Difference plots. Top: difference between observed and modeled T_B,8.25, for the rough, Bond albedo-rescaled, model (last column of Fig. F.1). Middle: T_B,8.25 – T_B,11.25 brightness temperature difference as a function of incidence angle. Bottom: T_B,8.25 – T_B,11.25 brightness temperature difference as a function of local time. Black: data. Red: model. Left: leading side (Obs. 18). Right: trailing side (Obs. 27).