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Conic Projections

Albers Equal Area Conic Projection
The last of the basic conic projections to be developed with one of the three major properties of conformality, equivalence or equidistance along meridians was this equal-area presented by H.C. Albers (1805a), three months after Mollweide presented his elliptical world map in the same journal. Albers (1773-1833), a native and life long resident of Luneburg, Germany, derived the formulas for the projection of the sphere using two standard parallels.
Equidistant Conic Projection
Conic equidistant projections can be constructed using one or two standard parallels. As with azimuthal and cylindrical projections, the equidistant conic projections are obtained by adjusting the spacing of the parallels so that they are equally spaced along meridians and the distance between the parallels on the map is equal to the arc length between parallels on the generating globe. Distances measured along all meridians and along the standard parallel(s) are true to scale but other distances are distorted.
Lambert Conformal Conic Projection
Developed by J.H. Lambert in 1772. The projection was almost unknown as a Lambert Projection for over a century. Harding, Herschel and Boole had developed it independently in both spherical and ellipsoidal forms during the 19th century. World War I gave this projection new life, making it the standard projection for intermediate - and large-scale maps of regions in midlatitudes for which the transverse Mercator is not used.
Polyconic Projection
The polyconic was applied as a specific projection in 1853 by Edward Bissell Hunt of the U.S. Coast Survey to one first proposed by Ferdinand Rudolph Hassler (Swiss-born, 1770-1843). It was commonly, but not exclusively, used for coastal charts of the United States. When the U.S. Geologic Survey came into existence in 1879 and began issuing maps of land surveys, the polyconic was the only projection used for the agency's topographic quadrangles until the mid 20th century. This emphasis on usage by U.S. government agencies led to its use in several 19th century commercial atlases as well, for some maps of the United States, Canada, North America, Asia and Oceania. The polyconic projection of Hassler is simultaneously universal for a given figure of the earth (sphere or ellipsoid), simply drawn, even for the ellipsoid, and employs useful scale characteristics. The projection is true to scale along the central meridian and along each parallel. It is neither conformal nor equal-area, and it is only free of distortion along the central meridian. Therefore, it should only be used for regions of predominant north-south extent.

Bonne Projection Bonne's projection is a pseudo-conic projection that is directly analogous to the Sinusoidal projection. It is constructed by starting with a simple conic projection in which the parallels are equally spaced along the meridians. The parallels are then scaled to be true to scale. The result is an equivalent projection that can represent the entire world although it is usually limited to areas less than a hemisphere. Bonne's projection was used by France as the basis for their topographic maps.
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