GPS Accuracies
Survey Grade | |||
---|---|---|---|
Method | Typical Accuracy | Occupation Time | Typical Applications |
Continuous | < 0.5cm | Months or more | Crustal deformation, geophysics, reference stations |
Static | 0.5 cm - 5 cm | Hours to days | Crustal deformation, geodetic control, very long baseline surveys, geophysics |
Rapid Static | 1 cm - 5 cm | Minutes | Short baseline surveys, glaciology |
Kinematic | 1 cm - 5 cm | Seconds | Short baselines, closely spaced points, vehicle positioning, feature surveys, GIS and mapping |
Mapping Grade | |||
Method | Typical Accuracy | Occupation Time | Typical Applications |
Code differential | 50 cm - 300 cm | Seconds | Coarse GIS, mapping, positioning |
Carrier differential | 15 cm - 100 cm | Minutes | GIS, mapping, positioning |
Recreational Grade | |||
Method | Typical Accuracy | Occupation Time | Typical Applications |
Point positioning | 100 cm - 800 cm | Minutes to hours | Rough positioning (uncorrected) |