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

absolute accuracy

Earth science; Mapping science

Accuracy as determined by reference to a value that must be specified.

base density

Earth science; Mapping science

The photographic density of the material supporting a photographic emulsion.

backscatter

Earth science; Mapping science

(1) That energy which is scattered from a surface on which energy is incident and which lies within a hemisphere having its center on the surface and including the source of the ...

magnetic amplitude

Earth science; Mapping science

Amplitude relative to magnetic east or west.

azimuth determination from the sun's angular elevation

Earth science; Mapping science

Determination of astronomic azimuth by measuring the Sun's angular elevation, the angle of the marker from the Sun at that instant and the time of measurement. The formula is ...