138 



Fluctuations 



Key is small in July, rather than largest, are at first sight rather startling 

 and require explanation. 



Another noteworthy feature of the Florida Current is that the region of 

 anticyclonic shear in the section off Miami is extensive. So far as direct 

 velocity measurements from an anchored vessel are concerned, the data 



MIAMI 



CAT KEY 



Fig. 71. Sample surface velocity profile of the Florida Current between 

 Miami and Cat Key, according to Murray's (1952) towed-electrode measure- 

 ments. 



are scanty. The only observations at different depths are those made by 

 Pillsbury (1891), and these show a rapid decrease of velocity with depth. 

 The axis of maximum surface velocity is not in the center, but is dis- 

 placed toward Miami ; and this feature has been verified on many crossings 

 of the Current off" IVIiami by Murray (1952). Fig. 71 shows measurements 

 made by towed electrodes on one of these crossings, but it should be em- 

 phasized that the towed-electrode method is likely to give particularly 



