The sky in Runan, Henan Province is "distinct", half blue and half white. Why is there such a beautiful scenery?

Recently, strange natural landscapes have appeared in many places in China. In Zhoushan, China, a large area of blood red appeared in the sky because of light scattering. Recently, a strange scene appeared in the sky in Runan, China. Many citizens are attracted by this scene. At first glance, the whole sky is divided into two parts, one is the clear sky, the other is the cloud behind it, and the two sides are distinct. In fact, this strange phenomenon, such as Runan in Henan, was also seen in Beijing in May this year. In ancient times, some people thought it was an ominous sign that something bad might happen, but in fact, it has disappeared in today's society. In ancient times, this statement was true.

In the sky in Runan, Henan, we saw a cloud wall. He divided the blue sky and white clouds in the sky into two parts, one is the clear blue sky, the other is the clouds behind, and the two sides are completely different. This phenomenon is called yin and yang days. In meteorology, his name is transparent high-altitude accumulation. Due to light transmission, layers of cumulus clouds are produced, mainly cold and warm air, which is caused by the intersection of groups, and the blue sky side is relatively warm. The main reason for this phenomenon is the change of cold and warm airflow, which is projected into the sky and becomes a beautiful landscape.

The wonders of nature are amazing, and every scenery can be described as a fairyland on earth. ? Yin and yang days? It is a rare but not surprising weather phenomenon, which is caused by the existence of airflow in different directions and different water vapor content in the middle and high altitude, that is, meteorological wind shear. From where? Yin and yang days? The main reason is that the cold and warm air masses meet in the upper atmosphere. Under the interaction, the squeezing pressure will lead to a neat dividing line between the blue sky and white clouds, which looks completely different. Generally speaking, when some rare natural phenomena appear, they are often the result of the interaction between cold and warm air in the upper atmosphere, or the scattering and refraction of solar light.