Clear Air and Wildfire Measurements From Solid-State Weather Radars

Can solid-state weather radars effectively measure clear-air echoes and contribute to wildfire monitoring? This question is central to understanding the potential of modern radar technology in detecting and analyzing subtle atmospheric phenomena.
Clear-air echoes, which result from weak returns caused by small airborne targets like birds, insects, and particulate matter, are essential for observing critical meteorological features. These features include temperature inversions and the early stages of thermal convection within the boundary layer and other key indicators for severe weather events, such as gust fronts. However, the ability of solid-state radars, known for their lower power output compared to traditional magnetron radars, to detect such faint signals has been a subject of investigation.
Our study, conducted across the Meteopress radar network, shows that solid-state weather radars are indeed capable of accurately detecting clear-air echoes. By utilizing a specialized scanning strategy that enhances sensitivity, these radars capture weak atmospheric returns, enabling detailed observation of turbulence, wind shear, and other important atmospheric processes within the boundary layer.
Beyond meteorology, these findings have important implications for wildfire monitoring. The enhanced sensitivity allows for better detection of wildfires by measuring fine particles from the fires
In conclusion, our research demonstrates that solid-state weather radars are fully capable of measuring clear-air echoes. This capability not only enhances weather forecasting and air traffic control but can also support effective wildfire monitoring, proving the versatility and value of this radar technology.