Why is the western Pacific subtropical high an important weather system affecting China?

This short-term change lasts for different lengths of time. If we take one advance and one retreat as a cycle, the longer cycle can reach 15 ... It can be seen that the peripheral system and the western Pacific subtropical high interact, and its influence depends on the peripheral system and the western Pacific subtropical high ... The above phenomenon is only the general law of the influence of the western Pacific subtropical high activity on China's weather. The western Pacific subtropical high has an important influence on the weather and climate in China ... It can be seen that the surrounding system and the western Pacific subtropical high interact with each other, and its influence depends on the influence of the surrounding western Pacific subtropical high on the weather in China, especially in summer. Subtropical high is an important system for transporting water vapor to Chinese mainland. The water vapor source of precipitation in China mainly depends on the southwest airflow system and the development degree of the western Pacific subtropical high, which has a very important influence on the weather in China, especially in summer.