SPINDEL: PHASE FLUCTUATIONS, COHERENCE AND INTERNAL WAVES 





10i 



406 Hz 



Depth = 305 m 

 Range = 2 00 km 



5,000 



10,000 15,000 



SECONDS 



20,000 



Figure 5. PHASE FLUCTUATIONS COMPARED FOR 220 AND 406 Hz 



431 



