Geocart Projections

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van der Grinten II

Classifications

Geocart menu class: Miscellaneous
Geocart family: van der Grinten
Polyconic
Neither conformal nor equal area

Graticule

Meridians: Central meridian is straight. Other meridians are circular, equally spaced along the Equator and concave toward the central meridian.
Parallels: Equator is straight. Other parallels are circular arcs, concave toward the nearest pole.
Poles: Points
Symmetry: About the central meridian or the Equator

Scale

True on the Equator. Increases rapidly with distance from the Equator.

Distortion

Great distortion of area near the poles

Other features

The world is enclosed in a circle. All meridians intersect parallels at right angles, but projection is not conformal. Spacing of parallels along the central meridian is the same as that for Van der Grinten I.

Usage

World maps, but rarely

Origin

Presented by Alphons J. van der Grinten (1852–?) of Chicago in 1904

Similar projections

Lagrange is conformal.
Van der Grinten I has parallels that do not intersect meridians at right angles.

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.