21 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
Optical distance measuring equipment
Earth science; Mapping science
Distance-measuring equipment which contains an optical system essential to the measuring process; in particular, distance measuring equipment which contains an optical distance measuring instrument ...
Instrumental error
Earth science; Mapping science
A systematic error arising from imperfections in the instrument used. Instrumental errors may arise from imperfections which are built into an instrument, such as errors in the graduation of a ...
Feather
Earth science; Mapping science
To thin the edge of a photographic print made by abrading the back surface with sandpaper or emery paper. Also termed to feather edge. Prints are feathered before assembling them into a mosaic to ...
Along-track error
Earth science; Mapping science
That component, of the difference between the location of a satellite's location as computed from theory and the location estimated from observations by the method of least squares, which lies in the ...
Near-certainty error
Earth science; Mapping science
The difference (error) between the average value of a random quantity having a Gaussian distribution and the value of that quantity at three standard deviations from the average. (jargon)
Free fall
Earth science; Mapping science
The motion of a body moving under the influence of gravitational forces only. A body resting on the Earth's surface is not in free fall because it is subject not only to the Earth's gravitational ...
Absolute error
Earth science; Mapping science
The value, taken without regard to sign, of the difference between some value of a quantity and the true value of that quantity.
