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Specialty Definition: EPILIMNION

DomainDefinition
Administration1: The upper, or top, layer of a lake or reservoir with essentially uniform warmer temperatures. The upper layer of water in a thermally stratified lake or reservoir. This layer consists of the warmest water and has a fairly constant temperature. The layer is readily mixed by wind action. See stratification. (references)
 2: The warm upper layer of a body of water with thermal stratification, which extends down from the surface to the Thermocline, which forms the boundary between the warmer upper layers of the emilimnion and the colder waters of the lower depths, or Hypolimnion. The epilimnion is less dense than the lower waters and is wind-circulated and essentially homothermous. Also see Thermal Stratification, Fall Overturn, and Spring Overturn. (references)
AgricultureThe 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. (references)
Environment1: The upper waters (above the metalimnion) of a thermally stratified lake. (references)
 2: Upper waters of a thermally stratified lake subject to wind action. (references)
GeologySee thermal stratification. (references)
WikipedicEpilimnion is the top-most layer in a thermally stratified lake, occurring above the deeper hypolimnion. It is warmer and typically has a higher pH and dissolved oxygen concentration than the hypolimnion. (references)

Source: compiled by the editor from various references; see credits.

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Extended Definition: Epilimnion

Epilimnion

Epilimnion is the top-most layer in a thermally stratified lake, occurring above the deeper hypolimnion. It is warmer and typically has a higher pH and dissolved oxygen concentration than the hypolimnion. Being exposed at the surface, it typically becomes turbulently mixed as a result of surface wind-mixing. It is also free to exchange dissolved gases (ie O2 and CO2) with the atmosphere.

See also: Lake stratification

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Source: adapted by the editor from Wikipedia, the free encyclopedia; from the article "Epilimnion". Image Credit.



Topics by Level of Interest: EPILIMNION

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Source: the editor, created by/for EVE to gauge likely levels of human interest in linguistically triggered topics (compiled across various sources, such as Wikipedia and specialty expression glosses).

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