2D power spectrum of the total velocity field (black) and its compressive (blue) and solenoidal (red) components computed from 1 (bottom), 2 (middle) and 5 Mpc (top) square maps extracted from the slices. The squares are displayed in the top row of Fig. 6, and their centre’s position can be found in Tab. 1. From left to right, each column presents the power spectra extracted from a given slice at a distance of between -8 and 6 Mpc from the Virgo centre; they are each 2 Mpc apart.