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  1. en.wikipedia.org › wiki › Geographic_coordinate_systemGeographic coordinate system - Wikipedia

    A geographic coordinate system (GCS) is a spherical or geodetic coordinate system for measuring and communicating positions directly on 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.

    • Geodetic Datum

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

    • Decimal Degrees

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

  2. simple.wikipedia.org › wiki › Geographic_coordinateGeographic coordinate system - Simple English Wikipedia, the ...

    Geographic coordinate system. Map of Earth showing lines of latitude (horizontally) and longitude (vertically), Eckert VI projection; large version Archived 2016-12-25 at the Wayback Machine (pdf, 1.8MB) A geographical coordinate system is a coordinate system.

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  4. www.faculty.umb.edu › eeos281-coordinatesystemsChapter 11. Coordinate Systems

    Coordinate Systems. A coordinate system is a standardized method for assigning codes to locations so that locations can be found using the codes alone. Standardized coordinate systems use absolute locations. In a coordinate system, the x-direction value is the easting and the y-direction value is the northing.

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  5. en.wikipedia.org › wiki › Wikipedia:WikiProjectWikipedia:WikiProject Geographical coordinates - Wikipedia

    All coordinates are available for download in Wikipedia database dumps. To get the coordinates from the XML format dump of all articles (enwiki-latest-pages-articles.xml.bz2, 4 GB), the dump needs to be parsed for pages containing coordinates in the entry formats listed above.

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  7. en.wikipedia.org › wiki › Wikipedia:ObtainingWikipedia:Obtaining geographic coordinates - Wikipedia

    Gives coordinates for places, names, elevation/height above sea level on Google Maps (reverse geocoding). You can download the coordinate as GPX Waypoint, PCX5 Waypoint, LOC Geocache or Google Earth KML. GeocodeFarm: Address & coordinate search: Look up address by coordinates or coordinates by address. Forward and Reverse Geocoding Service.

  8. link.springer.com › content › pdfCoordinate Systems and Projections - Springer

    To quote from the Wikipedia page of the WGS 84: The WGS 84 datum surface is an oblate spheroid with equatorial radius a = 6378137 m at the equator and flattening f = 1/298.257223563. The refined value of the WGS 84 gravitational constant (mass of Earth's atmosphere included) is GM = 3986004.418×108 m3/s2.

  9. link.springer.com › content › pdfGeographic Coordinate System (GCS) - Springer

    The latitude and longitude is a 3-D coordinate system or spherical coordinate system that describes the location of features on the earth surface. Another type of coordinate system which can be used is called “Projected” or “Plane” coordinate. There are various types of plane coordinates systems, which is expressed in x and y coordinate.