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Lake Stratification & Turnover Simulator

Interactive 3D lake cross-section: watch the epilimnion, thermocline and hypolimnion form through the year, and see fall and spring turnover mix the whole water column when surface and bottom temperatures converge.

Ecology & Conservation Biology3DModerate60 FPS💧 Water ❄️ Ice & Cold

A cutaway 3D lake, coloured by depth temperature, running through a full seasonal cycle. Scrub the month slider or press "Start annual cycle" to watch the epilimnion, thermocline and hypolimnion form in summer, collapse during fall turnover, weaken under winter ice, and mix again in spring — the annual cycle that reoxygenates the deep water and resupplies surface nutrients in every temperate lake.

⚙ Under the hood

A cutaway 3D lake, colored by depth temperature, running through a full seasonal cycle — watch the epilimnion, thermocline and hypolimnion form in summer, collapse during fall turnover, weaken under winter ice, and mix again in spring.

limnologylake stratificationthermoclineturnoverfreshwater ecologyepilimnionhypolimnionThree.js

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install