Eckert VI

Producer Field Guide

HGD_Product
Producer Field Guide
HGD_Portfolio_Suite
Producer

Eckert VI projection is best used for thematic maps. An example of a thematic map is one depicting land cover.

Construction

Pseudocylinder

Property

Equal-area

Meridians

Meridians are sinusoidal curves that are equally spaced.

Parallels

Parallels are unequally spaced straight lines, closer together at the poles.

Graticule spacing

See Meridians and Parallels. The poles and the central meridian are straight lines one half the length of the Equator.

Linear scale

"Scale is distorted north-south 29 percent along the Equator relative to the east-west dimension. This distortion decreases to zero at 49° 16’ N and S at the central meridian. Scale is correct only along these parallels. Nearer the poles, features are compressed in the north-south direction" (Environmental Systems Research Institute, 1997).

Uses

World maps only.

Source: Environmental Systems Research Institute, 1997

Eckert VI Projection

map_projection_eckert_6

Source: Snyder and Voxland, 1989