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Category : Phenomenon

Green Canyon

Green Canyon

On the last weekend of November 2013, a rare weather phenomenon, occurs in the Grand Canyon, Arizona, USA. In the event that only occurs approximately every 10 years, the entire canyon shrouded with fog. While above the canyon, the sky was cloudless.

This phenomenon is known as the ‘temperature inversion’. Temperature inversion usually occurs in the winter when there are long nights, and as the name suggests, an inversion occurs when a layer of cold air trapped under warmer air, according to the National Weather Service (NWS). This is the opposite of the usual patterns, the temperature generally decreases with increasing altitude.

green canyon..

After sunset, the ground loses heat very quickly, and it cools the air that is in contact with the ground. However, because the air is very poor conductor of heat, the air above the surface of warm air. Conditions that support the development of strong surface inversion is calm winds, clear skies, and the nights are long that is exactly what happened in the Grand Canyon at the time.

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