Dimictic lake

Dimictic lakes mix from the surface to bottom twice each year. Dimictic lakes are holomictic, a category which includes all lakes which mix one or more times per year. During winter, they are covered by ice. During summer, they are thermally stratified, with temperature-derived density differences separating the warm surface waters (the epilimnion), from the colder bottom waters (the hypolimnion).

Dimictic lake

Dimictic lakes mix from the surface to bottom twice each year. Dimictic lakes are holomictic, a category which includes all lakes which mix one or more times per year. During winter, they are covered by ice. During summer, they are thermally stratified, with temperature-derived density differences separating the warm surface waters (the epilimnion), from the colder bottom waters (the hypolimnion).