EFFECTIVE RADIUS OF THE EARTH

Domain	Definition
Aerospace	A fictitious value for the radius of the earth, used in place of the geometrical radius to correct for atmospheric refraction when the index of refraction in the atmosphere changes linearly with height. See modified index of refraction.Under conditions of standard refraction the effective radius of the earth is 8.5 * 106 meters, or four-thirds the geometrical radius. If the effective radius is used in ray tracing diagrams, the rays may be drawn as though they were traveling in straight lines. (references)
Electrical Engineering	The radius of an ideal spherical Earth without atmosphere for which propagation paths are along straight lines, the height and ground distances being the same as for the actual Earth in an atmosphere with a constant vertical gradient of refractivity. Source: European Union. (references)
Source: compiled by the editor from various references; see credits.

Modern Translation: EFFECTIVE RADIUS OF THE EARTH

Language		Translations for "EFFECTIVE RADIUS OF THE EARTH"; alternative meanings/domain in parentheses.
Danish		virkelig jordradius (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius), sand jordradius (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius). (various references)

Dutch		werkelijke aardstraal (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius), werkelijke aardradius (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius). (various references)

Finnish		efektiivinen maansäde (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius), todellinen maansäde (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius). (various references)

French		rayon terrestre réel (effective Earth's radius), rayon réel de la terre (effective Earth's radius). (various references)

German		reeller Erdradius (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius). (various references)

Greek		πραγματική ακτίνα γης (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius), πραγματική ακτίνα της γης (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius). (various references)

Italian		raggio terrestre reale (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius), raggio reale della Terra (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius). (various references)

Pig Latin		effectiveay adiusray ofay ethay earthay

Portuguese		raio terrestre real (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius), raio real da Terra (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius). (various references)

Spanish		radio verdadero de la Tierra (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius), radio terrestre real (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius), radio real de la Tierra (actual radius of the earth, effective Earth's radius, real radius of the earth, true earth radius). (various references)
Source: compiled by the editor from various translation references.