What are the uses of Doppler radar systems?

There is a Doppler radar system that is an advanced weather detection equipment. This system emits beams in all directions with a radius of 200 kilometers, and measures wind speed and direction on various horizontal planes parallel to the ground by detecting the movement of water droplets, grass seeds, dust, insects, etc. in the atmosphere. The weather forecast it makes is very specific: how many millimeters of rain will fall in which place and at what time. Doppler radar systems can also make fairly accurate predictions if a sudden change in airflow direction occurs in a local area within a few minutes.

Another laser Doppler radar, "Lida", is a new device for monitoring ground weather conditions. It is mounted on a polar-orbiting satellite and can measure wind speed twice a day. If two satellites were equipped with "LEDA", this could monitor the atmospheric conditions of the entire Earth. After adopting the "Laida" system, the 7-10 day medium-term weather forecast can be as accurate as the current 24-hour forecast. Airlines can also benefit from "Lida" because pilots have detailed airflow maps at the time and can take advantage of fast-flowing winds to avoid headwinds, which not only saves time and fuel, but also ensures safe and reliable flights.