Thermocline - Wikipedia
网页A thermocline (also known as the thermal layer or the metalimnion in lakes) is a distinct layer based on temperature within a large body of fluid (e.g. water, as in an ocean or lake; or air, e.g. an atmosphere) with a high gradient of …
Metalimnion | ecology | Britannica
网页In inland water ecosystem: Permanent bodies of standing fresh water. …between these layers is the metalimnion, a zone of rapid temperature change. With the onset of autumn, the epilimnion cools and the water becomes denser, …
Lake stratification - Wikipedia
网页Typically stratified lakes show three distinct layers: the epilimnion, comprising the top warm layer; the thermocline (or metalimnion), the middle layer, whose depth may change throughout the day; and the colder hypolimnion, extending to the floor of the lake.
Epilimnion, Metalimnion, and Hypolimnion of a Mesotrophic …
网页2020年2月18日 · The metalimnion (thermocline) which is characterized by a high vertical temperature gradient was found to accumulate a large amount of detritus and contain increased amounts of bacteria and algae cells (phytoplankton).
Delving deeper: Metabolic processes in the metalimnion of …
网页2017年3月9日 · We found that the metalimnion can contribute substantially to daily whole-lake metabolism across a broad range of lakes (mean 29–50% of GPP and 27–60% of ER), with the exception of highly eutrophic conditions (Figs. 3, 4).
Metalimnion - Vocab, Definition, and Must Know Facts | Fiveable
网页The metalimnion is a distinct layer in a stratified body of water, situated between the warmer, well-lit epilimnion above and the cooler, darker hypolimnion below. This layer is characterized by a rapid decrease in temperature with depth and plays a crucial role in oxygen dynamics and redox processes within aquatic environments, impacting the ...
Physical and biological contributions to metalimnetic oxygen …
网页2015年1月3日 · There were many instances of positive NEP in the metalimnion; however, net autotrophy was usually transient instead of persistent. Overall, biological production of O 2 alone is not responsible for metalimnetic O 2 maxima as both physical and biological processes contribute substantially to the formation and persistence of O 2 maxima in lakes.
Delving deeper: Metabolic processes in the metalimnion of …
网页2017年3月9日 · We evaluated the drivers of metalimnetic metabolism and its associated uncertainty across 10 stratified lakes in Europe and North America. We hypothesized that the metalimnion would contribute highly to whole-lake functioning in clear oligotrophic lakes, and that metabolic rates would be highly variable in unstable polymictic lakes.
The formation of a metalimnetic oxygen minimum exemplifies how ...
网页2020年5月15日 · The metalimnion is the layer of high temperature and density gradients at the transition between the upper continuously mixing epilimnion and the hypolimnion. The occurrence of MOMs is affecting aquatic biogeochemistry, limnetic communities and has been described in many lakes and reservoirs worldwide (Wetzel, 2001).
Stratification in Lakes - SpringerLink
网页In summer most of the lakes in the temperate climatic zone are stratified. The almost homothermal surface layer extending down to 5–20 m is called the epilimnion (Figure 2). Under it is the metalimnion, where the water temperature decreases rapidly. The plane with maximum decrease is called the thermocline.