English Dictionary

temperature inversion

noun

(meteorology) An atmospheric condition in which a cooler layer of air lies below a warmer layer of air that functions as a "ceiling" for the cooler layer, interfering with normal atmospheric circulation and trapping pollutants.

Temperature inversion occurs when the normal temperature pattern in the atmosphere is reversed, with warmer air above cooler air.

意味（1）

(meteorology) An atmospheric condition in which a cooler layer of air lies below a warmer layer of air that functions as a "ceiling" for the cooler layer, interfering with normal atmospheric circulation and trapping pollutants.

Temperature inversions can occur in perfectly clear skies. Samford said such an inversion was present in the Washington area early last Sunday, when up to a dozen unidentified flying objects appeared on radar screens both at Washington national airport and nearby Andrews air base.