What are the common weather conditions in areas controlled by subtropical high pressure?
Generally, areas controlled by subtropical high pressure often experience sunny and hot weather.
The eastern part of the subtropical high pressure is an area of strong subsidence movement. The downdraft airflow is warmed by thermal compression, and persistent sunny and hot weather will occur in the controlled area. The subtropical high pressure belt is located at 20 latitudes north and south. ° to 30° in subtropical areas. It is mainly formed because the rising air from the equatorial low-pressure belt reaches the upper air, and is affected by the pressure gradient force and flows to the upper air of the polar regions.
Due to the strong solar radiation in the equatorial region, the air in this region rises and flows poleward when it reaches high altitudes. The geostrophic deflection force generated by the rotation of the earth causes the air flow to continuously shift, with the northern hemisphere deflecting to the right and the southern hemisphere deflecting to the left. As the latitude increases, the geostrophic deflection force becomes greater, causing the airflow in the subtropical region to basically flow from west to east.
Introduction to the subtropical high
The subtropical high is an important member that controls atmospheric circulation changes and is one of the long-lasting, large-scale weather systems in the subtropical region. The subtropical high plays an important role in transporting water vapor, heat, and energy between mid- and high-latitude areas and low-latitude areas, and is the main weather system in summer weather.
The subtropical high pressure will change with the seasons, and the intensity and location of the subtropical high pressure belt will also undergo obvious seasonal changes. The subtropical anticyclone is elliptical in shape, with its long axis roughly parallel to the latitudinal circle. It is a large-scale, long-lasting warm and deep-scale weather system. It is the center of atmospheric activity that controls tropical and subtropical regions and is one of the important members of atmospheric circulation.
Reference for the above content: Baidu Encyclopedia—Subtropical High