Evolution of the Paα emission line (upper subplots) and corresponding differential phase (Δϕ, lower subplots) as a function of the wavelength for aligned CB-SMBH system when the clouds’ orbital eccentricities are drawn from non-uniform distributions; (a) clouds’ orbital eccentricites are drawn from Rayleigh distribution; (b) clouds’ orbital eccentricities are drawn from scaled and shifted Γ_s(0.3, 1) distributions. (a) 𝒞, Ω_k = 100°, k = 1, 2, ω₁ = 110°, ω₂ = 290°, i_c1 = 𝒰(−5° ,5° ), i_c2 = 𝒞, Ω_c1 = 200°, Ω_c2 = 10°, ω_c1 = 150°, ω_c2 = 330°, e_c1 = e_c2 = rndℛ(1), (b) 𝒞, Ω_k = 100° ,k = 1, 2, ω₁ = 110° ,ω₂ = 290°, Ω_c1 = 200° ,Ω_c2 = 10°, ω_c1 = 150°, ω_c2 = 330°, i_c1 = i_c2 = 𝒰(−5° ,5° ), e_c1 = 0.5, e_c2 = rndΓ_s(0.3, 1).