Polymictic lake explained

Polymictic lakes are holomictic lakes that are too shallow to develop thermal stratification; thus, their waters can mix from top to bottom throughout the ice-free period. Polymictic lakes can be divided into cold polymictic lakes (i.e., those that are ice-covered in winter), and warm polymictic lakes (i.e., polymictic lakes in regions where ice-cover does not develop in winter).^[1] While such lakes are well-mixed on average, during low-wind periods, weak and ephemeral stratification can often develop.^{[2] [3]}

See also

• Amictic lake
• Holomictic lake
• Meromictic lake
• Monomictic lake
• Dimictic lake
• Thermocline

External links

• "Circulation: annual patterns of dimictic lakes" at Encyclopædia Britannica Online

Notes and References

1. 10.1139/f83-207 . Lewis . William M. Jr. . 1983 . A revised classification of lakes based on mixing . Canadian Journal of Fisheries and Aquatic Sciences . 40 . 10 . 1779–1787 . https://web.archive.org/web/20090306140542/http://cires.colorado.edu/limnology/pubs/pdfs/Pub058.pdf . 2009-03-06 .
2. Woolway. R. Iestyn. Meinson. Pille. Nõges. Peeter. Jones. Ian D.. Laas. Alo. 2017-02-02. Atmospheric stilling leads to prolonged thermal stratification in a large shallow polymictic lake. Climatic Change. 141. 4. 759–773. 10.1007/s10584-017-1909-0. 0165-0009. free.
3. Xing. Zikun. Fong. Derek A.. Yat-Man Lo. Edmond. Monismith. Stephen G.. January 2014. Thermal structure and variability of a shallow tropical reservoir. Limnology and Oceanography. 59. 1. 115–128. 10.4319/lo.2014.59.1.0115. 2014LimOc..59..115X. 0024-3590. free. 10356/100083. free.