Latitude | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-03-17

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Latitude


00:00:53 1 Preliminaries
00:03:23 2 Latitude on the sphere
00:03:33 2.1 The graticule on the sphere
00:05:07 2.2 Named latitudes on the Earth
00:07:01 2.3 Meridian distance on the sphere
00:08:59 3 Latitude on the ellipsoid
00:09:09 3.1 Ellipsoids
00:11:05 3.2 The geometry of the ellipsoid
00:14:14 3.3 Geodetic and geocentric latitudes
00:16:32 3.4 Length of a degree of latitude
00:22:49 3.5 The nautical mile
00:23:28 4 Auxiliary latitudes
00:23:41 4.1 Geocentric latitude
00:25:20 4.2 Parametric (or reduced) latitude
00:27:02 4.3 Rectifying latitude
00:29:56 4.4 Authalic latitude
00:32:42 4.5 Conformal latitude
00:36:11 4.6 Isometric latitude
00:40:17 4.7 Inverse formulae and series
00:43:20 4.8 Numerical comparison of auxiliary latitudes
00:44:40 5 Latitude and coordinate systems
00:46:00 5.1 Geodetic coordinates
00:46:05 5.2 Spherical polar coordinates
00:46:16 5.3 Ellipsoidal coordinates
00:46:50 5.4 Coordinate conversions
00:47:00 6 Astronomical latitude
00:47:37 7 See also
00:47:47 8 References
00:48:27 8.1 Footnotes
00:48:36 8.2 Citations
00:49:25 9 External links
00:49:35 The relations between the above coordinate systems, and also Cartesian coordinates are not presented here. The transformation between geodetic and Cartesian coordinates may be found in Geographic coordinate conversion. The relation of Cartesian and spherical polars is given in Spherical coordinate system. The relation of Cartesian and ellipsoidal coordinates is discussed in Torge.
00:50:02 Astronomical latitude



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SUMMARY
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In geography, latitude is a geographic coordinate that specifies the north–south position of a point on the Earth's surface. Latitude is an angle (defined below) which ranges from 0° at the Equator to 90° (North or South) at the poles. Lines of constant latitude, or parallels, run east–west as circles parallel to the equator. Latitude is used together with longitude to specify the precise location of features on the surface of the Earth. On its own, the term latitude should be taken to be the geodetic latitude as defined below. Briefly, geodetic latitude at a point is the angle formed by the vector perpendicular (or   normal) to the ellipsoidal surface from that point, and the equatorial plane. Also defined are six auxiliary latitudes which are used in special applications.