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04.12.13 News
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Picture of the Day

Kelvin-Helmholtz Cloud

Kelvin-Helmholtz clouds resemble breaking waves in the ocean. They are usually the most developed near mountains or large hills. Wind deflected up and over a barrier, like a mountain, continues flowing through the air in a wavelike pattern. Complex evaporation and condensation patterns create the capped tops and cloudless troughs of the waves.
Image credit: Benjamin Foster / UCAR