What layer of the atmosphere do weather phenomena usually occur in?

Weather phenomena usually occur in the troposphere of the atmosphere. The atmosphere is divided into five layers, and the troposphere gathers three-quarters of the atmospheric mass and most of the water vapor, which has strong vertical movement, so the main weather phenomena and processes such as cold wave, typhoon, thunderstorm and lightning all occur in this layer. The vertical drop rate of temperature near the tropopause is abrupt, and the temperature is basically unchanged or slightly increased with height.

Brief introduction of troposphere

Troposphere refers to the atmosphere closest to the earth's surface and the lowest layer with the highest density in the atmosphere. The troposphere is called troposphere because it is influenced by different landforms such as forests, lakes, grasslands, beaches and mountains. And the temperature change caused by sunlight, which causes vertical and horizontal winds, that is, a large number of convection phenomena occur in the air.

The lower bound of the troposphere is connected with the ground, and the height of the upper bound varies with geographical latitude and season, and its height varies with latitude. The average height at low latitudes is 17 ~ 18km, at midlatitudes it is 10 ~ 12km, and at the polar regions it is 8 ~ 9km.

For example, in Beijing, China, the troposphere height is about 1 1 km, while in Guangzhou, the troposphere height increases to about 16 km, and decreases to 10 km in the northeast of China. And summer is higher than winter. Even on the same day in the same area, the height of the troposphere will change with the changes in the morning, middle and evening.