On the Azimuth Determination

Abstract

In Geomatics Engineering, the direction of a line should be determined with respect to a reference meridian. A reference meridian can be real or imaginary and its direction is known. The lines being surveyed such as boundaries are angularly tied to this fixed line that joins the north and south poles. Directions are horizontal angles and may be expressed as an azimuth or bearing. Six basic classifications of meridians are astronomic meridian, geodetic meridian, magnetic meridian, geomagnetic meridian, grid meridian, and assumed meridian. This paper covers the fundamental theory and practical applications of the azimuth determination.