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

standard artillery atmosphere

Earth science; Mapping science

A set of values describing atmospheric conditions on which ballistic computations are based, namely: a surface temperature of 15°C; a surface pressure of 1000 millibars; a relative humidity at the ...

duplex base line apparatus

Earth science; Mapping science

A contact base-line apparatus consisting of two disconnected bars, one of brass and the other of steel, each 5 meters in length and so arranged as to indicate the accumulated differences of length of ...

appulse

Earth science; Mapping science

The near approach of one celestial body to another on the celestial sphere, as in conjunction or occultation.

longitudinal axis

Earth science; Mapping science

An axis generally along the main body of a craft, in the direction of motion. Its precise definition is usually set by the constructor of the craft. It frequently serves as a reference for ...

critical aperture

Earth science; Mapping science

That aperture (2) for which the unsharpness caused by diffraction most nearly balances the unsharpness caused by aberration.

acetate proof

Earth science; Mapping science

An inked proof made by printing from type on thin sheets of acetate film. It can be used as a positive for making photographic negatives by contact or directly for making a positive flat.

August's map projection

Earth science; Mapping science

A conformal map projection of the whole sphere into a two cusped epicycloid. It was published by F. August in 1874. The sphere is first mapped conformally onto a disk. A two cusped epicycloid ...