The weather in Nanjing in November
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.