Stereographic

Classification	Azimuthal
Available forms	Forward and inverse, spherical and ellipsoidal
Defined area	Global
Alias	stere
Domain	2D
Input type	Geodetic coordinates
Output type	Projected coordinates

proj-string: +proj=stere +lat_0=90 +lat_ts=75

Parameters

Note

All parameters are optional for the projection.

+lat_0=<value>

Latitude of projection center.

Defaults to 0.0.

+lat_ts=<value>

Defines the latitude where scale is not distorted. It is only taken into account for Polar Stereographic formulations (+lat_0 = +/- 90 ), and then defaults to the +lat_0 value. If set to a value different from +/- 90, it takes precedence over +k_0 if both options are used together.

+k_0=<value>

Scale factor. Determines scale factor used in the projection.

Defaults to 1.0.

+lon_0=<value>

Longitude of projection center.

Defaults to 0.0.

+ellps=<value>

See proj -le for a list of available ellipsoids.

Defaults to “GRS80”.

+R=<value>

Radius of the sphere given in meters. If used in conjunction with +ellps +R takes precedence.

+x_0=<value>

False easting.

Defaults to 0.0.

+y_0=<value>

False northing.

Defaults to 0.0.