Winkels Tripel

Producer Field Guide

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Producer Field Guide
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Producer

Winkel’s Tripel was formulated in 1921 by Oswald Winkel of Germany. It is a combined projection that is the arithmetic mean of Plate Carrée and Aitoff’s projection (Maling, 1992).

Construction

Modified azimuthal

Property

Neither conformal nor equal-area

Meridians

Central meridian is straight. Other meridians are curved and are equally spaced along Equator, and concave toward central meridian.

Parallels

Equidistant spacing of parallels. Equator and poles are straight. Other parallels are curved and concave toward the nearest pole.

Graticule spacing

Symmetry is maintained along central meridian or Equator.

Linear scale

Scale is true along central meridian and constant along Equator.

Uses

World maps.

Winkel’s Tripel Projection

map_projection_winkels_tripel

Source: Snyder and Voxland, 1989