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

apoastron

Earth science; Mapping science

That point, in the orbit of a body about a sun, in which the body is farthest from the sun.

(1) That zone of the land lying between mean (ordinary) high water and the place, landward, where there is a marked change in material or physiographic form, or to the line where permanent vegetation ...

pseudo gravimetric anomaly

Earth science; Mapping science

A quantity g(x,z,M) intro-duced by Baranov (1957) to take into account not only the variation of gravitational attraction with horizontal (x) and vertical (z) distance, respectively, but also the ...

reciprocal vertical angle

Earth science; Mapping science

One of a pair of vertical angles of the same line measured close together in time and from opposite ends of the line, in trigonometric leveling, to reduce the effects of refraction. Reciprocal ...

relative accuracy

Earth science; Mapping science

(1) The square root of the average of the sum of the squares of the differences between (a) a set of measured or calculated values and a (b) set of corresponding correct values, divided by the ...

Abbe Prism

Earth science; Mapping science

A prism system consisting of two double right-angle prisms and reflecting an incoming ray four times to give an erect, inverted image.

geocentric angle

Earth science; Mapping science

An angle whose vertex is at a specified center of the Earth. Centers commonly specified are the center of mass, the center of an ellipsoid representing the geoid, and the center of an ellipsoidal ...