Wagner I

Kavrayskiy VI

Classifications

pseudocylindric
equal-area

Graticule

Meridians: Central meridian is a straight line half as long as the equator. Other meridians are equally spaced portions of sinusoids concave toward the central meridian.
Parallels: Unequally spaced straight parallel lines. Perpendicular to the central meridian.
Poles: Lines half as long as the equator.
Symmetry: About the central meridian or the equator.

Scale

True along latitudes 47°33´N/S. Constant along any given latitude; same for the latitude of opposite sign.

Distortion

Free of distortion only at latitudes 47°33´N/S at the central meridian. Distortion is not as extreme near outer meridians at high latitudes as it is on pointed polar pseudocylindric projections, but there is considerable distortion throughout polar regions.

Similar projections

Kavrayskiy VI is identical.
Putniṇš P4´ has parabolic meridians but is practically identical.
Eckert VI is very close.
Wagner II is not equal-area and is scaled slightly larger.

Origin

Presented by Karlheinz Wagner of Germany in 1932. Independently developed by Vladimir Vladomirivich Kavrayskiy in 1936.

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