Which mechanism causes thermocline formation after prolonged solar radiation on a freshwater lake with low turbidity?

💡 Explanation

When solar radiation heats the surface, a thermocline forms because temperature stratification generates buoyancy that resists vertical mixing, creating a sharp temperature gradient. Therefore, buoyancy-driven stabilization dominates preventing full water column mixing, rather than overturning, uniform cooling, or sediment-driven advection which require different density or mixing forces.

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