The thermosalinograph indicated two fronts, one at 13° - 14°C and another front at 12° - 13°C some 100 km to the east. Both are seen in the Seasoar section. The 12° - 13°C front appears to be the more important one since it connects with the thermocline and is associated with a stronger salinity and density gradient. Unfortunately the section does not extend far enough on both sides to get a clear picture of the regions beyond the fronts.

Note that the effects of the temperature and the salinity gradients on the density field oppose each other but the temperature change dominates; the salinity change is not large enough to produce full density compensation. The STF is therefore associated with geostrophic flow. Shipborne ADCP data indicated a current in excess of 1 knot to the north east.