Northland scenery! There are rime wonders in Inner Mongolia. What conditions need to be met to form rime?

Rime is a very spectacular natural landscape, which is formed by condensation of water vapor in the air in cold winter, or by fog droplets in the air meeting ice crystal deposits frozen on objects with extremely low temperature. Rime is neither ice nor snow. It is the result of the frozen adhesion of water vapor in the high humidity air with the temperature below zero degrees Celsius. Opaque granular deposits with milky white or white appearance require harsh natural conditions: sufficient water vapor and low temperature.

Formation principle of rime: Water droplets at low temperature (below zero degrees Celsius) will condense into white or milky opaque ice crystal layers when they contact objects at the same low temperature. Therefore, the water vapor in the cold air in winter will condense into white ice crystal deposits when it meets objects with low temperature, which is the rime layer or rime deposits.

Conditions for the formation of rime The formation of rime requires long and cold winter, high enough air humidity and enough water vapor in the air. Finally, the weather in which the rime is formed requires low wind, clear and cloudy, and low wind, and requires water droplets to stay on ground objects for a period of time, because it takes a certain time for water vapor to condense. If the wind is strong, it is easy to put a thin layer of fog that has just formed. Clear weather is needed because if there are a lot of clouds in the sky at night, it will weaken the radiation of long waves and slow down the ground temperature, thus reducing the temperature difference between day and night, and the water vapor in the ground air will not form rime at night. If there are few clouds, the heat on the ground will be lost, and the temperature will be reduced, so that water vapor will condense more easily, thus forming rime.

In fact, the probability of these rime formation conditions happening at the same time is relatively low, because the probability of sunny days and breezes happening at the same time is very small, and the probability of sufficient water vapor in the air and low temperature happening at the same time is also very small.