“…However, such estimates of threshold values and their effects on saltation occurrence may be complicated by uncertainties in measurements of wind speeds, turbulence properties, soil moisture, and sediment size distributions. In addition, translation of saltation activity and threshold values among different modes of investigation (i.e., observational, experimental, theoretical, and numerical) is fraught with issues of measurement scale and methodology (e.g., Barchyn, Martin, et al, ; Martin et al, ), leading to suggestions for standardized analysis protocols (Barchyn et al, ; Ellis et al, ; Sherman et al, ). Further work is needed to improve measurement techniques, standardize analysis protocols, and constrain the role of environmental factors in the determination of threshold values.…”