Microstructure and acoustic Doppler current profiler measurements were taken at two sites on Georges Bank: in a shallow (45 m) well-mixed region on top of the bank and in a deeper (75 m) more stratified region on the southern flank. Each site was visited twice, April 25 to May 3, 1995, and June 6--16, 1995. At both sites the dominant variability in the turbulent kinetic energy dissipation rate ϵ was related to the semidiurnal M2 tide. In the well-mixed lower portions of the water column a phase delay was observed between ϵ and the current speed. The delay increased with height above the bottom. There was also a depth-dependent phase delay in the square of the vertical shear of horizontal velocity, S2, of the M2 component. This phase lag has a depth dependence similar to that found for ϵ, which suggests that the turbulent mixing is locally generated by the current shear, as opposed to having propagated from the boundary. ¿ 2001 American Geophysical Union