Science Meetings

The North Atlantic Subtropical Surface Salinity Maximum as Observed by Aquarius
Bingham, F., Busecke, J., Gordon, A., Giulivi, C., and Li, Z. (26-Feb-14)

The subtropical surface salinity maximum (SSM) in the North Atlantic was studied as part of the SPURS (Salinity Processes in the Upper Ocean Regional Study) experiment in 2012-2013. This poster documents the structure and variability of the SSM using Aquarius data during the two-year period August 2011 - August 2013. The Aquarius data show the seasonal migration and freshening of the SSM in good agreement with previous observations. The extent of the SSM has a surprisingly large amount of secular variability. It has decreased in area by about 20% over the time period that Aquarius has been making measurements. There has also been a general freshening of the area where the SSM is located, larger than any expected seasonal changes.