katabatic

American  

[kat-uh-bat-ik] / ˌkæt əˈbæt ɪk /

adjective

Meteorology.

1. (of a wind or air current) moving downward or down a slope.

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katabatic British  

/ ˌkætəˈbætɪk /

adjective

1. (of winds) blowing downhill through having become denser with cooling, esp at night when heat is lost from the earth's surface Compare anabatic

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katabatic Scientific  

/ kăt′ə-băt′ĭk /

1. Relating to wind currents that blow down a gradient, especially down the slopes of a mountain or glacier. When air comes in contact with the cool surface of a glacier or the upper regions of a mountain or slope, the air cools, becomes dense, and blows downward. Katabatic winds are usually cool and are especially common at night in polar regions.

2. Compare anabatic

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Etymology

Origin of katabatic

1915–20; < Greek katabatikós pertaining to going down, equivalent to kata- kata- + ba- (stem of baínein to go; basis ) + -tikos -tic

Example Sentences

The vast Himalayan glaciers cool enormous air masses that slide downslope under gravity, creating what scientists call katabatic winds.

From Science Daily

The warming climate is triggering a cooling reaction in the glaciers: it is causing cold winds -- katabatic winds -- to flow down the slopes.

From Science Daily

He said he hopes that the research on the role of Foehn and katabatic winds in polar regions will help the climate science community strengthen the physical fidelity of Earth system models.

From Science Daily

Like other downslope, or katabatic, winds, the Santa Anas form because of differences in temperature and topography.

From Science Magazine

These are likely Martian versions of the katabatic winds that batter Antarctica.

From The Guardian