two Rainbows seen in Iceland

A strange natural phenomenon was recently seen in Iceland. Two rainbows were seen at the same time. Hróbjartur Thorsteinsson explains this on the web of the Icelandic Met Office. It is uncommon to see a full circled rainbow, because a lot of raindrops have to be below the horizon. However, it is possible from a great height, from high skyscrapers, airplanes or steep mountain slopes. Often a second rainbow with a radius of 50¨ is also visible with reversed colors. Such outer rainbows are explained by more than one reflection in raindrops.More in Iceland Review

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