What are the climatic characteristics of downward flow?

The climate of downflow is characterized by sunny and dry weather, less precipitation and warmer climate.

When the airflow sinks, it will become warmer and drier, resulting in less precipitation. Because of the high temperature near the ground, the high-altitude airflow will heat up when it meets hot air. From a meteorological point of view, it is not easy to condense when it meets heat. The most common subtropical high control is downdraft.

The weather is controlled by subtropical high, with clear skies, cloudless or partly cloudy in Wan Li and Wan Li, and very hot in summer. This situation is rare in winter. If it happens in spring and autumn, it will be sunny and pleasant. This kind of weather is frequent in midsummer and lasts for a long time. It will only be relieved when there is strong cold air in the north going south and thunderstorms and strong winds.

Causes of downward flow

Downward flow means that the downward movement of air is governed by Newton's law, and the forces are mutual, so this airflow can exert an upward force on an object.

Convection caused by atmospheric stratification instability, in which heat, momentum and mass (including water vapor) are exchanged with the surrounding atmosphere, thus changing the state of the surrounding atmosphere. In the atmosphere, the airflow in the high pressure area and the airflow in the low pressure area circulate with each other, which makes the dry and wet changes of the earth's environment alternate in four seasons.