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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 
fly-by method of barometric altimetry
Earth science; Mapping science
A method of determining barometric altitude identical to the two base method, except that the roving barometers are carried by air and read in the aircraft as it passes on a level ...
fixed
Earth science; Mapping science
A bench mark, point, position, station, etc., for which geodetic coordinates (longitude and latitude) or elevations have been determined by a previous adjustment or by a more ...
photographic film
Earth science; Mapping science
A thin, flexible, transparent sheet (film) of stable, plastic material (the base or film base) coated with a light sensitive material (the emulsion) and used for taking ...
centripetal force
Earth science; Mapping science
The force, in the direction of the normal, required to constrain a body to move in a closed, curved path. Centripetal force acts in the direction toward the center of curvature ...
horizontal magnetic field intensity
Earth science; Mapping science
The intensity of the horizontal component of the magnetic field in the plane of the magnetic meridian.
frequency drift
Earth science; Mapping science
A slow, nearly monotonic variation (drift) in frequency. For example, a slow rise or fall of the temperature of a crystal oscillator, or aging of the components in the circuit, ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)