The drifter positions were edited for outliers and spikes using statistical and manual techniques with criteria based on maximum distance, maximum speed, and maximum angle between two consecutive points, as described in Poulain et al. (2004). Edited positions were interpolated at regular intervals with a kriging optimal interpolation technique (Hansen and Poulain 1996). Velocities were estimated by central finite differencing the interpolated positions. Positions and velocities were subsequently low-pass filtered using a Hamming filter with 36 h to remove high frequency motions and subsampled every 6 h. The data were finally archived in several databases (organized by subbasins or projects) accessible through the Mediterranean SVP (MedSVP) website ( ).
Download Zip >>> https://psfmi.com/2yXSoj