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Water column - 2 reference results
Column
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Water column
A water column is a conceptual column of water from surface to bottom sediments. This concept is used chiefly for environmental studies evaluating the stratification or mixing (e.g. by wind induced currents) of the thermal or chemically stratified layers in a lake, stream or ocean. Some of the common parameters analyzed in the water column are: pH, turbidity, temperature, salinity, total dissolved solids, various pesticides, pathogens and a wide variety of chemicals and biota.

The concept of water column is quite important, since many aquatic phenomena are explained by the incomplete vertical mixing of chemical, physical or biological parameters. 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.

Hydrostatic pressure can be analyzed by the height of a water column, which effectively yields the pressure at a given depth of the column.

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Last updated on Friday July 11, 2008 at 21:32:38 PDT (GMT -0700)
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Column
Large Line of Cast Stone Columns, Fireplaces, Moldings and Much More!
Castlestone.YellowBookLeads.com
Water Column
Unique water features for the home. Browse & purchase online!
Sponsored Results www.ExaltedFountains.com
Current profiles trials throughout water column
Feb 01, 2001; Trials to obtain current profiles throughout the water column in water depths to 2,000 meters are being undertaken by Shell...
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Polar water column stability
Jun 01, 1999; ABSTRACT An expression is derived for the surface salt input needed to induce complete convective overturning of a polar water...
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British Antarctic survey purchases ASL water column profilers
Aug 01, 2002; ASL Environmental Sciences (Sidney, British Columbia, Canada) has announced the sale of two of its 120 kHz water column profilers...
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Relationships between heavy metal concentrations in the American oyster (Crassostrea virginica) and metal levels in the water column and sediment in Apalachicola Bay, Florida.
Jul 01, 2005; Abstract: This study aims to assess baseline concentrations of heavy metals (Cd, Cr, Cu, Pb and Zn) in the oyster soft tissue as...
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Vertical distribution of fish larvae and its relation to water column structure in the southwestern Gulf of California (1).
Oct 01, 2007; Abstract: The seasonal evolution of vertical distribution of fish larvae and its relationship with seasonal stratification, as...
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