trigonometric leveling

trigonometric leveling

[¦trig·ə·nə¦me·trik ′lev·əl·iŋ]
(engineering)
A method of determining the difference of elevation between two points, by using the principles of triangulation and trigonometric calculations.
References in periodicals archive ?
This could be very useful when combining old height determinations (which in many cases were measured with low accuracy methods, e.g, trigonometric leveling) or/and in cases of inconsistencies due to different datum definitions show up.
The first network was established in the early 1980s using trigonometric leveling (blue circles).
Surveying (cadastral mapping dependent on the state and trigonometric leveling network and drafting cadastral diagrams).