NOAA tests sounds as air pollution monitoring technique


  • Anonymous


Scientists of the National Oceanic and Atmospheric Administration are testing a system designed for observing and forecasting air pollution conditions through the use of sound. A special instrument called an acoustic echo sounder enables them to see with unprecedented accuracy the height and undulations of the atmospheric inversion, a region of cold air topped by a warm layer that traps and concentrates pollutants.

These data together with conventional meteorological methods, enables local authorities to improve their air pollution control warnings and decisions.