WGS84

Global positioning datum

WGS84 is the World Geodetic System established in 1984, the coordinate reference system used by GPS and most digital mapping.

It defines Earth's shape, size, and gravitational field, providing the mathematical framework for expressing any location on the planet as latitude and longitude.

When your phone shows your position, it's using WGS84 coordinates.

geodetic

ellipsoid

Oval solid shape

  • geoidGravitational equipotential surface model
  • datumSingle unit of information
  • geodeticOf Earth measurement science

reference · geocentric · gravimetry · triangulation · benchmark · leveling · azimuth · precision · accuracy · survey

coordinates

latitude

Geographic or personal freedom

meridian · prime meridian · equator · Greenwich · hemisphere · geographic · minutes · seconds · easting · northing

satellite

GPS

Satellite-based location technology

positioning · receiver · orbit · ephemeris · signal · tracking · waypoint · geolocation · geofencing · constellation

mapping

cartography

Creating geographic representations

geospatial · basemap · raster · vector · layer · spatial · georeferencing · ArcGIS · OpenStreetMap · tile

Categories
Opposites
geographic scope

WGS84national grid

Nationwide electrical distribution network

local · small · specific

earth model

WGS84Cartesian plane

Two-dimensional plotting surface

UTM · Mercator projection

Familiarity
Top 2,000,000
Profile
Used worldwide · Timeless · Abstract · Rated G