What are the three common types of lakes based on stratification patterns?

The three common lake types based on stratification patterns are polymictic lakes, dimictic lakes, and monomictic lakes. 

  • Polymictic lakes are lakes where the water column mixes completely from top to bottom
  • Dimictic lakes thermally stratify but the water column mixes top to bottom twice a year, generally in spring and fall. 
  • Monomictic lakes thermally stratify but mix from top to bottom only once a year.