Comparison of crater diameter differences (ΔDiameter = Diameter_Rubanenko –Diameter_Wang) as a function of latitude for the (a) north and (b) south polar regions for common craters in both catalogs. Filled circles show individual crater measurements, while solid black lines denote least-squares linear fits to the data. The fitted intercept represents the diameter difference at 60° latitudes, and the slope quantifies the poleward variation in ΔDiameter toward the poles. Φ in the linear equation represents latitude. The horizontal dashed line marks ΔDiameter = 0 m.