What development has radio experienced in weather observation?

The radio came out in the 1920s. It was not until the advent of radiosondes that stations with weather balloons changed people's views on the upper atmosphere. The most typical example is that radiosonde measures air pressure through a small barometer, and measures the influence of temperature and humidity on electrical conductivity. With the rise of radiosonde, it sends back reports by radio, and measures wind speed and direction according to the changes of radiosonde in a certain area. About an hour later, a special radiosonde rose 15 miles (24 kilometers). The balloon inflated and finally exploded. The instrument package has completed its task and landed on the ground with a micro parachute.

In the 1940s, radiosondes spread information to the whole world every day. Meteorologists will soon study high-altitude jets and other features. At present, 1000 radiosondes are launched every day in the world, most of which are in the northern hemisphere.