Mollweide

Producer Field Guide

HGD_Product
Producer Field Guide
HGD_Portfolio_Suite
Producer

Carl B. Mollweide designed the projection in 1805. It is an equal-area pseudocylindrical projection. The Mollweide projection is used primarily for thematic maps of the world.

Construction

Pseudocylinder

Property

Equal-area

Meridians

Meridians are elliptical arcs that are equally spaced. The exception is the central meridian, which is a straight line.

Parallels

All parallels are straight lines.

Graticule spacing

The Equator and the central meridian are linear graticules.

Linear scale

Scale is accurate along latitudes 40° 44’ N and S at the central meridian. Distortion becomes more pronounced farther from the lines, and is severe at the extremes of the projection.

Uses

World maps only.

Source: Environmental Systems Research Institute, 1997

Mollweide Projection

map_projection_mollweide

Source: Snyder and Voxland, 1989