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.

• Learn about the equirectangular (equidistant cylindrical) projection
• Learn about the sinusoidal projection

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.

• Learn about the sinusoidal projection
• Learn about the equirectangular projection
• Learn about the Eckert V projection

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.

geographic_coordinate_systems.pdf	A geographic coordinate systems pdf file which contains lists of supported gcs and vcs.
projected_coordinate_systems.pdf	A projected coordinate systems pdf file which contains lists of supported pcs.
geographic_transformations.pdf	A geographic transformations pdf file which contains lists of supported geographic and vertical transformations.