Hulunbeier, Inner Mongolia, is now a spectacle of lunar halo. What is the reason for this spectacle?
On the evening of January 26th, boketu Town, Hulunbeier City, Inner Mongolia Autonomous Region, appeared a spectacle of lunar halo, and the sky was beautiful as far as the eye could see.
halo is an optical phenomenon in nature. When that light of the sun or the moon passe through the high and thin white clouds (cirrus, cirrostratus and cirrocumulus) in a day, it is refracte by the ice crystals in the high-altitude clouds to form a color aperture. Because the principle of its generation is similar to that of a rainbow, the color arrangement has a certain arrangement order, which is internal infrared purple. When a halo appears around the sun, it is called a solar halo; The aperture that appears around the moon is called lunar halo.
what else? Little dizzy? With? Big halo? Points,? Little dizzy? For 22? Dizzy? Big halo? For 46? Dizzy Small halo is a kind of inner ring with a luminous body as the center and an angular radius of 22 degrees, and the outer ring occasionally presents a purple or white halo, while the sky in the halo is obviously darker than that outside the halo. The big halo is the angular radius of 46? Halo rings, by contrast, large halos are very rare, and their apertures are generally darker than small halos.
The lunar halo was also called the hairy moon in ancient times, and it was also called the aperture in some places. Halo is usually ring-shaped or arc-shaped, with seven colors: red, orange, yellow, green, blue, indigo and purple. Before the weather changes, we sometimes see one or even more colored or white apertures around the moon, and the sunlight or moon light will be much dimmer.
The appearance of solar or lunar halos often indicates that the weather will change. There are proverbs among the people? It's raining in the middle of the night, and it's windy at noon. . When the solar halo appears, it indicates that it is more likely to rain, and when the lunar halo appears, it indicates that it will be windy. The lunar halo sometimes has a gap, and the direction of the gap is the windy direction.
cirrostratus itself, it will not produce precipitation, but it may rain in the middle and low clouds with a lot of water, so people will say? It's raining in the middle of the night, and it's windy at noon. . Halo is closely related to wind and rain, so is it necessary to have wind and rain if there is halo? This may not be certain, but also depends on how cirrostratus and the Lower Middle Cloud develop next. If they continue to develop, the water content in the high altitude will increase, the amount of clouds will increase, and the clouds will gradually thicken, so it will be windy and rainy. Whether it is dizzy for several days in a row or a flash in the pan, we should look at the development speed of low and medium clouds after dizziness. The development of middle and low clouds moves in quickly, and the precipitation will come quickly; If the development moves slowly, the precipitation will come late; And if we don't move in, there will be no precipitation.