Characteristic of variable depth effects measured from early KiDS-1000 data. Top panel: redshift distributions of source galaxies in the third tomographic bin (S3) in 10 equi-populated bins of r_lim (1σ adaptive aperture size). Centre panel: effective galaxy number density as a function of r_lim in the five source galaxy bins, together with linear fits. Lower panel: same as centre panel but for the observed ellipticity dispersion σ_ϵ.