Laboratory photometry of planetary regolith analogs: I. Effects of grain and packing properties on opposition effect

摘要: New laboratory phase curves are presented to act as ground truth for solar system regolith photometry. The effects of physical parameters such grain size, surface roughness, and packing density on backscattering peak can be recognized, but it turns out that the same parameter may have different depending sample, mixed with each other. These a strong limitations modelling, since scattering models usually do not distinguish between compositions or predict parameters. Furthermore, attention should paid only chemical characteristics well. This emphasizes role experiments in study opposition effect characterization. As experimental approach becomes more significant, methods must constantly improved suit better remote sensing purposes achieve large database.