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

Contrast enhancement

Earth science; Mapping science

Exaggeration of the ratios between densities of elements of an image.

Critical configuration

Earth science; Mapping science

An arrangement of points such that the set of equations for the location of an unknown point in terms of the distances and angles between known points and the unknown point does not have a unique ...

Tide-gage datum

Earth science; Mapping science

A horizontal plane defined at a particular, arbitrary distance below a tide-gage bench mark and from which tidal heights at a tide gauge are, in theory, measured. In the period between successive ...

Longshore current

Earth science; Mapping science

A current paralleling the shore and occurring largely within the surf zone. It is caused by the excessive water brought to the zone by the small, net transport of water by wind waves. Longshore ...

(1) The depth to which material is to be excavated (cut) to give the surface a predetermined slope. It is the difference in elevation of a point on the surface and a point on the proposed subgrade ...

Shadowed contour line

Earth science; Mapping science

A contour line whose thickness varies to give the effect of a shadow thrown by oblique illumination on a plate having the thickness of the contour interval. Incorrectly called a shadowed contour.