What is an inversion in atmospheric terms?

In atmospheric science, an inversion specifically refers to a situation where temperature increases with elevation rather than the typical decrease as altitude increases. This creates a stable layer of warm air above cooler air, which can have significant implications for air quality and pollutant dispersion.

The correct understanding of an inversion as a stable condition where cooler air is near the ground is crucial. Under such conditions, the cooler air is trapped beneath the warmer air, leading to stability in the atmosphere. As a result, vertical mixing is limited, which can cause pollutants to accumulate near the surface instead of dispersing. This phenomenon is common in urban environments during temperature inversions, contributing to higher concentrations of smog and other pollutants.

Recognizing this particular layering is important for environmental engineers and meteorologists, as it directly affects air quality and forecasting. The presence of a temperature inversion can lead to scenarios where harmful pollutants remain concentrated at ground level, posing risks to public health and the environment.