We all have different feelings about the coming of winter.
For those who can't stand the cold, winter is a kind of torture.
However, for those who can endure the cold and love it, winter is a gift from nature.
In addition to the pure beauty of the snow-covered winter, there is also a breathtaking scenery - rime.
Rime, commonly known as ice flower, is a milky white ice crystal deposit in which water vapor in the air condenses directly or super-cooled fog droplets freeze directly on objects at low temperatures.
When the sky is clear, some snow melts, plus the cold air invades at night and the temperature difference between morning and evening is large, a foggy landscape is formed.
The conditions for the formation of rime are very demanding.
The formation of rime requires a long, cold winter and sufficient water vapor in the air.
The formation of rime requires both clear skies with few clouds and still winds, or very little wind speed.
The clouds in the sky are like a quilt for the earth, and when there are clouds at night, it weakens the outward long-wave radiation, so that the ground temperature decreases more slowly.
The temperature difference between day and night is relatively small, and the water vapor in the air near the ground will not condense.
If the quilt is lifted, more heat is dissipated, making the ground temperature lower and providing the necessary conditions for the condensation of water vapor.
High winds are the natural enemy of the rime formation process.
It always blows away the ice crystals that are loosely structured during the formation process.
Even clusters of rime can be blown away without a trace.
Breeze or static wind conditions provide a guarantee for water vapor condensation and condensation into rime.
Generally in winter, the probability of sunny days and still or breezy weather appearing at the same time is not very high.
In addition, when there is over-cooling fog, it is especially favorable for ice crystals to grow on ground objects.
At this time, white ice flowers are formed on power lines and tree branches, which is called "fog.
When there is fog and the temperature is above 0°C, droplets of fog adhere to and converge on leaves or other objects, which is called "fog condensation" and is most common in forests.
Rime is a natural cleaner of air.
When people watch rime, they will feel the air is extraordinarily fresh and comfortable.
This is because rime has the inherent function of purifying the air.
There are a large number of particles in the air that are invisible to the eye, most of which are below 2.5 microns in diameter, about one-fortieth of the diameter of a human hair, very small in size, and extremely light in weight, suspended in the air and hazardous to human health.
The fog is not only white and flawless in appearance, giving people a pure and elegant appearance, but also a natural large area of air "cleaners".
If you want to see the most beautiful rime, you can go to Jilin, China.
The rime there is known as one of the four natural wonders of China.
Rime is a natural cleaner of air. When people watch rime, they will feel the air is extraordinarily fresh and comfortable. This is because rime has the inherent function of purifying the air.
There are a large number of particles in the air that are invisible to the eye, most of which are below 2.5 microns in diameter, about one-fortieth of the diameter of a human hair, very small in size, and extremely light in weight, suspended in the air and hazardous to human health.
The fog is not only white and flawless in appearance, giving people a pure and elegant appearance, but also a natural large area of air "cleaners".
If you want to see the most beautiful rime, you can go to Jilin, China. The rime there is known as one of the four natural wonders of China.
