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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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Add a new termContributors in Earth science
Earth science > Oceanography 
ebb tide
Earth science; Oceanography
Time during the tidal period when the tide is falling. Compare with flood tide.
multi-beam echo-sounding
Earth science; Oceanography
Using the same principles as single-beam echo-sounding, multi-beam or swathe echo-sounding is a method of hydrographic survey using hull-mounted arrays which transmit sound beams ...
Kelvin-Helmholtz billows
Earth science; Oceanography
Vortical structures that result from the growth and nonlinear development of unstable waves in a shear flow. The billows get their name from the instability responsible for the ...
wave refraction
Earth science; Oceanography
Wave refraction is the process by which wave crests are bent according to variations in seabed contours. This is because as a wave enters shallow water its speed becomes a ...
gravity wave
Earth science; Oceanography
Waves that propagate under the influence of buoyancy forces. Gravity waves include surface gravity waves, such as waves on the surface of the ocean, interfacial gravity waves, ...
Poincare wave
Earth science; Oceanography
Within a channel in a rotating system, a Poincare' wave has sinusoidally varying cross-channel velocity with an integral or half integral number of cross-channel waves spanning ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)