Fig. 2 Relationships of (a) 
µ and (b) 
as functions of l/z and the standard deviation of lnt at depth l (l) for the GTF (1 = 0.5 and 2 = 1). The values of l are shown on the curves
Fig. 2 Relationships of (a) µ and (b) as functions of l/z and the standard deviation of lnt at depth l (l) for the GTF (1 = 0.5 and 2 = 1). The values of l are shown on the curves