Temporal evolution of large-scale flows around the sunspot with penumbra. The quantities shown are similar to Figure 6. In contrast to Figure 6(b)) where we presented a time average from 12–24 hr, we show here in panel (a) a time average from 6 to 12 hr and in panel (b) the average from 18 to 24 hr. Overall we see a trend of decreasing flow velocities in the region R > 20 Mm. While the photospheric flow speeds in panel (a) are comparable to those found for the sunspot without penumbra (Figure 6(a)), panel (b) shows a reduction by about a factor of two. In addition the separation of the flow component 4 (as defined in Figure 6) becomes more evident.