Geocart menu class: Miscellaneous
Meridians: Central meridian is straight. The 90th meridians are straight but bent at the 45th parallels N. and S. Other meridians are complex curves.
Parallels: Equator is straight. Other parallels are complex curves. Poles: Points, in the midpoint of opposite sides of a square bounding a hemisphere
Symmetry: About the central meridian or the Equator
Varies considerably along each meridian and parallel
Great distortion of area, especially near the 90th meridian at latitudes 45°N. or S., where conformality fails
Shows hemisphere conformally in a square and the world in a 2x1 rectangle. Hemispheres can be mosaicked to form a continuous map indefinitely.
Novelty map of a hemisphere or of the world
Presented by Emile Guyou of France in 1887
A transverse aspect is the Peirce Quincuncial projection. An oblique aspect is the Adams projection of a hemisphere in a square.
Listed under Aspects above
Description adapted from J.P. Snyder and P.M. Voxland, An Album of Map Projections, U.S. Geological Survey Professional Paper 1453. United States Government Printing Office: 1989.