Phase function on a logarithmic scale (upper panel) and degree of polarisation P_s (lower panel) for incident unpolarised, singly scattered light as functions of the scattering angle Θ and the effective size parameter x_eff = 2πr_eff/λ for model cloud particles with v_eff = 0.1, i.e. models A and B₂. For model A (with r_eff = 2.0   μm), the curves shown in Fig. 3 correspond to x_eff = 23, while for model B₂ (with r_eff = 6.0   μm), they correspond to x_eff = 69.