What is the distribution law of world temperature?

Latitude zonality is the basic law of climate distribution in the world.

It is caused by zonal factors, that is, the thermal difference caused by the uneven distribution of solar light and heat on the earth's surface, and the resulting global pressure belt, wind belt and its seasonal movement, leading to the general trend of climate types changing according to latitude.

The earth's surface is divided into five basic climatic zones, which are divided according to the amount of solar light and heat, and are bounded by the tropic of cancer and the polar circle, commonly known as latitude zones.

In addition, taking the isotherm of the hottest monthly average temperature 10℃ and the isotherm of the hottest Leng Yue average temperature 18℃ as boundaries, three zones are divided into cold zone, warm zone and hot zone. This climate zone is called the temperature zone. Basically, it is also divided by latitude and extends along the latitude direction.

Main climate types in China:

1, subtropical monsoon.

China, South China and East China all belong to this climate type. The annual accumulated temperature is between 4500-8000℃, and the average temperature in Leng Yue is 0- 15℃, which is a transitional zone between subtropical zone and temperate zone, and the summer temperature is quite high (average temperature >; =25℃ for at least 6 days, that is, 30 days), and the temperature is quite low in winter.

2. Temperate monsoon.

North China belongs to this climate type. The annual accumulated temperature is between 3000 and 4500℃. The average temperature in Leng Yue is between-28 and-0℃, and the average temperature in summer is still above 22℃. The temperature over 25℃ is relatively rare and relatively warm and cool. In recent years, due to climate warming and other reasons, high temperature weather frequently occurs in southern North China, but the average temperature still does not exceed 25℃.

Refer to the above content: Baidu Encyclopedia-Climate Types