säähavaintoradariverkostoa

The Finnish Meteorological Institute (FMI) operates a comprehensive weather radar network across Finland. This säähavaintoradariverkosto, or weather observation radar network, is crucial for real-time monitoring of precipitation and atmospheric conditions. The network consists of several Doppler weather radars strategically located to provide extensive coverage of the country. These radars emit radio waves and analyze the reflections from precipitation particles like rain, snow, and hail. By measuring the frequency shift of the returning waves, Doppler radars can also determine the motion of these particles, providing information about wind speeds within storms.

The data collected by the radar network is used for a variety of purposes. It is essential for short-term weather forecasting, known as nowcasting, allowing meteorologists to track the movement and intensity of precipitation systems. This information is vital for issuing timely warnings for severe weather events such as heavy rainfall, thunderstorms, and potential flooding. Furthermore, the radar data contributes to longer-term climate studies and research into atmospheric phenomena. The FMI makes much of this data publicly accessible, often through online visualizations and data services, aiding researchers, public safety officials, and the general public in understanding current and impending weather. The continuous operation and modernization of the säähavaintoradariverkosto are key to maintaining Finland's capacity for accurate and timely weather observation.