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  1. The geographic coordinate system (GCS) is a spherical or geodetic coordinates 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.

  2. A geographical coordinate system is a coordinate system. This means that every place can be specified by a set 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.

  3. A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. [n 1] The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic positio...

  4. Mar 3, 2020 · A geographic coordinate system (GCS) is a reference framework that defines the locations of features on a model of the earth. It’s shaped like a globe—spherical. Its units are angular, usually degrees. A projected coordinate system (PCS) is flat.

  5. Sep 23, 2018 · The State Plane Coordinate System (SPS or SPCS) is a set of 126 geographic zones or coordinate systems designed for specific regions of the United States. Each state contains one or more state plane zones, the boundaries of which usually follow county lines.

  6. May 6, 2009 · Unproject the data to geodetic latitude and longitude using the same GCS. Transform the data to geodetic latitude and longitude using the new GCS. Project the data to the new PCS using the new GCS. You can see that when you select the PCS you want to use, you also need to select the geographic transformation (step 3 above) because there are ...

  7. May 20, 2023 · Also known as. English. geographic coordinate system. system to specify locations on Earth. Geo Position. Geo-coordinates. Geographic References. Geo coordinates. Geo-co-ordinates.

  8. A geographic transformation always converts geographic (latitude–longitude) coordinates. Some methods convert the geographic coordinates to geocentric (X,Y,Z) coordinates, transform the X,Y,Z coordinates, and convert the new values back to geographic coordinates. These include the Geocentric Translation, Molodensky, and Coordinate Frame methods.

  9. A geographic coordinate system The lines that run east and west each have a constant latitude value and are called parallels. They are equidistant and parallel to one another, and form concentric circles around the earth. The equatoris the largest circle and divides the earth in half. It is equal in distance

  10. A geographic coordinate system is a coordinate sys- the motion, while France and Brazil abstained. France tem that enables every location on the Earth to be spec- adopted Greenwich Mean Time in place of local deteried by a set of numbers or letters. [n 1] The coordinates minations by the Paris Observatory in 1911.

  11. A geographic coordinate system (GCS) uses a three-dimensional ellipsoidal surface to define locations on the Earth. These coordinates are based on angles from the center of the Earth to the surface. Typically GCSs use latitude and longitude specified in degrees. There are three parts to a geographic coordinate system:

  12. Other versions | Help archive A geographic datum transformation is a calculation used to convert between two geographic coordinate systems to ensure that data is properly aligned within a map. Geographic coordinate systems describe how locations on the earth are placed on a hypothetical reference spheroid.

  13. A geographic coordinate system (GCS) is used to define locations on a model of the surface of the earth. The GCS uses a network of imaginary lines (longitude and latitude) to define locations. This network is called a graticule. So why isn’t knowing the latitude and longitude of a location good enough to know where it is?