15+ FUP "°UNO STATIONS 

 OCTOBER 1985 



1 23456789 16 



III 



P1EAH RPD DEPTH (CM) 



, 5 , FUP EDGE AND AMBIENT STATIONS 

 OCTOBER 1985 



V 5- 



H — I 1 1 1 (• 



B 123456789 18 

 MEAN RPD DEPTH <CH> 



Y 5-- 



CLIS REFERENCE 

 OCTOBER 1985 



ll 



H 1 1 1 1 1 h 



8 123456789 18 

 MEAN RPD DEPTH < CH ) 



Figure 3-9. The frequency distributions of mean apparent 

 RPD depths for mound, edge and ambient, and 

 CLIS-REF stations. 



