What is the fog like?

Fog is a white appearance, a weather phenomenon consisting of tiny water droplets or ice crystals suspended in the air near the ground, and a product of water vapor condensation (or condensation) in the air near the ground. ?

When the relative humidity reaches 100%, the water vapor in the air will condense into fine water droplets suspended in the air, which will reduce the visibility on the ground. This weather phenomenon is called fog.

Formation condition

The conditions of fog formation are cooling, humidification and condensation to increase water vapor content.

A kind of fog is formed by radiation cooling, which mostly appears at night and early morning, when the weather is clear, the breeze is light, the water vapor near the ground is rich and stable, or there is inversion. Meteorology is called radiation fog;

The other is that warm and humid air moves horizontally, passing through the cold ground or water surface, and the water vapor in the air is gradually liquefied by cold to form fog, which is called advection fog in meteorology;

Sometimes the fog formed by two reasons is called mixed fog. It can be seen that it is late autumn and early winter that can meet these conditions, especially in the morning of late autumn and early winter.