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

Eckert's map projection

Earth science; Mapping science

One of six map projections devised by M. Eckert for mapping the entire sphere onto the plane in such a way that the poles are represented by straight lines half the length of the equator. Eckert's ...

Doppler shift

Earth science; Mapping science

The difference between the frequency fo of radiation received at a point and the frequency fs of the radiation when it was emitted, when observer and source are moving with respect to each other. ...

Döllen's method

Earth science; Mapping science

(1) A method for determining time or longitude by observing the passage (transit) of one or more circumpolar stars (time stars) through the vertical plane through Polaris. (2) The same as in the ...

Eccentricity of instrument

Earth science; Mapping science

The condition resulting from the combination of eccentricity of circle and eccentricity of alidade. The effect of eccentricity of instrument on an observed direction is eliminated by having the ...

Implied easement

Earth science; Mapping science

The privilege, by operation of law, to use the land of another for a particular purpose that arises in connexion with a conveyance when it was obvious that continued use before the conveyance was ...