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

topographic base film

Earth science; Mapping science

A photographic film for use in aerial photography done for mapping purposes. The film has a dimensionally stable base.

A drafting instrument for drawing a circular arcs with a long radius. The point to be placed at the center of the arc's defining circle and the pen (or pencil tip) for drawing the arc are separate ...

asset allocation

Earth science; Mapping science

The process of deciding how to distribute an investor's wealth among different asset classes for investment purposes.

bar

Earth science; Mapping science

(1) A unit of pressure equal to 106 dynes per square centimeter. Formerly called the barye. It was first suggested by Bjerknes in 1911. In SI units, it is 105 newton/m² or 105 Pa. The unit is ...

geodetic azimuth mark

Earth science; Mapping science

A marked point established in connection with a triangulation (or traverse) station to provide a starting azimuth for dependent surveys. The geodetic azimuth from the station to the azimuth mark is ...

zonal aberration

Earth science; Mapping science

That defect of a lens system in which the focal point shifts when the aperture is decreased. It is the result of the combined effects of a number of optical aberrations.

batter board

Earth science; Mapping science

A horizontal board nailed horizontally to two substantial posts, with the upper edge of the board preferably at grade or at some whole number of feet above or below grade. Batter boards are ...