Radial PV diagrams of the synthetic ¹³CO observations along the disk minor axis for the ﹩{\dot{M}}_{{\rm{in}}}=1{0}^{-7}\,{M}_{\odot }\,{{\rm{yr}}}^{-1}﹩ (left) and ﹩1{0}^{{-}^{6}}\,{M}_{\odot }\,{{\rm{yr}}}^{-1}﹩ (right) models. The centroids of the velocity profiles are shown as cyan dashed lines. The resulting PV wiggles trace velocity perturbations induced by streamer-driven spiral arms.