Traditional Culture Encyclopedia - Weather inquiry - What is the phenomenon of cold night lamp posts in Harbin?
What is the phenomenon of cold night lamp posts in Harbin?
On November 24th, a mysterious light column appeared in the night sky in Harbin, Heilongjiang. Bundles of lampposts go straight to the sky, dreamlike, gorgeous and colorful like fairyland, which has attracted the attention of the general public. In fact, this phenomenon is not the first time. In 219, there was a beautiful and colorful cold night lamppost phenomenon in Xinjiang Altay Mucun. It appeared over Siberia in 22.
cold night lamp post
According to the picture, the basic conditions of the light beams appearing in Harbin and Siberia are the same, both of which appear at night, and both of which are under the condition of very low temperature in winter. Cold night lamp posts usually appear in high latitudes and some plateau areas with high altitude. In the northeast of China, Inner Mongolia, Xinjiang and the Qinghai-Tibet Plateau in the southwest, cold night lamp posts will also appear.
Scientists explain that this phenomenon is a cold night lamppost phenomenon and a natural phenomenon. Only in the cold winter nights near the polar regions or plateaus can there be enough conditions to form lampposts. The appearance of the phenomenon is related to the weather temperature at that time. Usually, the temperature is MINUS ten degrees, the air humidity is high, and there are a lot of ice crystals in the air. At night, street lamps, neon lights, car lights and so on in the city are reflected by the ice crystals, forming lamp posts that everyone can see. Because ice crystals flow in the same direction under the influence of atmospheric circulation, these ice crystals capture the light nearby and refract the captured light like tens of thousands of mirrors, so everyone sees the spectacular phenomenon in front of them. It looks a little similar to the polar aurora, but the aurora will move, but the lamp post on a cold night will not.
Cold weather is one of the important conditions for the formation of cold night lampposts. The colder the weather, the stronger the icicles reflect. It is no accident that the lamppost phenomenon appeared in the night sky in Harbin this time. Since mid-year, the night temperature in Harbin has been around 15 degrees Celsius. It has been raining and there is no wind. The temperature of MINUS ten degrees makes the water vapor in the air crystallize into ice crystals. The night lights in Harbin are gorgeous, and all the conditions contribute to the rare and wonderful cold night lamp post phenomenon on the night of November 24. Because the air humidity is relatively high when the lamppost appears on a cold night, countless small ice crystals are formed, and the temperature is also very low. Most of them have reached about 1 degrees below zero, which has already met the conditions for snow. Some people say that the appearance of lamppost on a cold night indicates that it will snow heavily.
In addition to the cold night lamp post phenomenon, there has been a "warm night lamp post" phenomenon in Hainan, Guangdong and Fujian, where the latitude is low and the temperature is high, and the warm night lamp post will only appear in the upper cold atmosphere.
whether it is a cold night lamp post or a warm night lamp post, it is a natural phenomenon. Although mysterious, it is not science fiction. Everyone should believe in science instead of the so-called nonsense that aliens visit the earth.
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