China Naming Network - Eight-character query< - Can you judge the weather in a certain place according to the satellite cloud picture? How to judge?
Can you judge the weather in a certain place according to the satellite cloud picture? How to judge?
The surface of the earth is a clear sky area, and the infrared radiation information from the ground to space is observed by satellites, which is black and gray; The darker the black, the stronger the ground radiation and the better the weather. When there is cloud and rain covering over a certain place, what the satellite observes is the infrared radiation from the cloud top to space, which is white or grayish white; The whiter the color, the weaker the radiation, the lower the temperature, the thicker and denser the cloud system, and the greater the rainfall intensity. The transition area between clear sky area and cloudy and rainy area is dark gray, gray and light gray cloud system, which indicates that there are clouds with different thicknesses without obvious precipitation. People often see cloud systems with different shapes from satellite cloud photos broadcast every day. Meteorologists call them cloud systems, which are actually the manifestations of various weather systems in cloud photos. For example, people can see at a glance that the typhoon in summer is a huge cloud with spiral rotation. Some people call it the atmospheric "flying butterfly". It rotates counterclockwise with a strong wind speed of tens of meters per second, and at the same time, it attacks China's coastal areas at a speed of tens of kilometers per hour. Because of the satellite cloud image, it was discovered at the beginning of its generation, so the level of modern typhoon forecasting has been significantly improved. In the past, there was no meteorological record on the ocean surface, and the meteorological radar set up along the coast could not detect it. When the typhoon approached the coast, its strength, size, speed and direction were completely unknown to even meteorologists, so what about accurate forecasting?
another major cloud image system in summer is a large black-gray cloudless area in the northwest Pacific Ocean, which is the protagonist of summer weather-the Western Pacific High. It is often very irregular oblate, lying across the east of Taiwan Province Province to the central and eastern mainland of China. The deeper and wider the black color is, the more intense it is, the higher the temperature is, and the longer the stable control time is. People call it a "black hole" figuratively. In summer, the high-temperature heat waves in the middle and lower reaches of the Yangtze River are mostly "pranks" created by it.