f = T 



t = 5/6 T 



PERIOD 

 t = 2/3T t = I/2T 



t = 1/3T t = 1/6T 



t = O 



WAVE DIRECTION 

 -WAVE LENGTH (L)- 



BOTTOM 



t = T 



ELLIPTICAL ORBITS, SHALLOW WATER (BOHOM DEPTH 500 FEET) 



PERIOD 

 t = 5/6T t = 2/3T t=l/2T t=r3T t=16T t = 



d3 

 d. 



WAVE DIRECTION 

 -WAVE LENGTH (L)- 



-0--^^.-j©.-J^ 



^-&' 



^■^~-"e- 



I — c- 



--e— 

 -II— 





— ^O- SL". O- o- — o 



q 0, — 



_a 6— 



U 



d3 

 d. 

 d. 



CIRCULAR ORBITS, DEEP WATER (BOTTOM DEPTH 500 FEET) 



116 



