- المجال: Education
- Number of terms: 34386
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Founded in 1876, Texas A&M University is a U.S. public and comprehensive university offering a wide variety of academic programs far beyond its original label of agricultural and mechanical trainings. It is one of the few institutions holding triple federal designations as a land-, sea- and ...
A writer or compiler of a dictionary or a glossary, i.e. a (relatively) harmless drudge.
Industry:Earth science
A zone of rapid transition between areas of aerobic and anaerobic decomposition in oceanic sediments. Its depth within the sediment depends on the quantity of organic matter available for decomposition and the rate at which oxygen can diffuse down from the overlying water. For example, in organic muds, relatively impermeable to oxygen-carrying water, the upper aerobic layer may only be a couple of millimeters deep, while in permeable sands with a low rate of organic input aerobic conditions can extend for tens of centimeters.
Industry:Earth science
Abbreviation for Sveriges Meteorologiska och Hydrologiska Institut or Swedish Meterological and Hydrological Institute. See the SMHI Web site150.
Industry:Earth science
Also called the obliquity of the ecliptic, this term is used to denote the tilt of the earth’s axis with respect to the plane of the earth’s orbit. This is one of the three main orbital perturbations (the other two being eccentricity and precession) involved in the Milankovitch theory and as such varies from about 22 to 25°. at a period of about 41,000 years. Obliquity perturbations tend to amplify the seasonal cycle in the high latitudes of both hemispheres simultaneously, with the effect small in the tropics and maximum at the poles.
Industry:Earth science
Also known as marine phytoplankton blooms or red tides. In this naturally occurring phenomenon for which instances are reported for around 300 species blooms with cell concentrations of several million per liter occur. About a fourth of the species produce toxins which cause damage or kill other flora and fauna in the area of the bloom.
Industry:Earth science
An abbreviation for high nutrient–low chlorophyll regions. These are mainly the waters of the subarctic Pacific, the Southern Ocean around Antarctica, and the equatorial Pacific. These are regions in which the biological pump is inefficient, i.e. the phytoplankton standing stocks are not large enough to assimilate the N and P in the surface waters to deplete them at any time through the year.
Industry:Earth science
An abbreviation for Mediterranean Targeted Project, a CEC/CGXII/MAST2 project engaged in oceanographic research activities in the Mediterranean Sea area during the period 1993–1996. It covers the disciplines of physics, chemistry, biology, geology, and biochemistry and involves approximately 180 scientists from 40 European instiutions and 14 countries.
Industry:Earth science
An acronym for radio detection and ranging, the use of reflected electromagnetic radiation to obtain information about distance objects. The wavelength used in normally in the radio frequency spectrum between 30 m and 3 mm.
Industry:Earth science
An active backscatter scatterometer operating at a frequency of 13.0 GHz which produced earth locatino and time tagged backscatter coefficients, surface wind stress, and surface wind vectors (with a 180 degree directional ambiguity).
Industry:Earth science
An additional velocity which must be added to the large-scale velocity to properly advect large-scale tracers in numerical circulation models. This is due to the effective transport velocity not being equivalent to the Langrangian-mean velocity when the diffusivity is not spatially homogeneous.
Industry:Earth science
