TY - JOUR
T1 - Fate of microplastics and mesoplastics carried by surface currents and wind waves
T2 - A numerical model approach in the Sea of Japan
AU - Iwasaki, Shinsuke
AU - Isobe, Atsuhiko
AU - Kako, Shin'ichiro
AU - Uchida, Keiichi
AU - Tokai, Tadashi
N1 - Funding Information:
The authors would like to thank Prof. Hidenori Aiki (Nagoya University) and Prof. Mark Donelan (University of Miami) for their helpful comments on the wave model. Thanks are also extended to the Captains, officers, and crews of the T/V Umitaka-maru and T/V Shinyo-maru for their assistance during the field surveys. Part of this research was supported by the Ministry of the Environment, Japan , JANUS , Naigai Map Production , and the Environmental Research and Technology Development Fund ( 4-1502 ) of the Ministry of the Environment. Two reviewers provided valuable comments that helped us improve this paper significantly.
Funding Information:
The authors would like to thank Prof. Hidenori Aiki (Nagoya University) and Prof. Mark Donelan (University of Miami) for their helpful comments on the wave model. Thanks are also extended to the Captains, officers, and crews of the T/V Umitaka-maru and T/V Shinyo-maru for their assistance during the field surveys. Part of this research was supported by the Ministry of the Environment, Japan, JANUS, Naigai Map Production, and the Environmental Research and Technology Development Fund (4-1502) of the Ministry of the Environment. Two reviewers provided valuable comments that helped us improve this paper significantly.
Publisher Copyright:
© 2017 The Authors
PY - 2017
Y1 - 2017
N2 - A numerical model was established to reproduce the oceanic transport processes of microplastics and mesoplastics in the Sea of Japan. A particle tracking model, where surface ocean currents were given by a combination of a reanalysis ocean current product and Stokes drift computed separately by a wave model, simulated particle movement. The model results corresponded with the field survey. Modeled results indicated the micro- and mesoplastics are moved northeastward by the Tsushima Current. Subsequently, Stokes drift selectively moves mesoplastics during winter toward the Japanese coast, resulting in increased contributions of mesoplastics south of 39°N. Additionally, Stokes drift also transports micro- and mesoplastics out to the sea area south of the subpolar front where the northeastward Tsushima Current carries them into the open ocean via the Tsugaru and Soya straits. Average transit time of modeled particles in the Sea of Japan is drastically reduced when including Stokes drift in the model.
AB - A numerical model was established to reproduce the oceanic transport processes of microplastics and mesoplastics in the Sea of Japan. A particle tracking model, where surface ocean currents were given by a combination of a reanalysis ocean current product and Stokes drift computed separately by a wave model, simulated particle movement. The model results corresponded with the field survey. Modeled results indicated the micro- and mesoplastics are moved northeastward by the Tsushima Current. Subsequently, Stokes drift selectively moves mesoplastics during winter toward the Japanese coast, resulting in increased contributions of mesoplastics south of 39°N. Additionally, Stokes drift also transports micro- and mesoplastics out to the sea area south of the subpolar front where the northeastward Tsushima Current carries them into the open ocean via the Tsugaru and Soya straits. Average transit time of modeled particles in the Sea of Japan is drastically reduced when including Stokes drift in the model.
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U2 - 10.1016/j.marpolbul.2017.05.057
DO - 10.1016/j.marpolbul.2017.05.057
M3 - Article
C2 - 28559056
AN - SCOPUS:85019664237
SN - 0025-326X
VL - 121
SP - 85
EP - 96
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
IS - 1-2
ER -