Lambert Conformal Conic projection (LCC) is a conic map projection
used for aeronautical charts, portions of the State Plane Coordinate
System, and many national and regional mapping systems. It is one of
seven projections introduced by Johann Heinrich Lambert in 1772.
It has several different forms: with one and two standard parallels
(referred to as 1SP and 2SP in EPSG guidance notes). Additionally we
provide "2SP Michigan" form which is very similar to normal 2SP, but
with a scaling factor on the ellipsoid (given as k_0 parameter).
It is implemented as per EPSG Guidance Note 7-2 (version 54, August
2018, page 25). It is used in a few systems in the EPSG database which
justifies adding this otherwise non-standard projection.
Classification: Conformal conic
Available forms: Forward and inverse, spherical and ellipsoidal
One or two standard parallels (1SP and 2SP).
"LCC 2SP Michigan" form can be used by setting the +k_0 parameter to specify ellipsoid scale.
Defined area: Best for regions predominantly east-west in extent and located in the middle north or south latitudes.
Alias: lcc
Domain: 2D
Input type: Geodetic coordinates
Output type: Projected coordinates
Projection String
+proj=lcc +lon_0=-90 +lat_1=33 +lat_2=45
Required Parameters
+lat_1: Latitude of the first standard parallel.
Optional Parameters
+lon_0: Longitude of projection center. Defaults to 0.
+lat_0: Latitude of projection center. Defaults to 0.
+lat_2: Latitude of the second standard parallel.
+ellps: Ellipsoid. Defaults to WGS84.
+R: Radius of the sphere.
+x_0: False easting. Defaults to 0.
+y_0: False northing. Defaults to 0.
+k_0: Scale factor at natural origin (for LCC 1SP) or ellipsoid scale factor (for LCC 2SP Michigan). Defaults to 1.0.
Lambert Conformal Conic
Lambert Conformal Conic projection (LCC) is a conic map projection used for aeronautical charts, portions of the State Plane Coordinate System, and many national and regional mapping systems. It is one of seven projections introduced by Johann Heinrich Lambert in 1772.
It has several different forms: with one and two standard parallels (referred to as 1SP and 2SP in EPSG guidance notes). Additionally we provide "2SP Michigan" form which is very similar to normal 2SP, but with a scaling factor on the ellipsoid (given as
k_0parameter). It is implemented as per EPSG Guidance Note 7-2 (version 54, August 2018, page 25). It is used in a few systems in the EPSG database which justifies adding this otherwise non-standard projection.Classification: Conformal conic
Available forms: Forward and inverse, spherical and ellipsoidal
+k_0parameter to specify ellipsoid scale.Defined area: Best for regions predominantly east-west in extent and located in the middle north or south latitudes.
Alias: lcc
Domain: 2D
Input type: Geodetic coordinates
Output type: Projected coordinates
Projection String
Required Parameters
+lat_1: Latitude of the first standard parallel.Optional Parameters
+lon_0: Longitude of projection center. Defaults to0.+lat_0: Latitude of projection center. Defaults to0.+lat_2: Latitude of the second standard parallel.+ellps: Ellipsoid. Defaults toWGS84.+R: Radius of the sphere.+x_0: False easting. Defaults to0.+y_0: False northing. Defaults to0.+k_0: Scale factor at natural origin (for LCC 1SP) or ellipsoid scale factor (for LCC 2SP Michigan). Defaults to1.0.Further reading