Urmayev II

Урмаева II

Parameters: Pole-line stretch 0.0 ≤ β ≤ 1.0, Area scale 0.0 ≤ s ≤ 1.0

Classifications

pseudocylindric

Graticule

Meridians: Complex curves except when β = 0, giving straight meridians.
Parallels: Straight parallel lines.
Poles: Points if β = 1; lines otherwise.
Symmetry: About the central meridian and the equator.

Scale

Depends on parameterization.

Distortion

Depends on parameterization.

Parameters

β, related to the length of the pole line. With β = 0, the projection is cylindric. With β = 1, the projection has pointed poles.
s, related to the overall areal scale. Lower values compress the high latitudes north/south; higher values stretch them.

Origin

Nikolay Andreyevich Urmayev, 1950.

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