Figure 1
From: Eddy, drift wave and zonal flow dynamics in a linear magnetized plasma
(a) Spatio-temporal evolutions of ion saturation current (Iis) measured by the 64-channel azimuthal probe arrays at r = 4 cm. (b) Temporal evolutions of reconstructed azimuthal structures of nonlinear drift wave by the azimuthal probe arrays. The azimuthal angle (θ) of the vertical axis in (a) is transformed to θ′ = θ − vpt, where vp indicates the phase velocity of the nonlinear drift wave. The pink and yellow arrows indicate the ‘splash’ and ‘density bump of solitary eddy’. (c) Time evolutions of Iis at (θ = 0.94 rad/2π (a) (solid black line) and low passed (<1 kHz) data (dotted red line). (d) Floating potential fluctuation (0.1–1 kHz) at r = 4 cm measured by the movable probe.
