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

Compensation error

Earth science; Mapping science

The angle from the vertical through the compensator in a self levelling instrument to the line normal to the reflecting surface of the compensator's moving part.

Convergent camera

Earth science; Mapping science

An assemblage of two cameras mounted so as to have a fixed angle between their optical axes, and taking pictures simultaneously. The angular coverage is greater than that obtainable by a single ...

The problem of finding all practical operations for determining the inclination of a transit's horizontal axis of rotation as a function of the observed zenithal distance, taking the irregularity and ...

Buoy

Earth science; Mapping science

A structure made to float on the surface of the water or at a predetermined depth below the surface, and to carry instruments or serve as an aid to navigation. Buoys used as aids to navigation are ...

Chebychev adjustment

Earth science; Mapping science

The process of changing the values of a set of quantities so that the predicted values of a function of the set shall differ less, in absolute value, from the corresponding observed values of the ...

Chezy level

Earth science; Mapping science

A wye type levelling instrument having a level attached under the telescope. The invention of this instrument contributed in part to making the spirit-level type of levelling instrument popular.