Adams hemisphere in a square
Geocart menu class: Miscellaneous
Geocart family: Adams
Meridians: Central meridian is straight. The 90th meridians are straight lines bent at the Equator. Other meridians are curved.
Parallels: Equator is straight. Other parallels are curved.
Poles: Points, in opposite vertices of a square
Symmetry: About the central meridian or the Equator
Varies along each meridian and each parallel
Great distortion of area at the poles or the intersection of the 90th meridians with the Equator. At these four points, conformality fails.
Hemisphere is enclosed in a square. World can be enclosed in a 2x1 rectangle.
Novelty map of a hemisphere
Presented by Oscar Sherman Adams (1874–1962) of the U.S. Coast and Geodetic Survey in 1925
One transverse aspect is the Peirce Quincuncial projection. Another transverse aspect is a rotation of the original projection. An oblique aspect is the Guyou projection.
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.