¥Fig 5a. Salinity variability on Georges Bank (0-30m) (bars, left axis, PSU) versus the distance of the north wall of the Gulf Stream (GS) from the shelf break in the Middle Atlantic Bight (solid line, right axis, km).  A one-year smoothing was applied to the north wall series (T. Rossby, pers. comm).  Note that the salinity series leads the GS series by about 6 to 8 months.