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

Acoustical distance-measuring equipment

Earth science; Mapping science

Distance - measuring equipment which measures the difference between the time at which a pulse of sound was emitted and the time at which the echo is received, and converts this to a distance. This ...

Augmenting factor

Earth science; Mapping science

A factor used in making a harmonic analysis of tides or tidal current, because the tabulated hourly heights or speeds used in the summation for any constituent other than S do not in general occur on ...

Farmland

Earth science; Mapping science

(1) Land used specifically for agriculture such as the raising of crops or livestock. It may consist of part or all of a single farm, or it may be made up of many contiguous farms. (2) Land ...

Clamping error

Earth science; Mapping science

A systematic error, occurring in observations made with a repeating theodolite, caused by strains set up by the clamping devices of the instrument.

Prismatic error

Earth science; Mapping science

The error caused by lack of parallelism of the two faces of an optical element such as an optical filter.

Actual error

Earth science; Mapping science

(1) The measured value of a physical quantity minus the true value of that quantity. (2) The sum of all those systematic and random errors which have not been eliminated from the final, adopted, ...

Random error

Earth science; Mapping science

An error produced by irregular causes whose effects upon individual measurements are governed by no known law connecting them with circumstances and which therefore can never be subjected to ...