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  1. A geographic coordinate system ( GCS) is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude and longitude. [1] 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.

    • Geodetic Datum

      A geodetic datum or geodetic system (also: geodetic...

    • Decimal Degrees

      Decimal degrees (DD) is a notation for expressing latitude...

  2. A geographical coordinate system is a coordinate system. This means that every place can be specified by three sets of three numbers, called coordinates. A full circle can be divided into 360 degrees (or 360°); this was first done by the Babylonians; Ancient Greeks, like Ptolemy later extended the theory. Today, degrees are divided further.

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  4. Geographic coordinate conversion has applications in cartography, surveying, navigation and geographic information systems. In geodesy, geographic coordinate conversion is defined as translation among different coordinate formats or map projections all referenced to the same geodetic datum.

  5. Feb 14, 2013 · Description and Background. The National Geospatial-Intelligence Agency’s (NGA) MSP GEOTRANS (Geographic Translator) is an application program which allows users to easily convert...

  6. The app is a free download from the App Store." Signpost/2010-11-01, "One million geocoordinates: Last week, the number of geographical coordinates on the English Wikipedia surpassed one million, in around 620,000 articles.

  7. A geographic information system ( GIS) consists of integrated computer hardware and software that store, manage, analyze, edit, output, and visualize geographic data. [1] [2] Much of this often happens within a spatial database, however, this is not essential to meet the definition of a GIS. [1] In a broader sense, one may consider such a ...

  8. May 21, 2023 · Coordinate systems are frameworks that are used to define unique positions. For instance, in geometry, we use x (horizontal) and y (vertical) coordinates to define points on a two-dimensional plane. The coordinate system used to define locations on the three-dimensional earth is the geographic coordinate system (GCS), based on a sphere or spheroid.

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