Rime, commonly known as tree hanging, is the direct condensation of water vapor in the air at low temperature, or the direct freezing of supercooled fog droplets on the object of milky white ice crystal sediments, which is a very rare natural wonder.
The rime is not ice or snow, but the result of freezing and sticking of water vapor which has not yet condensed under zero degrees Celsius in the fog on the branches and other objects with the wind, showing as white opaque granular sediments. The formation of fog requires very low temperature and sufficient water vapor, and it is rare to have these two extremely important and contradictory natural conditions for the formation of rime.
The best rime to watch must go to Jilin. Jilin's rime and Guilin's landscape, Yunnan Stone Forest and the Three Gorges of the Yangtze River are called China's four natural wonders. Rime is commonly known as "tree hanging". It is neither snow nor ice, or rime and water vapor encounter frost condensed on branches and leaves by cold air. They are divided into granular and crystalline forms. They need to have sufficient low temperature and sufficient water vapor, which are two extremely harsh and contradictory natural conditions. There is the saying of "appreciating the rime, going to Zengtong". "Looking at the rime at night" begins at 10 o'clock the night before the formation of the rime . The mist on the river appears as thin as gauze. With the passage of time, the temperature on the river is getting lower and lower, and the rime is getting bigger and bigger. Finally, a full mist like giant marshmallow is formed, rolling over the river, and the momentum is shocking.
Best viewing time of Jilin rime: from mid-late December to the end of February next year, it is the best time to go. Usually, it falls to heavy snow and the temperature is below 20 degrees below zero, so the possibility of rime is very high. The best place to watch Jilin rime is Rime Island on Songhua River in Longtan District of Jilin City, Jilin Province, Baishan Lake in Baishan City, Jilin Province, and Beidahu Skiing Ground in Jilin Sports Tourism Economic Development Zone.