6 Terms
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Mapping science
The systemic study of the processes and designs involved with map making.
Industry: Earth science
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Mapping science
Bronze pendulum
Earth science; Mapping science
A quarter metre pendulum, used by the U. S. Coast and Geodetic Survey, made of aluminum-bronze consisting of one part of aluminium and nine parts of copper. Beginning in 1920, bronze pendulums ...
Black's method
Earth science; Mapping science
A method primarily of determining geodetic azimuths from astronomical observations, by measuring the angle θ' between a star and the marker of interest, the star and marker being at large zenith ...
Expanded Bouguer gravity anomaly
Earth science; Mapping science
(1) The quantity gBe obtained by subtracting from a gravity anomaly Δg the free air gravity correction δg f , the spherical Bouguer gravity correction δg Bs , and the topographic gravity correction ...
Bowie method of adjusting triangulation
Earth science; Mapping science
A variant of the arc method of adjusting a triangulation network, in which the length and azimuth of one side of a triangle at every junction between arcs (chains) are assumed correct and carried ...
Closing the horizon
Earth science; Mapping science
Measuring the last of a series of horizontal angles, at a station, such that the sum of the series is a multiple of 360 o . At any station, the sum of all horizontal angles between adjacent lines ...
Certificate of title
Earth science; Mapping science
(1) A document, usually given to the buyer of a home with the deed, stating that the title to the property is clear. It is usually prepared by an attorney or qualified person who has examined the ...
Rigid body
Earth science; Mapping science
A body which keeps its shape regardless of the forces imposed upon it. No actual bodies are completely rigid, but the concept is convenient in mechanics. For example, a good, approx-imate theory ...
