Winkel I

Producer Field Guide

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Producer Field Guide
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Producer

Winkel I projection is the average of two projections, Sinusoidal and Equirectangular, in both x and y coordinates, and is "not free of distortion at any point".

Construction

Pseudocylinder

Property

Neither conformal nor equal-area

Meridians

Central meridian is a straight line 0.61 the length of the Equator. Other meridians are sinusoidal curves that are equally spaced and concave toward the central meridian.

Parallels

Parallels are equally spaced.

Graticule spacing

See Meridians and Parallels. Pole lines are 0.61 the length of the Equator. Symmetry exists about the central meridian or the Equator.

Linear scale

Scale is true along latitudes 50° 28’ N and S. Scale is constant along any given latitude as well as the latitude of the opposite sign.

Uses

World maps.

Source: Snyder and Voxland, 1989

Winkel I Projection

map_projection_winkel_i

Source: Snyder and Voxland, 1989