Lagrangian Particle tracks in the Irminger Sea

The numerical particle trajectories were released in the MITgcm (Massachusetts Institute of Technology General circulation Model (MITgcm; Marshall et al., 1997)) simulation calculated using the 3D-particle tracking algorithm presented in Koszalka et al. (2013) and Gelderloos et al. (2016). This regional setup (described in full in Almansi et al., 2017) covers the eastern subpolar North Atlantic including the Irminger Sea, the Iceland Basin and most of the Nordic Seas (47°W-1°E and 57°-76°N). In each month, we released a five-member ensemble of particles with three days in between individual ensemble members.  This choice to release every three days accounts for intra-seasonal variability whilst remaining below typical storm frequency. Accordingly, we released on every 1st, 4th, 7th, 10th, and 13th day of the month.  Particles were released with a 50 m depth interval in the vertical.