Original scientific paper

Standard Parallel and Secant Parallel in Azimuthal Projections

Miljenko Lapaine orcid.org/0000-0002-9463-2329 ; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia

Abstract

It is commonly assumed that standard parallels and parallels that appear as the intersections of a developable surface and a sphere or ellipsoid coincide. This paper shows that this is not true of azimuthal projections which are equidistant along meridians, equidistant along parallels (orthographic), and equal-area, because there is no standard parallel at all in such projections. Only some azimuthal conformal (stereographic) projections have standard parallel, in which case it coincides with secant parallel.

Keywords

map projection; azimuthal projection; standard parallel; secant parallel

Hrčak ID:

195547

URI

https://hrcak.srce.hr/195547

Publication date:

15.12.2017.

Article data in other languages: croatian

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