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Wikipedia

Water column

A water column is a conceptual column of water from the surface of a sea, river or lake to the bottom sediment.[1] Descriptively, the deep sea water column is divided into five parts—pelagic zones (from Greek πέλαγος (pélagos), 'open sea')—from the surface to below the floor, as follows: epipelagic, from the surface to 200 meters below the surface; mesopelagic, from 200 to 1000 meters below the surface; bathypelagic, from 1000 to 4000 meters below the surface; abyssopelagic, from 4000 meters below the surface to the level sea floor; hadopelagic, depressions and crevices below the level sea floor.

Deep sea water column

The concept of water column is useful since many aquatic phenomena are explained by the incomplete vertical mixing of waters with discrete chemical, physical or biological characteristics. For example, when studying the metabolism of benthic organisms, it is the specific bottom layer concentration of available chemicals in the water column that is meaningful, rather than the average value of those chemicals throughout the water column.

Water columns are used chiefly for environmental studies evaluating the stratification or mixing of the thermal or chemically stratified layers in a lake, stream or ocean: for example, by wind-induced currents. Some of the common parameters analyzed in the water column are pH, turbidity, temperature, hydrostatic pressure, salinity, total dissolved solids, various pesticides, pathogens and a wide variety of chemicals and biota.

The term water column is also commonly used in scuba diving to describe the vertical space through which divers ascend and descend.

See also

References

  1. ^ Munson, B.H., Axler, R., Hagley C., Host G., Merrick G., Richards C. (2004). "Glossary". Water on the Web. University of Minnesota-Duluth. Retrieved 27 May 2014.

External links

    water, column, this, article, about, division, different, water, depths, ocean, railroad, device, water, crane, unit, measurement, inch, water, pressurisation, device, water, tower, this, article, relies, largely, entirely, single, source, relevant, discussion. This article is about the division of different water depths in the ocean For the railroad device see water crane For the unit of measurement see Inch of water For the pressurisation device see water tower This article relies largely or entirely on a single source Relevant discussion may be found on the talk page Please help improve this article by introducing citations to additional sources Find sources Water column news newspapers books scholar JSTOR May 2020 A water column is a conceptual column of water from the surface of a sea river or lake to the bottom sediment 1 Descriptively the deep sea water column is divided into five parts pelagic zones from Greek pelagos pelagos open sea from the surface to below the floor as follows epipelagic from the surface to 200 meters below the surface mesopelagic from 200 to 1000 meters below the surface bathypelagic from 1000 to 4000 meters below the surface abyssopelagic from 4000 meters below the surface to the level sea floor hadopelagic depressions and crevices below the level sea floor Deep sea water column The concept of water column is useful since many aquatic phenomena are explained by the incomplete vertical mixing of waters with discrete chemical physical or biological characteristics For example when studying the metabolism of benthic organisms it is the specific bottom layer concentration of available chemicals in the water column that is meaningful rather than the average value of those chemicals throughout the water column Water columns are used chiefly for environmental studies evaluating the stratification or mixing of the thermal or chemically stratified layers in a lake stream or ocean for example by wind induced currents Some of the common parameters analyzed in the water column are pH turbidity temperature hydrostatic pressure salinity total dissolved solids various pesticides pathogens and a wide variety of chemicals and biota The term water column is also commonly used in scuba diving to describe the vertical space through which divers ascend and descend See also EditHydrological transport model Pelagic zoneReferences Edit Munson B H Axler R Hagley C Host G Merrick G Richards C 2004 Glossary Water on the Web University of Minnesota Duluth Retrieved 27 May 2014 External links EditWater column ecology Retrieved from https en wikipedia org w index php title Water column amp oldid 1104731518, wikipedia, wiki, book, books, library,

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