SEAWAY 



77 



Divide Contoured Values by 10'' 

 to get Sum of Squares of Amplitudes 

 in an Elemental Square (2 71/1200 Ft 

 ot the Wave Number Plane. Thus the 

 Inner Contours are 0.26 Ft^, 0.24 Ft ^, 

 0.22 Ft^ Etc. 



100° 



2TT 



eo 

 I 



2TT 

 60 



110" 



2TT 

 ■ 80 



120° 



21T 

 120 



27V 

 240 



240 



.130° 



.140° 



150 



-160 



-170° 



2TV 

 ■ 120 



80 



J80° 



190° 



I I 



I I 



I I 



2Tr 



' GO 



21T 

 60 



200° 



Fig. 86 (From Chase, et al, 1957) 



