# 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.

## 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

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. |