Table 1 Grain size, saltation profile, and flux law fit values.

d₅₀ is the median grain diameter for surface samples. Full grain-size distributions for field sites can be found in the study of Martin et al. (83). Farrell et al. (59) did not report a surface grain size, and Greeley et al. (57) and Namikas (58) did not report associated uncertainties. 〈z_q〉 is mean saltation layer height. 〈z_q〉/d₅₀ is the ratio of saltation height to grain size. τ_it and u_*,it are best-fit saltation impact threshold shear stress and shear velocity, respectively, for the linear flux law. C_Q is the best-fit scaling parameter for Eq. 10 for each site. Included uncertainties here and elsewhere represent 1 SD.