Tag Archives: clouds

Pileus

Posted on 2014-08-20 by arjaybe

Cloud of the Day – Pileus A pileus cloud is one that forms on top of another cloud, forming a cap. The term pileus comes from the Latin for felt cap, of the sort worn in ancient Greece and Rome. … Continue reading →

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Rainbow

Posted on 2014-08-10 by arjaybe

Cloud of the Day – Rainbow There are many optical meteorological phenomena, and we’ve discussed a few, including aurora, halo and corona. Today’s example is the rainbow. Rainbow is a good name. It’s bow-shaped and it forms in rain. To … Continue reading →

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Irisation

Posted on 2014-07-27 by arjaybe

Cloud of the Day – Irisation A close relative of corona is irisation. Both are caused by interference among light waves diffracted by cloud particles. Since different wavelengths of light are scattered at different angles, they interfere with themselves at … Continue reading →

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