In which season did the scene of "rime" appear? What is the principle of formation?

rime? Landscape usually appears in winter. Rime? It is a rare natural wonder that water vapor in the air condenses directly at low temperature, or that supercooled droplets freeze directly on objects. ?

Let's learn more about the rime:

1. Causes

The rime is a kind of white or milky opaque ice layer attached to the windward surface of ground objects (such as branches and wires). It is also formed by condensation of supercooled water droplets. When supercooled water droplets (temperature below zero) collide with objects that are also below freezing temperature, rime will be formed. When the water vapor in the air touches an object and immediately condenses into a solid state, it will form a rime layer or rime deposit.

the harsh conditions for the formation of rime are, first of all, the long and cold winter and sufficient water vapor in the air. Secondly, the formation of rime requires both sunny partly cloudy and calm wind, or the wind speed is very small.

2. Shape characteristics

There are two main shapes. One is that supercooled droplets quickly freeze into small granular ice cubes after hitting cold ground objects, which is called granular rime (or hard rime), and its structure is relatively compact. The other is a crystalline rime (or soft rime) formed by the condensation of water vapor generated when droplets evaporate, which has a loose structure and will fall off with a slight vibration. ?

3. Main classification

Hard glaze: Hard glaze and water glaze, frost and dew are all formed due to the temperature difference between air and ground objects. However, the temperature difference between hard glaze and water glaze is caused by the warming weather, while the temperature difference between frost and dew is caused by the radiation cooling of ground objects. ?

soft glaze: soft glaze is a kind of white deposit, and water droplets condense on the outer surface frozen by semi-frozen fog or mist, and are formed under the condition of no wind or breeze. Soft rime is usually found on the windward side of frozen branches, wires, or other solid objects. ?

summary:? Rime? Non-ice and non-snow are white particles hanging on trees after water vapor condenses, which mainly appear in winter, and it may only appear in a long and cold winter. ?