geographic longitude

geographic longitude

[¦jē·ə¦graf·ik ′län·jə‚tüd]
(geodesy)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

geodetic longitude

The angle between the plane of the reference meridian and the plane through the polar axis and the normal to the spheroid. It is the astronomical longitude corrected for the prime vertical component of the deflection of the vertical divided by the cosine of the latitude. This is the longitude used for charts. Also called geographic longitude
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
When north-south orientation and geographic longitude have deviation, the tracking error is biggest at noon, and it is smaller at morning and afternoon on the same day.
If L is the geographic longitude of the place, then I calculate the instant of centrality on the central line at longitude L+0.1[degrees] and at longitude L-0.1[degrees], together with the latitude of those places.
I chose sites at every integer degree of geographic longitude (0[degree sign] to 359[degree sign]) on each 1[degree sign] parallel of latitude (from 89[degree sign] north to 89[degree sign] south).

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