When you watch the weather forecast and see that the satellite cloud image around Fujian is green, what is the weather condition in the area at this time?

Look at satellite cloud images: Meteorological satellite cloud images are displayed on the prime time weather forecast program of the TV station every night. How to view satellite cloud images?

In the black and white satellite cloud image (black and white TV), white appears in two clouds. After being processed and analyzed by an electronic computer, the color satellite cloud image is divided into three colors: white, green and blue. The image is intuitive and vivid, and the viewing effect is good. White indicates clouds and rain; thick white indicates thick clouds and high cloud tops, and there will be heavy rain, hail or typhoons; dark black indicates cloudless and clear sky areas. There is a small and clear black dot in the spiral cloud, which is called the eye of the typhoon. When the spiral cloud system is distributed in a "6" shape, the typhoon will move northward; when it is distributed in a "9" shape, the typhoon will move westward under the control of the upper air flow.

When you see the following cloud systems passing by, you should be alert to the possibility of hail, thunderstorms, hurricanes or tornadoes. For example, where the infrared cloud image is very white and bright, the visible light cloud image passes through the convective cloud body (forming a clear dark shadow on the backlit side of the cloud), and the front part of the cloud group with a range of several hundred kilometers is arc-shaped or egg-shaped, appearing as a head. A carrot with a thick tail and a cloud shape, etc.

In the cloud image, green represents the land surface, blue represents the ocean, and the depth of the color represents the surface temperature.

Nebula contains almost all extended celestial bodies except planets and comets. The original meaning of the English root word Nebula is "cloud". We sometimes refer to galaxies, various star clusters, and various types of dust and gas in the universe as nebulae.