Definitions for katabatic wind
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katabatic wind, catabatic wind(noun)
a wind caused by the downward motion of cold air
A drainage wind / fall wind: a wind, such as the bora or Bu00F6hmwind, which moves high density air from a higher elevation down an incline, due to the force of gravity.
Origin: See katabasis.
A katabatic wind, from the Greek word katabatikos meaning "going downhill", is the technical name for a drainage wind, a wind that carries high density air from a higher elevation down a slope under the force of gravity. Such winds are sometimes also called fall winds. Katabatic winds can rush down elevated slopes at hurricane speeds, but most are not as intense as that, and many are of the order of 10 knots or less. Not all downslope winds are katabatic. For instance, winds such as the Foehn, Chinook or Bergwind, are rain shadow winds where air driven upslope on the windward side of a mountain range drops its moisture and descends leeward drier and warmer. Examples of true katabatic winds include the Bora in the Adriatic, the Bohemian Wind or Böhmwind in the Ore Mountains, the Mistral, the Santa Ana in southern California, the Tramontane and the Oroshi in Japan. Another example is "The Barber," an enhanced katabatic wind that blows over the town of Greymouth in New Zealand when there is a southeast flow over the South Island. It is a wind that is known in the area for its coldness.
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"katabatic wind." Definitions.net. STANDS4 LLC, 2015. Web. 26 Nov. 2015. <http://www.definitions.net/definition/katabatic wind>.