Simulation of the ocean's salinity by circulation model

The simulation of the ocean circulation is carried out at the CEN in several configurations and spatial resolutions (assimilation and simulation ).  It is used here to fill up  the incomplete description of the sea surface salinity based on in situ data. With this purpose, the information derived from observations and simulations will be compared. E.g. , the amplitude of the annual variation in salinity in the Atlantic Ocean north of 33°S was calculated for the time series at each grid cell (1°x1°) disposing about enough in situ data (Figure on the left).

For the model simulation the amplitude can be calculated at each model grid point (Figure on the right). The simulation compares very well to the observed annual salinity variability, so that we can complete the results from observations with the ones from the simulation.

More results can be found in  Sena Martins et al. (2015).