Fig. 5From: Ionospheric disturbance caused by artificial plasma clouds under different release conditionsThe density of artificial plasma clouds at the release center varies with time under different release masses. The maximum densities of Ba+ clouds are 5.93 × 106 cm−3, 6.06 × 106 cm−3 and 6.84 × 106 cm−3 when 1 kg, 10 kg, and 100 kg of barium are released, respectivelyBack to article page