Mapping science

Mapping science

The systemic study of the processes and designs involved with map making.

Industry: Earth science

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Mapping science

Intercalary calendar

Earth science; Mapping science

A calendar in which days are inserted or removed from time to time to make the length of the calendar year agree better with the length of the tropical year. Tropical year and the mean solar day ...

Centre of transit

Earth science; Mapping science

A manufacturer's term for the spindle or spindles which are upright when the transit is in use and about which the transit or a part of the transit rotates. The engineer's transit has two such ...

Comparison base line

Earth science; Mapping science

(1) The distance between two marked points, determined with highest possible accuracy, and used for calibrating baseline apparatus. (2) Two marked points, the distance between which has been so ...

Breakwater

Earth science; Mapping science

An offshore barrier erected to break the action of the waves of the open sea and thereby create calm water inside the barrier.

Extended Clairaut's equation

Earth science; Mapping science

The equation (a b)/a + (τ p - τ e )/ τ e =(5ω²a/2τ e ) - f(f + ω²a/τ e ) + aC4/4, in which τ p and τ e are the values of gravity acceleration at the poles and at the equator, respectively, ...

Bruns

Earth science; Mapping science

The formula ΔH = (W - U)/go, where W is the potential on a particular equipotential surface of the Earth and U is the potential on an equipotential ellipsoid; ΔH is the difference of elevation ...