Figure 3

Figure 3: Mean currents at 50 metres (in cm/s) in the western North Atlantic sector of the 1/3° Mercator prototype: (a) free run (NATL3), and (b) sequential assimilation of SST and SSH data using the SEEK filter (NATL3/ASS). The impact of the assimilation is seen mainly in the Gulf Stream separation at Cape Hatteras and the North Atlantic drift.