Integrated intensity maps of the blue and red clouds are displayed in panels (a, b, d, e, g, h), with the velocity range displayed in the upper left corner of each panel. Corresponding P–V diagrams with latitude-velocity data integrated across a longitude range of l = 13.06° to l = 13.54° in panels (c, f, i). The upper three panels (a–c) illustrate the ¹³CO emission line, while the middle three panels (d–f) depict the C¹⁸O emission line, and the lower three panels (g–i) present the HCO⁺ emission line. Each panel includes the integration ranges indicated in the bottom right corner. V-shaped features are showing in the P–V diagrams (c, f, i), and bridging features are highlighted with arrows in panel (c). Additionally, panel (c) shows the approximate velocity ranges of the two components, with the G013.313-blue component marked by a blue box and the G013.313-red component by a red box.