The trajectories were generated starting from zonal and meridional model velocity fields from the AVISO project; please see the Global ocean gridded L4 sea surface heights and derived variables reprocessed reference in the documentation section for more details on the dataset. The output of which was integrated using the LAMTA package (6-hour time step) as previously described in Nencioli et al., 2018 (also available in the documentation section).

The computing is similar to that of OLTraj v2.0 supports double value for time variables instead of int64