Coast 



(a) 



180-meter 

 depth contour 



p 



1 







I 



5 













( 



1 



' 







I 



) 



1 ■ 





— // 

































































































































(- 

































X 



s 

































(b) 



A 





1 



B 



1 













\ 



C 







D 

 \ 



































































































































































i 





(c) 



Figure 23. Orthogonal curvilinear grid system in the Z-plane 

 (a), in the £-plane (b) , and in the computing 

 grid (c) . 



