Edge-on view of the detected corrugation using the young giant sample. Left columns : vertical spatial residuals Δ_Z as a function of galactocentric radius, R, for different slices in Galactic azimuth φ, as indicated by the individual labels. Points are colour-coded by the residuals in the vertical velocity Δ_VZ. Black arrows show the direction and magnitude of the median residual vertical velocity Δ_VZ. Right columns : same as left, but colour-coded by the median radial velocity V_R. Black arrows show the direction and magnitude of the median radial velocity V_R.