Sound Propagation in the Near-Ground Atmosphere
Monday, November 13, 2000 4:00 p.m. Dr. D. Keith Wilson U.S. Army Research Laboratory Adelphi, Maryland http://www.arl.army.mil/main/Main The surface layer of the atmosphere (roughly the lowermost 50 to 100 m) is characterized by vigorous turbulence and sharp vertical gradients in the wind speed and temperature. These phenomena affect sound propagation near the ground in complex…