Evaporation Ponds (IMAGE)

DOE/Lawrence Berkeley National Laboratory

Evaporation Ponds

Caption

In a conventional evaporation pond (left), incoming sunlight is absorbed, causing a bulk water temperature increase that leads to evaporation. With Berkeley Lab's proposed solar umbrella, incoming sunlight is converted into mid-infrared radiation, where water is strongly absorbing, thereby increasing surface temperature and evaporation rate while the bulk remains at a lower temperature.

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Berkeley Lab

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