Flux recovery for ¹³CO(1−0) at 10 km s⁻¹ spectral resolution. The native resolution NOEMA data (cyan line) was convolved and regridded to match the 30m data (black line) in resolution. The flux shown is the summed flux per channel inside the central 100 × 100″. NOEMA data tapered to coarser spatial resolutions of about 3, 4, and 6″ (blue, purple, red lines) have higher recovery rates.