What is an anticyclone?

An anticyclone is defined as a center of high-pressure regions in the atmosphere. In meteorology, high-pressure areas are where the atmospheric pressure is greater than that of the surrounding areas. These high-pressure systems are associated with descending air, which leads to clearer skies and stable weather conditions.

Anticyclones are typically characterized by outward airflow at the surface, and as air descends and warms, the moisture in it tends to evaporate, resulting in the clear, calm weather often found in regions influenced by these systems. In contrast, low-pressure systems, which were mentioned in some of the incorrect options, are associated with rising air, cloud formation, and precipitation.

Understanding anticyclones is crucial because they significantly influence weather patterns and climate in various regions, leading to prolonged periods of fair weather when dominant.