101On the evening of October 28th, the sky in Urumqi turned green. What is this phenomenon?

On the night of October 28th, 65438+ year/kloc-0, the sky in Urumqi turned green because seven kinds of visible light in the sun would be refracted and reflected when they met small water droplets or small ice crystals in the clouds. After refraction and reflection, some visible light will be mapped into the sky and different colors will appear in the sky. According to the weather forecast, it will be sleet on the 28th in Urumqi, so it is not surprising that there will be a blue sky. In fact, Urumqi is sunny during the day and suddenly turns into sleet at night, which will form strong convective weather and then appear blue sky.