![]() Photo: inside the WSR-88D radar in Jet, Oklahoma, in July 2018 / U.S. More importantly, Doppler radars can remove reflections from the earth's surface that interfere with research. Modern equipment can determine not only the existence and location of atmospheric objects but also their speed. And now they are widely used for operational weather radar systems. Live Doppler radars have been used for over 30 years in the study of thunderstorms and wind. ![]() And the faster the volume rises, the faster the car goes. For example, when an ambulance approaches us, we hear the siren sound louder and louder. ![]() We often see the Doppler effect in our lives. It is on the basis of these changes that it is possible to calculate not only the distance from the radar to thunderclouds or tornadoes but the direction and speed of bad weather movement. It consists in the fact that if the distance between the source of waves (radar) and the object from which the waves are reflected (drops in the atmosphere) changes, then the frequency of the reflected waves also changes. Why such a name? These radars are based on a Doppler effect, named after the Austrian physicist Christian Doppler, who described it in 1842. There are a few different types of radars with their own characteristics, but the main one is Doppler weather radars also called Pulse-Doppler radars. Photo: radar under construction in Puerto Rico / FEMA / Eduardo Martinez / Vertical magazine The main types of weather radars This is due to the fact that different services may use different meteorological models and calculation systems. Radar data is extremely important to ensure safety in settlements and industrial plants (such as hydropower plants) and to prevent property damage from extreme weather.īut it is important to keep in mind that although all services use data from the same radars and weather stations, their weather forecasts may differ. There are also private services.īased on this data, rescue and meteorological services in different countries inform the population about the necessary precautions. Some examples: US National Oceanic and Atmospheric Administration ( NOAA), Met Office UK, Meteorological Service of Canada. The data from live weather radars is used for daily monitoring not only in potentially dangerous regions but also around the world by government organizations, that collect and process meteorological data in their forecasts and research. So the interactive radar is crucial to making accurate real-time “now cast” weather forecasts of precipitation.
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