Stratification — is the building up of layers, and can have several meanings *Social stratification, is the dividing of a society into levels based on wealth or power. *Stratification in archaeology is the formation of layers (strata) in which objects are found.… … Wikipedia
Stratification (water) — Water stratification occurs when water of high and low salinity (halocline), as well as cold and warm water (thermocline), forms layers that act as barriers to water mixing. See also *Meromictic … Wikipedia
Pelagic Ecology of the Low Salinity San Francisco Estuary — Pelagic organisms spend all or part of their lives in the open water, where habitat isdefined not by edges but by physiological tolerance to salinity and temperature. The LowSalinity Zone (LSZ) of the San Francisco Estuary constitutes a habitat… … Wikipedia
Ecology of the San Francisco Estuary low salinity zone — The low salinity zone (LSZ) of the San Francisco Estuary and Delta represents a highlyaltered ecosystem. The region has been heavily re engineered to accommodate the needs ofwater delivery, shipping, agriculture, and most recently, suburban… … Wikipedia
Wüst, Georg — ▪ German oceanographer in full Georg Adolf Otto Wüst born June 15, 1890, Posen, Ger. [now Poznán, Pol.] died Nov. 8, 1977, Erlangen, W.Ger. German oceanographer who, by collecting and analyzing many systematic observations, developed the … Universalium
sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… … Universalium
inland water ecosystem — ▪ biology Introduction complex of living organisms in free water on continental landmasses. Inland waters represent parts of the biosphere within which marked biological diversity, complex biogeochemical pathways, and an array of… … Universalium
lake — lake1 /layk/, n. 1. a body of fresh or salt water of considerable size, surrounded by land. 2. any similar body or pool of other liquid, as oil. 3. (go) jump in the lake, (used as an exclamation of dismissal or impatience.) [bef. 1000; ME lak(e) … Universalium
Lake — /layk/, n. Simon, 1866 1945, U.S. engineer and naval architect. * * * I Relatively large body of slow moving or standing water that occupies an inland basin. Lakes are most abundant in high northern latitudes and in mountain regions, particularly … Universalium
hydrologic sciences — Introduction the fields of study concerned with the waters of the Earth. Included are the sciences of hydrology, oceanography, limnology, and glaciology. In its widest sense hydrology encompasses the study of the occurrence, the… … Universalium