Equatorial and meridional slice of the EUHFORIA simulation domain. The meridional plane contains PSP. In each panel, the left plot depicts the equatorial plane of the heliospheric domain, while the right plot shows the meridional view of the same domain. Panels (a) and (c) display 2D density maps obtained using GONG and ADAPT magnetic maps, respectively. Panels (b) and (d) illustrate 2D velocity maps using GONG and ADAPT magnetic maps, respectively. The meridional plots highlight PSP’s trajectory through a high-density, low-velocity region in both simulations with GONG and ADAPT magnetograms.