A new system for measuring deep ocean currents close to the bottom is described. The device is moored in suspension with a float. Four sets of measurements, totaling 75.8 hours, were made at depths down to 5337 m. For one 16-hour period, a steady current of 17 cm/sec was recorded 3.5 m from the bottom at 5192 m. One measurement at 3584 m, 60 miles northeast of Cape Hatteras, indicates that the Gulf Stream extended to the bottom in this region .
Knauss, John A.. 1965. "A technique for measuring deep ocean currents close to the bottom with an unattached current meter, and some preliminary results." Journal of Marine Research 23, (3). https://elischolar.library.yale.edu/journal_of_marine_research/1059