Equidistant conic map projections

Auteur :
SNYDER, J. P.

Description :
Greater use of the spheroidal form of the equidistant conic with two standard parallels (especially when chosen by minimum-error procedures) is encouraged because of its true meridian scale and low-error compromise between Lambert's conformal conic and Albers'conical equal-area projections. Scale errors and coordinates for the three major conic projections and for their spherical versus spheroidal forms are compared in representative tables for U. S. maps. Relative scale errors using projections based on the sphere rather than the spheroid may also be calculated with relatively simple formulas.


Type de document :
Article de périodique

Source :
Annals of the Association of American geographers Washington, 1978, vol. 68, n°. 3, p. 373-383, Références bibliographiques : 18 réf.

Date :
1978