grid of stations forming sections along meridians and parallels approximately 300 kilo- 

 meters in length would allow full realization of the capabilities of the method. In addition 

 to a more detailed determination of the flow patterns, such a grid would provide means 

 better to determine the validity of deep observations and to assess the importance of in- 

 ternal structure to the deep flow. Observations in the grid should extend to within a 

 few hundred meters of the bottom. 



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