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Address geocoding, or simply geocoding, is the process of taking a text-based description of a location, such as an address or the name of a place, and returning geographic coordinates, frequently latitude/longitude pair, to identify a location on the Earth's surface. [ 1] Reverse geocoding, on the other hand, converts geographic coordinates to ...
v. t. e. A geographic coordinate system ( GCS) is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude and longitude. [ 1] It is the simplest, oldest and most widely used of the various spatial reference systems that are in use, and forms the basis for most others.
The 1980 Geodetic Reference System (GRS 80) posited a 6 378 137 m semi-major axis and a 298.257222101 flattening. This system was adopted at the XVII General Assembly of the International Union of Geodesy and Geophysics ( IUGG) in Canberra, Australia, 1979. The GRS 80 reference system was originally used by the World Geodetic System 1984 (WGS 84).
The history of longitude describes the centuries-long effort by astronomers, cartographers and navigators to discover a means of determining the longitude of any given place on Earth. The measurement of longitude is important to both cartography and navigation. In particular, for safe ocean navigation, knowledge of both latitude and longitude ...
Geodetic latitude and geocentric latitude have different definitions. Geodetic latitude is defined as the angle between the equatorial plane and the surface normal at a point on the ellipsoid, whereas geocentric latitude is defined as the angle between the equatorial plane and a radial line connecting the centre of the ellipsoid to a point on the surface (see figure).
Location map of Central America. / 12.5; -85. Module:Location map/data/Central America is a location map definition used to overlay markers and labels on an equirectangular projection map of Central America. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
The default map image, without "Image:" or "File:" image1 = USA Louisiana relief location map.svg An alternative map image, usually a relief map, which can be displayed via the relief or AlternativeMap parameters; top = 33.2 Latitude at top edge of map, in decimal degrees; bottom = 28.7 Latitude at bottom edge of map, in decimal degrees; left ...
Latitude at top edge of map, in decimal degrees; bottom = 42.32806 Latitude at bottom edge of map, in decimal degrees; left = -71.12314 Longitude at left edge of map, in decimal degrees; right = -71.0216 Longitude at right edge of map, in decimal degrees; Precision. Longitude: from West to East this map definition covers 0.1015 degrees.