November weather in Nanjing

The atmosphere can make the short-wave radiation of the sun reach the ground, but a large number of long-wave radiation rays emitted by the ground are absorbed by the atmosphere after being heated, which raises the temperature of the ground and the lower atmosphere. Because its function is similar to the greenhouse for cultivating crops, it is named the greenhouse effect. Under the effect of this greenhouse effect, the weather on the earth often appears some abnormal situations. For example, the temperature in Nanjing in 2020 1 1 month broke the record of 1 1. Nanjing's monthly temperature in 2020 1 1 broke the record of 165438+ 10, because of the greenhouse effect, it is getting hotter and hotter in winter. If the environment is still not protected, the temperature in winter will be extremely cold and hot.

1. Due to environmental pollution, the earth is getting warmer and warmer in winter. Since the industrial revolution, carbon dioxide and other heat-absorbing greenhouse gases released into the atmosphere by human beings have increased year by year, and the greenhouse effect of the atmosphere has also increased, especially on the day of collective heating in winter, the air pollution degree is much higher than that in the other three seasons. So winter is slowly changing to warm winter, and the spring and autumn are getting shorter and shorter.

Second, because the hot and humid air in the south moves to the northeast, it brings the temperature. In 2020, when winter comes, the warm and humid airflow near the equator begins to move northward, and then meets the southwest airflow. This warm and humid air flow will speed up the movement to the north and start to change direction and move to the northeast. This warm and humid air has just passed through the downtown area of Nanjing, bringing a relatively high temperature.

Third, the hot and humid air in the Qinling Mountains and the south blocked the weak cold air in the south. Warm and humid air from the equator enters the north after passing through the south of the Yangtze River. The weak cold air in the north of China has begun to move southward. After the collision of the two air currents, heavy snowfall began to appear in Northeast China, and then these two air currents began to affect North China, and heavy snowfall began to appear in Shaanxi and other places. However, due to the existence of the Qinling Mountains, the speed of this cold air going south has slowed down, and Nanjing can be warmer for a few more days.