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Convection cell
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===Adiabatic processes=== Heating caused by the compression of descending air is responsible for such winter phenomena as the [[chinook wind|chinook]] (as it is known in western North America) or the [[Foehn wind|Fรถhn]] (in the Alps). [[File:Granulation Quiet Sun SST 25May2017.webm|left|thumb|Movie of the solar photosphere observed with the Swedish 1-m Solar Telescope (SST) on La Palma, Spain. The movie shows solar granulation which is a result of convective motions of bubbles of hot gas that rise from the solar interior. When these bubbles reach the surface, the gas cools and flows down again in the darker lanes between the bright cells. In these so-called intergranular lanes, we can also see small bright points and more extended bright elongated structures. These are regions with strong magnetic fields.]]
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