Frequency-Direction Spectrum 



Date; 10 Oct 86 Time: 0400 



H^^ = 0.62 m fp IPS = 0.308 Hz 



e^7os = 52.0 deg T^ ,^3 = 3.2 sec 



a. Perspective plot 



Contours in Tenths of Maxinnum S(f,9) 



90.0 60.0 30.0 0.0 -30.0 -60.0 -90.0 



*- North e (deg) South -> 



Angle from Normal to Array 



b. Contour plot 



Figure 5. Spectra from an early storm case 



50 



