12 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
absolute accuracy
Earth science; Mapping science
Accuracy as determined by reference to a value that must be specified.
base density
Earth science; Mapping science
The photographic density of the material supporting a photographic emulsion.
backscatter
Earth science; Mapping science
(1) That energy which is scattered from a surface on which energy is incident and which lies within a hemisphere having its center on the surface and including the source of the radiation. (2) That ...
azimuth determination from the sun's angular elevation
Earth science; Mapping science
Determination of astronomic azimuth by measuring the Sun's angular elevation, the angle of the marker from the Sun at that instant and the time of measurement. The formula is cot²(½ A s ) = ...
aperture ratio
Earth science; Mapping science
The ratio of the effective aperture of a lens system to its focal length.
arc of parallel
Earth science; Mapping science
A part of an astronomic or geodetic parallel of latitude.
