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Specialty Expressions: EFFECTIVE EARTH RADIUS

ExpressionsDomainDefinition
Effective Earth radiusAerospaceSee effective radius of the earth. (references)
Effective Earth radiusBusinessThe radius of a hypothetical Earth for which the distance to the radio horizon, assuming rectilinear propagation, is the same as that for the actual Earth with an assumed uniform vertical gradient of atmospheric refractive index. Note: For the standard atmosphere, the effective Earth radius is 4/3 that of the actual Earth radius. (references)

Source: compiled by the editor from various references; see credits.

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Extended Definition: Effective Earth radius

Effective Earth radius

In telecommunication, effective Earth radius is the radius of a hypothetical Earth for which the distance to the radio horizon, assuming rectilinear propagation, is the same as that for the actual Earth with an assumed uniform vertical gradient of atmospheric refractive index.

Note: For the standard atmosphere, the effective Earth radius is 4/3 that of the actual Earth radius.

Source: from Federal Standard 1037C and from MIL-STD-188

Source: adapted by the editor from Wikipedia, the free encyclopedia; from the article "Effective Earth radius". Image Credit.