air drainage

air drainage

[′er ′drān·ij]
(meteorology)
General term for gravity-induced, downslope flow of relatively cold air.
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References in periodicals archive ?
Pick a site with as much sun as possible, good air drainage and decent soil.
Increased gas density under pressure creates the potential for increased resistance to air drainage from the intrapleural space and through the PDU.
These occur in a hollow or bottom of a slope leading to a wall or fence where cold air becomes trapped preventing air drainage, so plants freeze.
Topography consists of south-sloping, open and dry plains with sandy, well-drained soils, creating ideal sun exposure and good air drainage to protect vineyards during winter months.
Tenders are invited for Salt Air Drainage Improvements.
Sites with adequate air drainage can reduce freeze damage and winter injury and north or northeast facing slopes are preferable, he said.