PERIOD, HOURS 



10 



.05 0.1 



FREQUENCY. CYCLES/HR. 



.05 0.1 



FREQUENCY, CYCLES/HR 



Figure 36. Power density spectral estimate, 54-29N, 54-30W, 81 m. level, 22 July-4 August 1970 (Left) . 

 Figure 37. Power density spectral estimate, 54-29N, 54-30W, 124 m. level, 22 July-4 August 1970 (Right). 



51 



