下降風
下降風（Katabatic wind，Katabatic 源自希臘語 katabatikos，意思是下降），又可稱下坡風，是一種在谷地形成的局部性沉降氣流。夜間山脊的地表空氣比谷底空氣冷卻得更快。因此，較冷和密度較大的空氣從高處流向谷底，下坡風也從山區流向鄰近的低地。
南極的下降風示意圖
下降風
延伸閱讀
- Giles, Bill. Weather A-Z - Katabatic Winds By Bill Giles OBE（页面存档备份，存于）, BBC, Retrieved 2008-10-14
- McKnight, TL & Hess, Darrel (2000). Katabatic Winds. In Physical Geography: A Landscape Appreciation, pp. 131–2. Upper Saddle River, NJ: Prentice Hall. ISBN 0-13-020263-0
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