Vikaantuminen

Vikaantuminen, also known as inversion, is a meteorological phenomenon where a layer of warm air is situated above a layer of cooler air. This situation is the opposite of the normal atmospheric stratification, where temperature generally decreases with altitude. Inversion layers can form under various conditions, such as during the night when the ground cools rapidly, leading to a cooler layer of air near the surface. Inversions can also occur due to the presence of a warm air mass moving over a cooler surface, like a cold ocean current.

Inversions have significant impacts on weather patterns and air quality. They can trap pollutants near the surface, leading to poor air quality, especially in urban areas. During inversions, the air near the ground becomes stagnant, preventing the dispersion of pollutants. Additionally, inversions can affect weather patterns by altering the movement of air masses and the formation of clouds and precipitation.

Inversions can be temporary or persistent, depending on the underlying causes. Temporary inversions often dissipate with the onset of daytime heating, while persistent inversions can last for extended periods. Understanding inversions is crucial for weather forecasting, air quality monitoring, and various environmental studies.