Orographic clouds along a ridge.We are all familiar with the stunning lenticular clouds that form ov

Orographic clouds along a ridge.We are all familiar with the stunning lenticular clouds that form over a mountain as the air is diverted upwards over it and its moisture condenses into relatively stationary clouds as the air current passes through, reevaporating as the air drops on the other side like the one in this past post available at http://tinyurl.com/kbl22df. The principle remains the same when air passes over a ridge and forms a long line of cloud through the same process.This image was taken by NASA’s EO1 satellite over the Sichuan Basin in China, where lines of parallel forest covered ridges 1,000 metres high, within a lower area surrounded by high peaks, produce the effect. The valleys between the ridges are used for agriculture.LozImage credit: NASA -- source link

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