2] as the Stokes drift and the Ekman drift velocity constituents, respectively.
the characteristic vertical extent of the Ekman drift layer is larger than the characteristic vertical extent of the Stokes drift layer.
2] (the Ekman drift velocity constituent) rotate with depth in opposite directions.
The mismatch between the rates of hitting the coast and leaving the coast may stem from the different balance between the impact of the Ekman drift and the mean circulation and internal meso-scale dynamics on the surface drift in different seasons.
The surface dynamics is largely determined by the Ekman drift and relatively weakly correlated with the dynamics of underlying water masses during windy months.
It only diminishes for short time intervals during windy months when wind-stress and resulting Ekman drift apparently dominate at the sea-surface, override the anisotropic transport to the west and cause relatively large excursions of the surface particles in all directions, optionally until the nearshore.