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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 > Physical oceanography 
fracture zone
Earth science; Physical oceanography
The official IHO definition for this undersea feature name is “an extensive linear zone of irregular topography, mountainous or faulted, characterized by steep–sided or ...
hill
Earth science; Physical oceanography
The official IHO definition for this undersea feature name is “an isolated (or group of) elevations(s), smaller than a seamount; see also abyssal hills and knoll.”
shoal
Earth science; Physical oceanography
The official IHO definition for this undersea feature name is “an offshore hazard to surface navigation with substantially less clearance than the surrounding area and composed of ...
absolute humidity
Earth science; Physical oceanography
The ratio of the mass of water vapor in a sample of moist air to a unit volume of the sample. It is expressed in grams per cubic meter and also called the vapor concentration.
abyssal hill
Earth science; Physical oceanography
Small hills found only in the deep sea which rise from the ocean basin floor with heights ranging from 10 to over 500 feet and widths from a few hundred feet to a few miles. They ...
abyssal zone
Earth science; Physical oceanography
This originally meant (before the mid-1800s) the entire depth area beyond the reach of fisherman, but later investigations led to its use being restricted to the deepest regions ...
abyssopelagic zone
Earth science; Physical oceanography
One of five vertical ecological zones into which the deep sea is sometimes divided. There is a pronounced drop in the number of species and the quantity of animals as one passes ...
Sub-categories
- Geology (10953)
- Mapping science (105290)
- Oceanography (12332)
- Physical oceanography (42660)
- Remote sensing (8661)
- Seismology (14406)
- Soil science (29216)