Fig. 6From: Cluster observation of magnetohydrodynamic turbulence in the plasma sheet boundary layerFour-dimensional energy spectrum in the mean-field-aligned (MFA) coordinate system spanning the mean magnetic field (the parallel direction) and the two perpendicular directions to the mean field (of which the perpendicular-1 is the closest to the mean flow direction) in the same format as in Fig. 5.Back to article page