This pattern then leads to a time-varying horizontal shear. Future research efforts will be concentrated on a thorough study of the forcing mechanism for the flow variations as well as on more detailed analyses of the water transport temporal variability. Figure 1 . Depths are given in meters. Dots represent temperature-salinity measurement locations occupied six times during seasonal hydrographic cruises from February 1994 to May 1995.
Positive values correspond to northward flow.
Stars denote the location of current meters. Heavy white line represents the zero isoline. Figure 3 . Start and end locations are denoted by star and circle symbols, respectively. Arrow symbols plotted along the tracks at daily intervals indicate the direction of drift.