WLIS 

 AUGUST 1986 



N = 63 



0.4 0.B 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 4.8 5.2 



BOUNDARY ROUGHNESS (CM) 



WLIS REF 

 AUGUST 1986 



N = 20 



0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 4.8 5.2 



BOUNDARY ROUGHNESS (CM) 



Figure 3-11. Frequency distributions of boundary roughness 

 values at WLIS and WLIS reference. 



