Top: median W(l, b) of the DIB absorption field, measured from all clean residuals, in 0.8 deg² pixels (Section 3.1). The gray contours outline a projected disk distribution at 6 kpc (Section 5). Middle: median velocity (v_LSR) of well-detected DIB features (Section 4.3). Bottom: median profile width σ of well-detected DIB features (Section 4.4). A profile width of 2 Å  corresponds to about 40 km s⁻¹ here. All panels share a common x axis, shown below the bottom panel.