LjJ 

 > 



o 



GD 

 < 





-5- 



-10- 



PROFILE LINE 62 



IB fiUG Bl 

 23 RUG 81 



28 SCP 81 



16 OCT Bl 



26 OCT 81 

 4 NOV 81 



4 NOV Bl 



17 NOV 82 



17 NOV 81 

 30 NOV 81 



16 DEC Bl 



5 JfiN 82 



7 OCT 82 

 H OCT 82 



16 OCT 82 



27 OCT 82 



6 NOV 82 



5 DEC 82 



6 DEC 82 



14 oe:c 82 



PROFILE LINE 188 



FIRST SURVEY 

 SECOND SURVEY 



10 RUG 81 



25 RUG 81 



5 OCT 81 

 16 OCT 81 



22 OCT 91 

 3 NOV 81 



10 NOV 81 

 16 NOV 81 



23 NOV 81 

 27 NOV Bl 



7 DEC 81 

 5 JflN 82 



23 SEP 82 

 15 OCT 82 



15 OCT 82 



26 OCT 82 



3 NOV 82 

 1 DEC 82 



7 DEC 82 

 15 DEC 82 



200 



400 



■ I ■ ' 

 600 



200 400 600 



DISTANCE (M) 



Figure 5. Survey data from Duck, NC, from August 1981 to December 1982 showing 

 fluctuation of closure depth as indicated by vertical arrows (after Birl<emeier 

 (1985)) 



12 



Chapter 2 Inner Shelf Concepts 



