Climate difference between north and south

The climate difference between north and south refers to the climate difference between north and south in China. The climatic conditions in the north and south of China are quite different from the natural environment, mainly in temperature, precipitation, humidity and so on.

First of all, from the temperature point of view, the southern region is hot and rainy in summer and mild and rainy in winter; The northern region has four distinct seasons, with cold and dry winters and hot and rainy summers. The average summer temperature in southern China is around 25℃, while in northern China it is above 25℃. In addition, the winter temperature in the south is relatively low, generally above 0℃, while the winter temperature in the north is relatively low, generally below-10℃.

Secondly, in terms of precipitation, the annual precipitation in southern China is relatively large, generally above 1000 mm; The annual rainfall in the northern region is relatively small, generally below 500 mm, and the summer rainfall in the southern region is relatively large, generally above 200 mm; The summer rainfall in the northern region is small, generally below 50 mm, and the winter rainfall in the south is large, generally above 50 mm; The winter rainfall in northern China is relatively small, generally below 10 mm.

Finally, in terms of humidity, the humidity in the southern region is relatively high, generally above 80%; The humidity in the northern region is relatively small, generally below 60%. The summer humidity in southern China is relatively high, generally above 90%. The summer humidity in northern China is relatively low, generally above 70%. In addition, the humidity in winter in the south is relatively high, generally above 80%; The winter humidity in the northern region is relatively small, generally above 60%.

Causes of climate difference between north and south

The main reasons for the climate difference between north and south are geographical location, atmospheric circulation, land and sea distribution, topography, ocean currents and other factors.

First of all, geographical location is one of the main reasons for the climate difference between north and south. China has a large latitude from north to south, and the northern region is close to the ocean, which is greatly influenced by the ocean, and the climate has maritime characteristics; However, the southern region is far from the ocean and is less affected by the ocean, and the climate has continental characteristics.

In addition, the northern region is affected by warm and humid air from the ocean in summer and cold air from the north in winter, which makes the climate in the northern region have obvious seasonal changes. However, there is no obvious monsoon climate in the south, with high temperature and rainy summer and mild and little rain in winter.

Secondly, atmospheric circulation is also an important factor causing the climate difference between north and south. The northern region is affected by warm and humid air from the ocean in summer and cold air from the north in winter, which makes the climate in the northern region have obvious seasonal changes. However, there is no obvious monsoon climate in the south, with high temperature and rainy summer and mild and little rain in winter.

The distribution of land and sea is also an important factor causing the climate difference between north and south. The northern region is located in the mainland, with obvious land and sea alternation and continental climate. The southern region is located in the east and southeast coast of the mainland, with weak land and sea alternation and maritime climate. Terrain is also an important factor causing the climate difference between north and south. The northern region has high terrain, complex terrain and continental climate. However, in the south, the terrain is relatively low and flat, and the climate is maritime.

Finally, ocean current is also an important factor that causes the climate difference between north and south. Affected by monsoon currents and polar cold currents, the climate in northern China has obvious seasonal changes. Affected by the Pacific Ocean and Indian Ocean warm currents, the southern region is hot and rainy in summer and mild and rainy in winter.