Why is there smog in Chengdu in winter?

It's winter. Although the temperature has risen in many places since the winter, there have been haze weather in some areas, and Chengdu is one of them. It is precisely because of this that why there is smog in winter in Chengdu has become more curious. Let's take a look together.

Why is there smog in Chengdu in winter?

Recently, the smog weather in Chengdu is relatively mild, which is related to the terrain of Chengdu. Chengdu belongs to the western Sichuan plain, while Chengdu is at the basin bottom of the plain with low terrain. In winter, the air is humid and the air flow in the basin is slow. In addition, Chengdu has less sunshine time in winter, the air humidity is higher than usual, and the airflow is close to a static state, so it often causes haze weather. There are many reasons for winter smog in Chengdu, which are caused by several factors, not a single factor.

How long will the foggy weather last in Chengdu?

If the smog weather in Chengdu wants to end, it will take at least two or three months until spring blossoms. It's cold now, Chengdu is full of water vapor, and it's normal to have heavy fog. At the same time, foggy days appear more frequently in winter. This is because the winter nights are long, there are more opportunities for sunny days and small winds, the ground heat dissipation is faster, and the temperature drop is more significant. When the temperature drops to the lowest in the morning, the water vapor in the air is easy to reach saturation and condense into small water droplets, which accumulate more and more and form fog.

Is the foggy weather serious in Chengdu in winter?

The foggy weather in Chengdu in winter is still serious. Chengdu is located in a basin with many mountains and rivers nearby. The humidity is very high all year round, and there is fog almost every winter morning. When the fog is heavy in the mountains, the visibility is only a few meters, and it will slowly disperse with the increase of temperature at noon. This is a normal meteorological phenomenon, not all smog. And because Chengdu (almost the whole Sichuan basin) is cloudy in winter, the sun rarely shines, and the fog dissipates slowly, which is more likely to cause your illusion.