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Jul 1, 2022 · There are two main types of

**coordinate****systems**for georeferenced data:**Geographic****Coordinate****Systems**(GCS) based on latitude and longitude. A**Geographic Coordinate System**is a 3D reference**system**that uses latitude and longitude to define the location of a point on the Earth’s surface.**Latitude and longitude**,**coordinate****system**by means of which the position or location of any place on Earth’s surface can be determined and described. Latitude is a measurement of location north or south of the Equator. Longitude is a similar measurement east or west of the Greenwich meridian.**Geographic****coordinate****systems**are based on a three-dimensional ellipsoidal or spherical surface, and locations are defined using angular measurements, usually in decimal degrees, measuring degrees of longitude (x-**coordinates**) and degrees of latitude (y-**coordinates**).SHOW ALL QUESTIONS. The

**geographic coordinate system**( GCS) is a spherical or geodetic**coordinate****system**for measuring and communicating positions directly on the Earth as latitude and longitude. It is the simplest, oldest and most widely used of the various spatial reference**systems**that are in use, and forms the basis for most others.**Geographic****coordinate****systems**are spherical models of the earth. They are curved surfaces measured in divisions of latitude and longitude with typically units of degrees (decimal degrees or degrees minutes seconds which divide a full circle into 360 parts).May 21, 2023 · The

**coordinate****system**used to define locations on the three-dimensional earth is the**geographic coordinate system**(GCS), based on a sphere or spheroid. A spheroid (a.k.a. ellipsoid) is simply a slightly wider sphere than it is tall and approximates the actual shape of the earth more closely.Oct 5, 2018 · A

**geographic coordinate system**(GCS) defines locations on the earth using a three-dimensional spherical surface [1], it is a reference**system**that uses latitude and longitude to identify locations on a spheroid or sphere. A datum, prime meridian, and angular unit are parts of a GCS [2] .