Eckert III projection

The Eckert III projection is 'flat-polar" world map projection developed by Max Eckert, a German professor, and published in 1906 as one of 6 world map projections. This design is sometimes mistaken for the projection of Ortelius's oval map, which lacks constant scale along parallels and thus is not pseudocylindrical. Characteristics of the Eckert III projection include the following:


 * equally spaced parallels
 * a straight central meridian
 * a standard line
 * poles are flat; half as long as the Equator



More Information

 * Pseudocylindrical Projections
 * The Nomenclature and Classification of Map Projections Empire Survey Review No. 51, Vol VII January 1944 Pages 190-200 ; L.P. Lee, Lands Survey Department, Wellington, N.Z.
 * Matching the Map Projection to the Need
 * List of ESRI-supported map projections
 * Weisstein, Eric W. Map Projections. From MathWorld--A Wolfram Web Resource.
 * Map Projections''. Atlas of Canada.
 * Cartographical Map Projections'', Carlos A. Furuti website, www.progonos.com.
 * Elements of Map Projection. (26 MB download) U.S. Coast and Geodetic Survey, Special Publication 68 (1938).
 * Map Projections. USGS Publications. December 2000.
 * What are map projections? ArcGIS 10 Online Help
 * University of Colorado at Boulder - Map Projection Overview with Illustrations
 * Data Projections. GeoCommunity Web site.
 * Wiki.GIS.com - Types of Projections