Winkel I
Description
Often used for world maps, the Winkel I projection is a pseudo cylindrical projection that averages the coordinates from the equirectangular (equidistant cylindrical) and sinusoidal projections. Developed by Oswald Winkel in 1914.
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Projection method
Pseudo cylindrical. Coordinates are the average of the sinusoidal and equirectangular projections. Meridians are equally spaced sinusoidal curves curving toward the central meridian. The central meridian is a straight line. Parallels are equally spaced straight lines. The length of the poles and the central meridian depends on the standard parallels. If the standard parallel is the equator, Eckert V results.
Linear graticules
The parallels and the central meridian.
Properties
Shape
Generally distorted.
Area
Generally distorted.
Direction
Generally distorted.
Distance
Generally, scale is made true along latitudes 50°28' N and S.
Limitations
Neither conformal nor equal area. Useful only for world maps.
Uses and applications
Developed for use in general world maps. If the standard parallels are 50°28' N and S, the total area scale is correct, but local area scales vary.
Parameters
Desktop
- False Easting
- False Northing
- Central Meridian
- Standard Parallel 1
Note:Supported on spheres only.