magnetic variation

English edit

Noun edit

magnetic variation (countable and uncountable, plural magnetic variations)

  1. (military, nautical, navigation) In navigation, at a given place and time, the horizontal angle between the true north and magnetic north measured east or west according to whether magnetic north lies east or west of true north.
  2. (cartography) In cartography, the annual change in direction of the horizontal component of the Earth’s magnetic field.

Translations edit

See also edit

References edit

  • JP 1-02 Department of Defense Dictionary of Military and Associated Terms