Table 7.-Standard deviations of differences for CTD intercomparisons 



Arrangement of Soviet (left) and American conductivity- 

 temperatiire-depth instruments during intercomparison 

 experiments on RV Akademick Vernadsky in the jail of 

 1976. (Photograph: R. Millard.) 



The Alexaev current meters on the Soviet surface 

 moorings indicated higher speeds than American current 

 meters on Soviet surface and American subsurface moor- 

 ings. The results were as anticipated from previous inter- 

 comparisons carried out by SCOR Working Group 21. The 

 speeds at 4,000 m were about 30% higher on the 

 Alexaev current meters. 



Local Dynamics Experiment 



The scientific objectives of the Local Dynamics Experi- 

 ment, scheduled to begin in summer 1977, include: 



1. Studies of the kinematics and structure of the eddy 

 field: spatial and temporal scales of the field, kinetic, and 

 available potential energy of the eddies, phase relation- 

 ships and phase velocities in the eddy field, etc. Evalua- 

 tion of variability of the eddy properties in depth and 

 horizontal directions. 



2. Studies of the large-scale currents in the regions of 

 investigation, variation of the currents in depth and time. 



3. Studies of smaller-scale, higher-frequency phenomena 

 in the ocean (internal waves, inertial currents, smaller- 

 scale, higher-frequency structure), processes in the upper 

 ocean, and their interaction with the eddies. 



4. Studies of local dynamics of the eddy field proper. 

 Vorticity balance in the mesoscale eddy field, energy ex- 

 change between adjacent eddies, heat and mass fluxes. 



5. Studies of the eddy-mean flow interaction. Kinetic 

 and available potential energy exchange between the 

 mean flow and eddies. 



6. Studies of the lower atmospheric processes related 

 to ocean eddies. 



17 



