Mapping science

Mapping science

The systemic study of the processes and designs involved with map making.

Industry: Earth science

Add a new term

Contributors in Mapping science

Become a Contributors

Mapping science

sectional chart

Earth science; Mapping science

One of a series of aeronautical charts covering the United States of America at a scale of 1:500,000 and suitable for contact or visual navigation.

An instrument which allows two standards of length to be compared by translating the standards parallel to each other. The standards are placed parallel to each other on an bench one part of which ...

isogonic chart

Earth science; Mapping science

A chart on which lines (isogons) of constant angle from geodetic north to magnetic north are drawn.

bronze pendulum

Earth science; Mapping science

A quarter meter pendulum, used by the U. S. Coast and Geodetic Survey, made of aluminum-bronze consisting of one part of aluminum and nine parts of copper. Beginning in 1920, bronze pendulums were ...

long chord

Earth science; Mapping science

(1) On a simple curve, the chord, or the length of the chord, that extends from the point where a straight line ends and the curve begins (point of curvature) to the point where the curve ends and ...

callippic cycle

Earth science; Mapping science

A period of four Metonic cycles, equal to 76 Julian years or 27 759 days. It was introduced by Callippus, a Greek astronomer, about 350 B. C. as suggested improvement to the Metonic cycle for a ...

collinearity condition

Earth science; Mapping science

The condition that a point in object space, the corresponding point in image space, and the corresponding perspective center must be collinear (i.e., all lie on the same straight line). This is ...