Fig. 2From: Atmospheric structures in the troposphere as revealed by high-resolution backscatter images from MU radar operating in range-imaging modeAs in Fig. 1, but on June 30, 2016, from 12:00 to 18:00 LT during the ShUREX 2016 campaign. The striking feature of this radar image is the intrusion of warm, dry air mass over the colder but moist, nearly saturated air adjacent to the ground, leading to the formation of a turbulent “layer” sandwiched between two high humidity gradient “sheets” at the junction of the two air masses at around 3–4 km altitude. The dark vertical lines are commercial aircraft tracks. The inverted V-shaped track in the lower part around 15:30 LT is that of the UAVBack to article page