Geocart Projections

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Fournier globular I

Classification

Geocart menu class: Miscellaneous
Globular
Neither conformal nor equal area

Graticule

Meridians: Central meridian is straight. Other meridians are semiellipses equally spaced along the Equator but not along other parallels.
Parallels: Parallel straight lines equally spaced on the meridians 90° from center
Poles: Points
Symmetry: About the central meridian or the Equator

Scale

True along the central meridian and the Equator

Distortion

Moderate for a hemisphere

Usage

Early whole-world or hemispheric maps

Origin

Presented by Georges Fournier of France in 1643

Similar projections

Nicolosi Globular has circular arcs for meridians.
Mollweide has straight parallels and is used for world maps, but meridians within one hemisphere are the same as those on Fournier I.
Azimuthal Equidistant (equatorial aspect) has complex curves for meridians and parallels.

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.