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

Devisee

Earth science; Mapping science

The person to whom real property is given by will.

International date line

Earth science; Mapping science

A particular, hypothetical line on the Earth separating neighbouring regions in which the civil dates differ by one day. There is no international date line which has been formally adopted by the ...

(1) One of a set of three coordinates (u, Ψ, λ) of a point in a spheroidal coordinate system of given distance 2k between foci of the rotational ellipsoids of the system. Spheroidal coordinates are ...

Square degree

Earth science; Mapping science

(1) A unit of measure of solid angle corresponding to the area, on a sphere of unit radius, of a quadrangle composed of great arcs 1 o . on a side. There are 129 600/π (approximately 41 250. 87) ...

Photogrammetric datum

Earth science; Mapping science

(1) A surface, usually flat, to which elevations in the region being studied are referred. The surface is usually taken as nearly horizontal as possible. (2) The plane, corresponding to the ...

Ground-water dam

Earth science; Mapping science

A body of material that is impermeable or has only low permeability and occurs below the surface of the ground in such a position that it impedes horizontal movement of ground water and consequently ...