Wavelength-dependent asymmetry parameter of the aggregate particles (upper panels) and the DHS distribution with porosity (lower panels) for different particle sizes. We show the formal asymmetry parameter of the entire phase function with solid black lines and the effective asymmetry parameter with dashed green lines. This was obtained by fitting a Henyey-Greenstein phase function to the central 80° of the phase function, i.e., from 50–130° scattering angle, representative of a disk with inclination of 40°.