Mars with the same "blue sun" appeared over Beijing! Do you know the reason behind the "blue sun"?

A blue sun appeared over Beijing. According to the analysis of meteorologists of Weather Network, this is because the particles in the dust scatter and absorb the red light with longer wavelength, which leads to the reduction of red light, so the sun looks blue.

Sandstorm has a certain impact on our travel and many activities, which makes us deeply uneasy, but we feel helpless. However, the appearance of sandstorms has also led to the appearance of strange landscapes. Someone found it in Beijing? Blue sun? .

The sandstorm turned the sun into. Blue sun?

Spring has arrived, and sandstorms have begun to attack many areas again. Of course, it also includes Beijing. Someone took it in Beijing? Blue sun? And then what? Beijing blue sun? This topic, quickly boarded the Weibo hot search. Some netizens joked that it was 1 day to land on Mars. For this strange scene, the chief meteorologist of China Weather and Meteorological Network said: Because the atmosphere of Mars is thin, it absorbs light with longer wavelength, leaving blue light with shorter wavelength, while the tiny particles left by Mars have strong blue light scattering ability, and their scattering intensity is close to 10 times that of red light, so it has? Mars with the same blue sun? Statement.

The influence of sandstorm on people.

The arrival of sandstorm must have brought some influence to people's travel. Before the sandstorm came, the meteorological department made a forecast in advance. Beijing has upgraded and issued a yellow warning signal for sandstorms. Our city is in the yellow warning of windy blue sand city, and the visibility is less than 1 km. It is said that this is the most influential sandstorm weather in 10 years. Some elderly people, children and patients with respiratory allergic diseases should try not to go out for outdoor activities unless there are special circumstances. When necessary, you must wear masks and dust-proof articles. When outdoors, be sure to stay away from trees and billboards to prevent falling or scratching and injury. Try not to ride a bike and wear dust-proof clothes to protect your eyes and nose.

Shelterbelts can't stop strong sandstorms.

Shelterbelt plays a positive role in preventing wind and fixing sand. Because through afforestation, tree roots can fix sand and reduce sandstorms. However, due to the limited impact of shelter forest on the whole wind field, its impact on strong sandstorm weather is very low and can be basically ignored. Therefore, on a large scale, shelterbelts have little impact on the wind field. It will only affect a small part of the area near the ground. Although the sandstorm has brought all kinds of adverse effects to our lives, this time it unexpectedly brought us a strange landscape, which made everyone feel the magic of nature.