+
+ +
+

Albers Equal Area

+ ++++ + + + + + + + + + + + + + + + + + + + + + + + +

Classification

Conic

Available forms

Forward and inverse, spherical and ellipsoidal

Defined area

Global

Alias

aea

Domain

2D

Input type

Geodetic coordinates

Output type

Projected coordinates

+
+Albers Equal Area +
+

proj-string: +proj=aea +lat_1=29.5 +lat_2=42.5

+
+
+
+

Options

+
+

Required

+
+
++lat_1=<value>
+

First standard parallel.

+

Defaults to 0.0.

+
+ +
+
++lat_2=<value>
+

Second standard parallel.

+

Defaults to 0.0.

+
+ +
+
+

Optional

+
+
++lon_0=<value>
+

Longitude of projection center.

+

Defaults to 0.0.

+
+ +
+
++ellps=<value>
+

The name of a built-in ellipsoid definition.

+

See Ellipsoids for more information, or execute +proj -le for a list of built-in ellipsoid names.

+

Defaults to “GRS80”.

+
+ +
+
++R=<value>
+

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

+

See Ellipsoid size parameters for more information.

+
+ +
+
++x_0=<value>
+

False easting.

+

Defaults to 0.0.

+
+ +
+
++y_0=<value>
+

False northing.

+

Defaults to 0.0.

+
+ +
+
+
+ + +
+