Rough Thermocline 



Rough thermoclines are the vertical oscillations that occur 

 more rapidly than the 12-second scan can follow and yet produce 

 a wave-like form. Scans of 120 feet apart may fall at different 

 internal-wave phases and thus show an irregular wave structure. 

 The wavelengths average less than 1400 feet or about 4 cycles per 

 mile. Two selected examples, identified as R-l and R-2 (fig. 10) 

 and presented in figures 13A and 13B, come from the extreme 

 northern and southern parts of the area. To reconstruct the in- 

 ternal-wave forms, a few of the scattered points have been con- 

 nected with a fine line . 



25 



