inversion layer

American  

noun

1. a layer of the atmosphere in which there is a temperature inversion, with the layer tending to prevent the air below it from rising, thus trapping any pollutants that are present.

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Example Sentences

See Examples For:

inversion layer

An inversion layer — a weather phenomenon that acts like a lid on the blaze — lifted and the fire “started throwing some spots,” he said, referring to tossing embers that ignite spot fires.

From Los Angeles Times ● Sep. 8, 2025

This pushed air downwards, creating an inversion layer that trapped the smog close to the ground.

From BBC ● Dec. 5, 2023

Increased winds Tuesday pushed out a smoke inversion layer that had been stifling the blaze and gave fresh oxygen to the flames, McLean said.

From Seattle Times ● Sep. 14, 2022

And “we don’t expect a repeat tonight” of the heavy inversion layer and dense fog.

From Los Angeles Times ● Dec. 5, 2021

Beneath this level, perhaps even below 40,000 feet, lie all the strata, including the inversion layer, where the sun's heat is conserved and an equilibrium maintained.

From Astronomy: The Science of the Heavenly Bodies by David Peck Todd

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