Universal Polar Stereographic
Last modified August 3, 2007
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Universal polar stereographic (UPS) maps areas north of 84° N and south of 80° S that aren't included in the UTM coordinate system. The projection is equivalent to the polar aspect of the stereographic projection of the spheroid with specific parameters. The central point is either the North Pole or the South Pole.
Learn more about the Polar Stereographic projection
Approximately (for the spheroid) planar perspective projection, where one pole is viewed from the other pole. Lines of latitude are concentric circles. The distance between circles increases away from the central pole. The origin at the intersection of meridians is assigned a false easting and false northing of 2,000,000 meters.
The latitude of true scale, 81°06'52.3" N or S, corresponds to a scale factor of 0.994 at the pole.
The UPS is normally limited to 84° N in the north polar aspect and 80° S in the south polar aspect.
Conformal mapping of polar regions.
Used for mapping polar regions of the UTM coordinate system.