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Some of the popular conic projections are the Albers Equal Area Conic and the Lambert Conformal Conic projections. Both of these types of map projections are well-suited for mapping long east-west regions because distortion is constant along common parallels.
The Lambert Conformal Conic projection is a conic map projection that maintains accurate shapes and angles over small areas. This map projection is particularly suitable for mapping regions with a predominantly east-west extent, such as the United States.
A conic projection is a method of mapping the Earth's surface onto a cone, which is then unrolled to create a two-dimensional representation. This type of projection is particularly useful for mapping regions with a greater east-west than north-south extent, as it minimizes distortion in those areas.
Conic Projections. When you place a cone on the Earth and unwrap it, this results in a conic projection. For example, the Albers Equal Area Conic and the Lambert Conformal Conic projections are conic projections. Both of these map projections are well-suited for mapping long east-west regions because distortion is constant along common parallels.
Conformal, or orthomorphic, map projections preserve angles locally, implying that they map infinitesimal circles of constant size anywhere on the Earth to infinitesimal circles of varying sizes on the map.
Projected Coordinate Systems as well as Geographic Coordinate Systems. Plot a Location (decimal degrees): Longitude: Latitude: Label: help.
Conic projections are used for midlatitude zones that have an east–west orientation. Somewhat more complex Conic projections contact the global surface at two locations. These projections are called Secant projections and are defined by two standard parallels.
Lambert conformal projection, conic projection for making maps and charts in which a cone is, in effect, placed over the Earth with its apex aligned with one of the geographic poles. The cone is so positioned that it cuts into the Earth at one parallel and comes out again at a parallel closer to.
Conic projections yield straight meridians that converge toward a single point at the poles, parallels that form concentric arcs. The example shown above is the result of an Albers Conic Equal Area, which is frequently used for thematic mapping of mid-latitude regions.
For larger scale maps, including topographic quadrangles and the State Base Map Series, conformal projections such as the Transverse Mercator and the Lambert Conformal Conic are used. Equal-area and equidistant projections appear in the National Atlas.