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

Centre of circle

Earth science; Mapping science

That point, in the plane of a circle, which is equidistant from all points of the circle. Lines drawn from the centre of circle to points on the circle are called radii.

Local chart

Earth science; Mapping science

A large-scale aeronautical chart designed for contact flight in a congested region.

Cylindrical Bouguer gravity correction

Earth science; Mapping science

The quantity δg Bc (≡ 2πGh² ρ/2a) representing the force per unit mass, or acceleration, caused by the attraction of a cylindrical solid of density ρ, radius a and height h on a unit mass located ...

Primary great circle

Earth science; Mapping science

(1) A great circle as one of the reference figures for the origin of a coordinate system. (2) In particular, such a circle 90 o from the poles of a spherical-coordinate system, such as the ...

Co- tidal chart

Earth science; Mapping science

(1) A chart displaying lines that show approximate locations of high water at hourly intervals, measured from a reference meridian (usually Greenwich).

Isoclinic chart

Earth science; Mapping science

A chart of which the chief feature is isoclinic lines each for a different value of the magnetic inclination along the corresponding line on the Earth.