[Explanation] On November 18, a circular rotating ice tray with a diameter of about 6 meters appeared on the western outskirts of Haolibao in Genhe City, "China's cold extreme", attracting a large number of photographers to come and shoot.
[Explanation] The reporter learned that the formation of ice trays is affected by real-time temperature, and they gradually disappear after only a few hours that day.
On November 20th, the ice tray formed again in the original place and the area was larger than before. However, due to the sudden drop in temperature at night, the ice tray was connected to the ice on the shore and could not be rotated.
[Concurrent] Shao Fuchen, a photographer in Genhe City
It is very beautiful, its diameter is probably more than 10 meters.
I think that since the beginning of winter, the scenery we have seen with our eyes is excellent, but as for a unique scenery like this, I dare not say that many people have not seen it, that is, I was born and raised in a forest area. I have only seen it twice, but this is the first time I saw such a large ice tray.
[Explanation] According to experts, this peculiar natural phenomenon usually only occurs in areas where there are very cold and non-freezing rivers. Slowly flowing river water can form slowly rotating vortices. At the bends of the river, turbulent water flows here. A force called "rotating shear" is generated, which separates some ice from the surrounding ice layer and rotates with the water flow.
When the ice tray rotates, it will gradually form a perfect circle due to the continuous grinding of ice in the ice circle.
Also known as the ice tray.
[Concurrent] Ji Chengcheng, Assistant Engineer, Genhe Meteorological Bureau
Then (November 17) to (November 19), (Genhe City) was affected by the inverted trough on the ground and ushered in a snowfall and temperature reduction process, and the temperature dropped by more than 10 degrees Celsius.
The daily minimum temperature (November 18) also reached (minus) 20.7 degrees Celsius, creating a good weather condition for the production of ice discs.
Li Aiping, Chen Feng, Jiming, reported from Genhe, Inner Mongolia
Editor in charge: 【Qi Bin】