Composite magnetic field configurations and corresponding integral magnetic observables for superpositions of global and small-scale magnetic fields. Columns in panel (a): maps of the combined magnetic field for the same global dipolar geometry (B_d = 1 kG, β = 60°) with an added isotropic small-scale field of varying strength (0–2 kG, indicated above each column). These plots display flattened polar projections of the radial, meridional, and azimuthal magnetic field components. In each polar plot, the thick circle marks the stellar equator, and dotted lines indicate latitude intervals of 30°. Panel (b): mean longitudinal magnetic field, ⟨B_z⟩ (top) and the mean field modulus, ⟨B⟩ (bottom) for the three superpositions of small-scale and global fields (solid lines) as well as for the small-scale field alone (dashed lines).