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Spatial Reference Systems: Definitions

Spatial Reference Systems (SRS)

Spatial Reference Systems, also referred to as "Coordinate Systems" or "Coordinate Reference Systems", include two common types:

Try not to confuse this with the more general terms:

Esri uses the following terms interchangeably to refer to a spatial reference system:

Geographic Coordinate Systems (GCS)

Geographic Coordinate Systems consist of:

Projected Coordinate Systems (PCS)

Projected Coordinate Systems consist of:

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