Epilimnion

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Epilimnion: Warm, less dense top layer in a stratified lake. Compare hypolimnion. Erosion: The wearing down or washing away of the soil and land surface by the action of water, wind, or ice. Escarpment: The topographic expression of a fault.

Epilimnion: Upper waters of a thermally stratified lake subject to wind action Equilibrium: The ability of an ecosystem to maintain stability among its biological resources (e.g., forest, fisheries, crops) so that there is a steady optimum yield ...

Thermocline The layer of water in a lake between the epilimnion and hypo-limnion in which the temperature exhibits the greatest difference in Minimum level of exposure to a specific pollutant which results in a detectable effect.

Lying below the epilimnion, this water rapidly loses warmth. Till Unstratified sediment deposited by a glacier; generally does not yield a good supply of water to a well.

epilimnion (EP-ub-LIM-knee-on). The upper layer of water in a thermally stratified lake or reservoir. This layer consists of the warmest water and has a fairly uniform (constant) temperature. The layer is readily mixed by wind action. erosion.

See also: Waste, Pollutant, Air, Condition, Water