What is the satellite cloud image that appears in CCTV weather forecast?

It is the cloud image animation transmitted from the Fengyun meteorological satellite. It can be directly drawn by meteorological software such as Micaps. It belongs to the synchronous meteorological satellite (should be Fengyun 2). It operates at an altitude of about 35,800 kilometers, and its orbital plane coincides with the Earth's equatorial plane. As seen from the Earth, the satellite is stationary above a certain longitude at the equator. Basically, there is one piece of information every half hour. With double-star information, you can basically guarantee one piece every 15 minutes.

The most commonly used satellite cloud images (in meteorological services) are water vapor cloud images and infrared cloud images; they are used to test the water vapor content in the cloud and the height of the cloud top respectively. Generally, the brighter the two, the stronger, that is, the brighter they are. The greater the possibility of relatively heavy precipitation in an area and the more severe the weather. It is usually said that there is the influence of cold air (the intersection of cold and warm air can cause the formation and development of clouds). Without clouds, it will naturally be sunny.