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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

patent ambiguity

Earth science; Mapping science

An ambiguity which appears on the face of the instrument and arises from the defective, obscure, or insensible language used.

asymmetry of object

Earth science; Mapping science

A lack of symmetry in the appear-ance of an object as seen from a particular point of observation, and caused by an actual asymmetry in the object or its aspect. It causes an ...

aquatone

Earth science; Mapping science

A printing process using a zinc plate which is gelatin coated, hardened, and sensitized to print type, line drawings, and halftones by an offset process.

batture

Earth science; Mapping science

(1) The gradual raising of the bed of a river or body of water by the accumulation of solid matter such as silt, soil, or gravel. (2) That portion of the bed of a river or body ...

Australian Geodetic Datum

Earth science; Mapping science

A geodetic datum in use before 1965 and based on a rotational ellipsoid with semi major axis 6 378 165 meters, flattening 1/298. 3. The origin was at CENTRAL (GRUNDY) with ...

antimeridian

Earth science; Mapping science

That meridian which is 180° of longitude from a given meridian. A meridian and its antimeridian constitute a complete great circle.

adjustment by conditions

Earth science; Mapping science

Adjustment of the lengths of sides and of angles between sides in a geodetic network by formulating each observation equation as an equality between the observed value and the ...