18 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
Two pendulum apparatus
Earth science; Mapping science
A pendulum apparatus having two working pendulums hanging from the same support. In use, the two pendulums are set swinging in opposite directions. The effect of flexure in the support is thereby ...
Apparent
Earth science; Mapping science
(1) As observed; as seen. (2) Measurable or observable, referring to characteristics of real or visible bodies. The term, common in the older scientific literature, is now used mostly by ...
Assessment work
Earth science; Mapping science
Work required to be performed annually by the claimant in order for him to maintain a possessionary right to a mining claim for which a patent has not been issued.
Airline distance
Earth science; Mapping science
The distance, along a great circle, between points on a sphere taken as equivalent to the figure of the Earth.
Aircraft altimetry
Earth science; Mapping science
Determining elevations from measurements made with an airborne altimeter.
Aphelion
Earth science; Mapping science
That point, in an elliptical orbit of a planet or comet, which is farthest from the Sun.
Vertical adjustment
Earth science; Mapping science
Adjustment of the elevations or differences of elevations in a vertical network.
