Fig. 10From: Spectral moments for the analysis of frequency shift, broadening, and wavevector anisotropy in a turbulent flowCluster observation of wavevector spectrum in the solar wind (left panel) and reconstruction using the spectral moments (eigenvalue ratio of 0.32 and eigenvectors of the spectral moment tensor) and the elliptic power-law model (right panel). The flow direction is normal to the panel Back to article page