for use in cartography...
    32 KB (2,392 words) - 08:56, 20 September 2024
  • Thumbnail for IERS Reference Meridian
    Positioning System (GPS) operated by the United States Space Force, and of WGS 84 and its two formal versions, the ideal International Terrestrial Reference...
    13 KB (780 words) - 15:48, 29 August 2024
  • global datums, such as WGS 84. The standard NIMA TM 8350.2, Appendix D, lists MRE transforms from several local datums to WGS 84, with accuracies of about...
    34 KB (5,200 words) - 08:18, 10 August 2024
  • Thumbnail for List of U.S. states and territories by elevation
    geographic coordinates are adjusted to the World Geodetic System of 1984 (WGS 84). The mean elevation for each state, the District of Columbia, and Puerto...
    48 KB (3,102 words) - 00:25, 23 October 2024
  • Thumbnail for List of extreme points of Japan
    sourced from Google Earth, which makes use of the World Geodetic System (WGS84. The northernmost point that Japan claims lies on the disputed island of...
    13 KB (593 words) - 14:13, 2 July 2024
  • Thumbnail for Earth's circumference
    Geographical mile Arabic mile Humerfelt, Sigurd (26 October 2010). "How WGS 84 defines Earth". Archived from the original on 24 April 2011. Retrieved 29...
    21 KB (2,446 words) - 17:23, 24 September 2024
  • Thumbnail for Earth Gravitational Model
    spherical harmonics. XGM2020 was also released recently. ETRS89 NAD83 "WGS 84 Earth Gravitational Model". earth-info.nga.mil. Archived from the original...
    11 KB (1,292 words) - 22:16, 11 September 2024
  • Thumbnail for Geoid
    geodesy Planetary geoid Areoid (Mars's geoid) Selenoid (Moon's geoid) "WGS 84, N=M=180 Earth Gravitational Model". NGA: Office of Geomatics. National...
    29 KB (3,435 words) - 20:05, 26 October 2024
  • Thumbnail for Figure of the Earth
    geodesy, generally it is expressed by its reciprocal. For example, in the WGS 84 spheroid used by today's GPS systems, the reciprocal of the flattening 1...
    24 KB (2,899 words) - 18:01, 21 October 2024
  • any other location on the continent. Geographic coordinates expressed in WGS 84. Africa Northernmost point — Iles des Chiens, Tunisia (37°32'N) Southernmost...
    3 KB (256 words) - 04:17, 20 October 2024
  • maps of China use the GCJ-02 coordinate system, which is offset from the WGS-84 system used in most of the world. google.cn/maps (formerly Google Ditu)...
    152 KB (13,060 words) - 13:12, 31 October 2024