- Sektör: 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 ...
Multi-cycle, pop-up RAFOS floats, i.e. RAFOS floats that surface at regular intervals throughout their lifetime and transmit data via satellite.
Industry:Earth science
Multi-institutional cooperative experiment which took place in a deep water region (4700 m) about 650 km off Pt. Conception in central California. Two ships and two floating platforms were used to make measurements of the surface meteorological forcing and the temperature and current response of the near–surface layers in the ocean.
Industry:Earth science
Nitrite occupies an intermediate oxidation state in the marine inorganic nitrogen cycle between the most reduced form, ammonia, and the most oxidized form, nitrate. Nitrite accumulation therefore identifies either loci of importation across the ocean boundaries (allocthonous sources) or of water column nitrogen fluxes where nitrite produce exceeds nitrite utilization (autochthonous sources). The most significant biological processes contributing to nitrite production are denitrification including assimilatory and dissimilatory nitrate reduction and nitrification dominated by ammonia oxidation. Nitrite accumulation occurs when at least one of these processes exceeds the uptake capabilities of phytoplankton and/or bacteria.
Industry:Earth science
Noise that results in a spectrum where all frequency components have the same amount of energy. This can also refer the the resulting spectrum as well as the process. Compare to red noise.
Industry:Earth science
Noise with relatively enhanced low frequency power that results simply from serial correlation. The resulting power spectrum will have a negative slope. This is usually a good model for the noise component in a variety of climatic time series including proxy records, historical sea and air surface temperatures, and precipitation records. This type of noise can be explained in terms of the slow-response components of the climate system, such as the thermal inertia of the oceans, providing a memory that effectively integrates the forcing of such fast-reponse and more white noise-like components such as the weather. The produces a temporal persistence that leads to great noise energy at lower frequencies. Contrast with white noise.
Industry:Earth science
Of or containing calcium carbonate or another, usually insoluble, calcium salt.
Industry:Earth science
Of or pertaining to a lake or lakes, or of plants and animals growing in or inhabiting lakes.
Industry:Earth science
One of five vertical ecological zones into which the deep sea is sometimes divided. The is the lowest of the levels and is separated from the overlying abyssopelagic zone at about 6000 meters.
Industry:Earth science
One of five vertical ecological zones into which the deep sea is sometimes divided. This is the uppermost aphotic zone from 200 to 1000 m deep where little light penetrates and the temperature gradient is even and gradual with little seasonal variation. This zone contains an oxygen minimum layer and usually the maximum concentrations of the nutrients nitrate and phosphate. This overlies the bathypelagic zone and is overlain by the epipelagic zone.
Industry:Earth science
One of four principal types of estuaries as distinguished by prevailing flow conditions. In this type the water column is (as you might have guessed) well mixed with essentially no variation in salinity in a vertical column. The Thames estuary is an example of this type.
Industry:Earth science
