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Cloud Seeding Microphysics (2D)

A 2D canvas lab of cloud droplet formation: aerosol nuclei activate into droplets once ambient supersaturation crosses their Köhler threshold, grow by Maxwell diffusional growth, and rain out past the autoconversion radius — with a seeding burst that glaciates droplets via the Bergeron–Findeisen process when it's cold enough.

Physics & Mechanics2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

This 2D companion strips the 3D scene down to the physics: aerosol nuclei drift through the frame, activate into droplets once the ambient supersaturation passes their Köhler threshold, and grow according to the Maxwell diffusional growth law until they cross the autoconversion radius and fall as rain. Cooling the air below 0°C and firing a seeding burst switches the newly activated particles onto the Bergeron–Findeisen path, letting ice crystals glaciate and grow at far lower supersaturation than liquid droplets need.

⚙ Under the hood

Köhler-theory activation, Maxwell diffusional droplet growth, an autoconversion threshold for rain, and a seeding burst that triggers ice-phase (Bergeron–Findeisen) growth below freezing.

cloud seedingmicrophysicsKöhler theoryice nucleationBergeron-Findeisenprecipitation

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install