Doppler radar
Storm movement tracker
Doppler radar is a radar system that detects not just the position of objects but their velocity, by measuring changes in the frequency of reflected signals.
Objects moving toward the radar compress the waves; objects moving away stretch them.
This principle makes Doppler radar essential for weather forecasting, where it tracks storm movement and wind patterns, and for police speed guns: He got pulled over by Doppler radar doing eighty-five.
- stormSevere atmospheric disturbance
- severe weatherDangerous atmospheric phenomena
- mesocycloneRotating updraft in supercells
- meteorologyStudy of atmospheric phenomena
- reflectivityLight-bouncing capacity
storm tracking · weather map · local news · wave · hurricane · echo · tornado · rain · wind shear · pulse · blip · beam · signal · thunderstorm · precipitation · shift · wavelength · forecast
- weather termssunny, rainy, cloudy, stormy, snowy
- meteorologyweather, rain, wind, snow, clouds
- weather forecastingforecast, forecasts, weather forecast, weather report, weather reports
- weather safetytornado warning, hurricane warning, blizzard warning, flood warning, weather alert
- Prediction Toolsbarometer, thermometer, satellite, weather vane, almanac
- radar usesair traffic control, storm tracking, hurricane tracking, air defense, collision avoidance
Doppler radaroptical telescope
Device magnifying through lenses
infrared sensor · passive sonar · visual observation · seismometer · naked eye
Doppler radarweather balloon
Airborne meteorology instrument platform
rain gauge · anemometer · direct observation · thermometer · barometer