Forward in-time particle-tracking simulation in the Kuroshio Extension re-circulation gyre in 2019 using GLORYS12

In total 15 million tracers were uniformly released every 1/72° in the geographical region of 20-39°N / 120-155°E and their surface transport was modeled for 26 days until 3 September 2019 when the physical microplastic sampling was conducted in the target eddy. Units are expressed as the normalized number of tracer particles in each grid of 1/12° horizontal resolution. The particle number 10 indicates that the number of particles in a grid is 10 or more. Contours below 1.0 m are indicated with dashed lines.