Why does it often rain in the south?

Climatic reasons: the south is located in the eastern tropical monsoon region, with a low altitude, which is significantly affected by the ocean monsoon in summer, hot and rainy, and the north belongs to the temperate humid and semi-humid region.

The southern region is in the monsoon region, where cold current and warm current climate often meet. The air mass from the Pacific Ocean contains a lot of water, and it rains when it meets the cold air mass, because it rains more than other places. In addition, it is close to the ocean, and there is more water vapor transpiration, while the vast southern region is mostly in the third step of our country.

The lowest place is on the windward slope, and the wet and warm air is blocked by the higher terrain. There are also problems of cold current and warm current. Usually the place where the cold current flows is cooled and humidified, and the place where the warm current flows is heated and humidified.

There is a warm current flowing along the southern coast, which also brings rainfall to the coastal areas, El Nino phenomenon caused by abnormal climate and the opposite Kanna Reminisce phenomenon.

Extended data:

The problem of the southern monsoon climate zone, the subtropical monsoon climate zone, happens to be rainy at this time, which is also called the rainy season.

Topographic reasons: hills, plains, mountains, plateaus and other topography will affect climate convection and so on; There are inland or coastal areas, for example, because of being near the sea, the transpiration is great, the movement of rain is more complicated, and there is a lot of water in the clouds, so it naturally rains much more.

Vegetation causes vegetation cover, land desertification, etc. Coupled with the influence of climate, transpiration of vegetation is also one of the ways of water vapor transportation, that is, transpiration has a great influence on cumulonimbus clouds.

The causes of cyclones and anticyclones are actually monsoon, typhoon, front and front. It also affects precipitation in different regions. The inverse law of human factors, environmental pollution and other factors.

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