Figure 7
From: Reliability of Total Grain-Size Distribution of Tephra Deposits
Results of variation of l parameter in the Rosin-Rammler distribution fitting of the 1996 Ruapehu TGSD. (a) Real distribution (black dots) and distribution fitted after fixing the l parameter to 0.5, 0.6, 0.7, 0.8, 0.9, and 1 (colored curves); (b) weight-fraction based (χ) distributions for the same fittings as in (a); (c) residuals (difference of calculated weight fraction χcalc and the empirical weight fraction (χreal) of the distribution fitting, according to the same distribution as in (a). l values are indicated by different colors according to legend of (a). Wd is the weight fraction of particles of diameter smaller or equal to d.
