 World map

This article is about maps of the Earth. For other uses, see World map (disambiguation).
A world map is a map of the surface of the Earth, which may be made using any of a number of different map projections. A map projection is any method of representing the surface of a sphere or other threedimensional body on a plane.
Maps of the world are often either 'political' or 'physical'. The most important purpose of the political map is to show territorial borders; the purpose of the physical map is to show features of geography such as mountains, soil type or land use. Geological maps show not only the physical surface, but characteristics of the underlying rock, fault lines, and subsurface structures.
Contents
Projections
Main article: Map projectionMaps that depict the surface of the Earth use a projection, a way of translating the threedimensional real surface of the geoid to a twodimensional picture. Perhaps the bestknown worldmap projection is the Mercator Projection, originally designed as a form of nautical chart.
Aeroplane pilots use aeronautical charts based on a Lambert conformal conic projection, in which a cone is laid over the section of the earth to be mapped. The cone intersects the sphere (the earth) at one or two parallels which are chosen as standard lines. This allows the pilots to plot a great circle (shortest distance) route approximation on a flat, twodimensional chart.
Thematic
Further information: thematic map
Elevation map

Present day Earth altimetry and bathymetry (Mollweide projection)
Historical
Further information: Early world maps
Tabula Rogeriana world map by Muhammad alIdrisi in 1154. Note that north is to the bottom
See also
 Ancient world maps
 Clickable world map
 Continental drift
 Blank maps of the world for historical use
 European Digital Archive on Soil Maps of the World
 International Map of the World
 List of World Map changes
 Mappa mundi
 OneGeology
 Time zone
 World Map at Lake Klejtrup
 Global Map
Projections
Main article: List of map projections Albers projection
 Azimuthal conformal projection: see Stereographic projection
 Azimuthal equidistant projection
 Behrmann projection
 Bonne projection
 Bottomley projection
 Cahill octahedral Butterfly projection: see Bernard J.S. Cahill
 Craig retroazimuthal projection
 Dymaxion projection
 Equirectangular projection
 Gall–Peters projection
 Gnomonic projection
 Goode homolosine projection
 Hammer projection
 Hobo–Dyer projection
 Lambert azimuthal equalarea projection
 Lambert conformal conic projection
 Lambert cylindrical equalarea projection
 Littrow projection
 Mercator projection
 Miller cylindrical projection
 Mollweide projection
 Peters projection
 Plate carrée projection
 Polyconic projection
 Robinson projection
 Sinusoidal projection
 Stereographic projection
 Transverse Mercator projection
 Waterman butterfly projection
 Werner projection
 Winkel Tripel projection
References
 ^ LargeScale Distortions in Map Projections, 2007, David M. Goldberg & J. Richard Gott III, 2007, V42 N4.
External links
 World map at WikiMapia
 World maps from the CIA World Factbook
 An interactive JAVA applet to study deformations (area, distance, angle) of world maps
 World maps in PDF format
 United Nations Map Library
 University of Texas Map Collection
 Java world map allowing different projections and orientations
 (European Digital Archive on the Soil Maps of the World  EuDASM)
 Brief History of Maps and Cartography
 GinkgoMaps  Free Digital World Maps published under the CCby Licence
 American Geographical Society Library Digital Map Collection
Categories: Map types
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