monomictic lake

Monomictic lakes may be subdivided into Cold and Warm types.

Cold monomictic lakes are lakes that are covered by ice throughout much of the year.

Monomictic lakes are holomictic lakes that mix from top to bottom during one mixing period each year.

Lake Whatcom is a monomictic lake.

Warm monomictic lakes are lakes that never freeze, and are thermally stratified throughout much of the year.

The Blue Lake in Mount Gambier, South Australia is a large monomictic lake located in an extinct volcanic maar associated with the Mount Gambier maar complex.

In monomictic lakes the mixing occurs once per year; in dimictic lakes the mixing occurs twice a year (typically spring and autumn), and in polymictic lakes the mixing occurs several times a year.