February** Dynamic Incentive Program
Have you ever seen such a spectacular sight? It is as if the whole world is wrapped in a layer of "rock sugar" all of a sudden, crystal clear, and very beautiful!
This bizarre natural spectacle is known as "freezing rain". But, what is freezing rain and how is it formed, do you know?
Freezing rain is a special type of precipitation that usually occurs in early winter or late winter and early spring, and is a disastrous weather phenomenon. The process of its formation involves the interaction of cold air and warm moist air.
Specifically, the formation process of freezing rain mainly includes the following steps:
1.Invasion of cold air: When stronger cold air moves south, it inserts like a wedge underneath the warm air, causing the temperature near the surface to drop rapidly below 0.
2.Rise of warm and moist air: Under the action of cold air, the originally warm and humid air with high temperature is forced to rise, and with the increase of altitude, the air temperature gradually decreases, and the water vapor in the air condenses to form cloud droplets.
3.Precipitation formation: As warm, moist air rises and cools, cloud droplets further condense into long droplets, eventually forming rainfall.
4.Supercooling raindrops: In special cases, the water droplets of rain remain supercooled in the air with a temperature slightly below 0, i.e. the water droplets do not freeze although the temperature is below freezing.
5.Rapid freezing of raindrops: When these supercooled raindrops fall on the ground or other objects (such as power lines, tree branches, etc.), because the temperature of these objects is lower than 0, the raindrops immediately freeze quickly on the contact surface, forming a smooth and transparent ice layer, which is the so-called "rime" or "ice cube".
When freezing rain falls, it freezes the ground, which makes it difficult to walk and has a serious impact on infrastructure such as transportation, communications, and power supply. Freezing rain is a relatively rare weather phenomenon, and people need to take corresponding precautions to reduce the damage caused by freezing rain.