What's the climate like in the east, southeast and south of the Asian continent? What are the similarities? What is the main reason?

In the eastern part of Eurasia, the climate is temperate monsoon and subtropical monsoon, and the dividing line is Qinling Huaihe River.

The climate in the southeast and south is tropical monsoon climate.

Similar: monsoon climate, rain and heat at the same time, summer precipitation is rich and concentrated, suitable for rice growth.

Reason:

East Asia: the thermal difference between land and sea, the specific heat capacity of the ground is greater than that of the ocean, and the land cools down quickly and the temperature is low in winter, forming a high pressure and prevailing the northwest monsoon; Similarly, the land heats up quickly in summer, and the high temperature forms a low pressure, which prevails in the southeast monsoon.

South Asia and Southeast Asia: Reason: The wind belt in the pressure belt moves seasonally.

In summer, the southeast wind in the southern hemisphere moves northward across the equator and is influenced by geostrophic force to form a southwest monsoon; In winter, due to the thermal difference between land and sea, the land cools quickly and the temperature is low, resulting in high pressure and prevailing northeast monsoon.