A modified azimuthal, equal-area projection that was the seventh in a series of new projections presented by Wagner in his cartographic work.
Scale
Decreases along the central meridian and the Equator with distance from the center of the projection.
Distortion
Considerable shape distortion in polar areas.
Usage
Thematic world maps, such as climatic maps prepared by the U.S. Department of Commerce.
Origin
Presented by Karlheinz Wagner of Germany in 1941, the Wagner VII is a modification of the Hammer projection and is also known as the Hammer-Wagner projection.