Earth science

Earth science

Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.

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Earth science > Mapping science

altimeter correction

Earth science; Mapping science

One of the corrections which must be made to the readings of a barometric altimeter to obtain true altitude. Among these corrections are a correction for difference of local ...

analytical nadir point aerotriangulation

Earth science; Mapping science

Radial aerotriangulation done by computations in which nadir points are used as radial centers.

orbital altitude

Earth science; Mapping science

The average altitude of a satellite above the surface of the primary body.

air drag

Earth science; Mapping science

Resistance of the air to motion of a body moving in it. The term is applied, in particular, to (a) the resistance of the air to aircraft, projectiles, and artificial ...

back fill

Earth science; Mapping science

Waste rock or other material filling a mined out stope to prevent caving in.

azimuth determination from the rate of change of zenith distance

Earth science; Mapping science

A variant of the astronomic direction method, in which the astronomic azimuth of a star is calculated from the rate of change of zenith distance with time.