Saury boat

On the evening of May 7, 2022, the sky in Zhoushan, Zhejiang Province was bright red, indicating that a large number of fine particles were gathered in the clouds near Zhoushan last night, of which particles with a diameter of about 0.7 micron accounted for the vast majority, and their diameters were similar to the red wavelength of the sun, and the sky was red after scattering.

This phenomenon is also called Rayleigh scattering. Zhoushan said that there was a fishing boat near the harbor at that time, and the red light happened to be on board, which aggravated the Rayleigh scattering effect. Usually the moon is dark red and bloody during a total lunar eclipse, which is also the same principle.

Reasons for the appearance of saury boat

Some people say, forget it, this is saury boat coming to Fuzhou to fish. The lure lights of fishing boats at sea are formed by atmospheric diffusion! Sandstorms can also form similar natural phenomena in the sun, so there is no need to make a fuss. It rained for several days, and the light of different colors scattered in the atmosphere to different degrees.

Let's make a bold guess. In rainy weather, some water vapor reacts with some substances in the air to form red unknown substances. This phenomenon is also prone to occur in summer in Guangdong, which is a coincidence that sunshine, clouds and water vapor happen at a certain time. Generally, there are more before typhoons, which is nothing strange.