Top panel: perturbations as a function of radial distance and time in intensity (left), LOS Doppler velocity (middle), and CP (right) in Ca II in a polar grid centered on N and averaged over azimuthal angle. The line highlights the phase propagation of the five-minute wave pattern with the speed from lag analysis. Bottom panel: perturbations in intensity (left), LOS Doppler velocity (middle), and CP (right) as a function of angle and time in a polar grid centered on S and averaged over radius. The line highlights the phase propagation of the wave patterns with their corresponding periodicity. A movie of the data filtered around 5 min is available online.