Fig. 1.From: ULF waves in the outer magnetosphere: Geotail observation 1 transverse wavesAn example of Geotail data plot. Magnetic field and ion velocity components are plotted in GSM coordinates together with electric field variations in spacecraft coordinates. The ion density (N p ), ion temperatures (Tp), magnetic pressure PB ((B T )2/2μ0), plasma pressure PP (NpkT) and the total pressure PT (PP + PB) are shown in the middle part of the figure.Back to article page