Linked from

The 12 pages that link to Earth ellipsoid, each with the reason it gives.

• GeodesyRelated: It supplies a smooth geometric model for latitude, longitude, and height.

• GeoidCompared with: Unlike the geoid, it is smooth and defined by geometry rather than gravity.

• Geographic coordinate systemRelated: Geodetic latitude and longitude are commonly defined on an ellipsoidal Earth model.

• Geodetic datumRelated: Its dimensions define the datum’s geometric model of Earth.

• Satellite altimetryRelated: Orbital height and geodetic coordinates are commonly expressed relative to an ellipsoid.

• Oblate spheroidRelated: Geodesy represents Earth with an oblate reference ellipsoid.

• Satellite geodesyRelated: Satellite coordinates are commonly specified relative to an ellipsoid fitted to Earth.

• World Geodetic System 1984Related: WGS 84 uses an ellipsoid to express geodetic latitude, longitude, and height.

• Planetary radiusRelated: Its equatorial and polar dimensions provide standard reference radii for an oblate planet.

• Figure of the EarthBroader topic: It supplies the regular surface used to approximate Earth’s overall shape.

• Circle of latitudeRelated: Many coordinate systems define latitude circles on an ellipsoid rather than a sphere.

• Physical geodesyRelated: It supplies the geometric baseline against which geoid height and gravity departures are expressed.