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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 
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.
beam compass
Earth science; Mapping science
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 ...
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 ...
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 ...
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. ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)