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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:

Test Your Knowledge

Spatial Reference Systems are also referred to as:

Spatially Referenced Projections
Coordinate Systems
Spatial Reference Coordinates
Coordinate References

Which of the following statements is true?

Projected Coordinate Systems contain Geographic Coordinate Systems
Geographic Coordinate Systems contain Projected Coordinate Systems
Both are true

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