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Katabatic wind
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A katabatic wind (named from Ancient Greek κατάβασις (katábasis) 'descent') is a downslope wind caused by the flow of an elevated, high-density air mass into a lower-density air mass below under the force of gravity. The spelling catabatic[1] is also used. Since air density is strongly dependent on temperature, the high-density air mass is usually cooler, and the katabatic winds are relatively cool or cold.
Examples of katabatic winds include the downslope valley and mountain breezes, the piteraq winds of Greenland, the Bora in the Adriatic,[2] the Bohemian Wind or Böhmwind in the Ore Mountains, the Santa Ana winds in southern California, the oroshi in Japan, or "the Barber" in New Zealand[3].
Not all downslope winds are katabatic. For instance, winds such as the föhn and chinook 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.
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The NASA Scope and Subject Category Guide. NASA SP. Vol. 7603. National Aeronautics and Space Administration, Scientific and Technical Information Office, Center for Aerospace Information. 2000. p. 71. Retrieved 2018-01-17.
Katabatic winds (also catabatic)
- ^ Grisogono, Branko; BelušIć, Danijel (January 2009). "A review of recent advances in understanding the meso- and microscale properties of the severe Bora wind". Tellus A. 61 (1): 1–16. Bibcode:2009TellA..61....1G. doi:10.1111/j.1600-0870.2008.00369.x.
- ^ Wright, Les; Taonga, New Zealand Ministry for Culture and Heritage Te Manatu. "'The barber'". teara.govt.nz. Retrieved 2024-12-22.
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