The angular distance between a point on the Earth’s surface and the equator, using as the vertex the intersection with the equatorial plane of a perpendicular line drawn from the surface point. Compare geocentric latitude.
- Geodetic longitude
geodetic longitude The angular distance between the prime meridian and another meridian passing through a point on the Earth’s surface. Because the vertex of the angle is the center of the Earth, the same as for geocentric longitude, the value is the same for both types of longitude. Compare geocentric longitude.
noun 1. a land area survey in which the curvature of the surface of the earth is taken into account. geodetic survey A survey of a large area of land in which corrections are made to account for the curvature of the Earth.
- Geodetic surveying
noun 1. the surveying of the earth’s surface, making allowance for its curvature and giving an accurate framework for smaller-scale surveys
[jee-uh-dim-i-ter] /ˌdʒi əˈdɪm ɪ tər/ Trademark. 1. a brand of distance-measuring instrument, used in surveying, that measures the change in phase of a modulated light beam when it returns to the instrument from a distant point.