Updated estimate of double diffusive fluxes in the C-SALT region

The choice of a characteristic magnitude in an earlier article by Lee and Veronis [1991. On the difference between tracer and geostrophic velocities obtained from the C-SALT data. Deep-Sea Research 38, 555–568], using inverse methods on the C-SALT data was based on an inappropriate velocity. As a result, the estimated magnitudes of the vertical diffusivities resulting from salt fingers were too large. The present paper corrects that error and yields a vertical diffusivity for salinity of 0.89×10−4 m2/s, which is consistent with a value derived from a tracer release experiment [Schmitt et al., 2005. Enhanced diapycnal mixing by salt fingers in the thermocline of the tropical Atlantic. Science 308, 685–688].