• IntroductionGeodetic datum
  • History
  • DimensionsHorizontal datumVertical datum
  • Geodetic coordinates
  • Earth reference ellipsoidDefining and derived parametersParameters for some geodetic systemsGeodetic Reference System 1980 (GRS80)World Geodetic System 1984 (WGS 84)
  • Datum transformation
  • Discussion and examplesExamples
  • Plate movement
  • See also
  • Footnotes
  • References
  • Further reading
  • External links