The subtropical high, which has great influence on China, is located in.

The subtropical high, which has great influence on China, is located in the Pacific Ocean.

Brief introduction of Pacific subtropical high;

The Pacific subtropical high is oblate in most cases, with multiple centers and one center. Its intensity, scope and structure are closely related to the weather in China. If the "subtropical high" is in the average position all the year round, then the climate is normal everywhere.

On the contrary, if the "subtropical high" deviates from the average position all the year round, there will be a climate different from that all the year round.

Second, the influence of Pacific subtropical high on meteorology:

From the meteorological professional point of view, there is a downward flow prevailing in the subtropical high, and the air warming is strong; In addition, the pressure gradient is small, so the wind force is very small. In this state, solar radiation can reach the ground more, making the ground and near-earth atmosphere get more heat, and the atmospheric temperature rises obviously.

Therefore, in areas controlled by subtropical high, cloudy and hot weather is often dominant. If the subtropical high is strong, there will be drought disasters in this area.

The influence of subtropical high on typhoon and rain belt;

I. Influence of subtropical high on typhoon

Generally speaking, when the subtropical high is east-west banded and its intensity is stable, the typhoon on the south side of it will move westward and its path will be stable; However, if the intensity of the subtropical high is not strong, when the typhoon moves to the southwest, it will cause the subtropical high to move eastward and the typhoon may turn to the north. In addition, the typhoon can break the weak subtropical high and pass through it.

Secondly, the influence of subtropical high on rain belt.

As the subtropical high moves from south to north, there will be a rainy season in South China, Jiangnan-middle and lower reaches of the Yangtze River-Jianghuai Basin, North China and Northeast China from March to April every year.

The intensity and location of subtropical high are closely related to the weather, climate, drought and flood in central and eastern China, which determines the distribution of rain belts in central and eastern China. When it moves one step to the north, the area will be stormy, and even the rainy days in the "jurisdiction area" will be "cut off" and enter the summer drought period.

In summer, the subtropical high generally has three obvious "northward jump" stages, which correspond to the beginning of meiyu period and rainy season in North China respectively.