BEHAVIOR OF FLOATING-LITTER IN A RIVER USING FLOATS WITH MOBILE PHONES

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  • 携帯電話搭載型フロートによる河川漂流ゴミ挙動の検討

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Marine litter is mainly supplied from inland area through rivers under hydrologic events. However there have been little information for quantity and quality of floating litter through rivers into coastal region and further behavior of floating litters in river and coastal area. In the present study, GPS floats with mobile phone were used to track a Lagrangian behavior of floating litters in rivers under floodings. In this study, we conducted field measurements of 10 GPS floats in two flooding events in Egogawa River. The results indicate that most of GPS floats were drifted in banks of river mainly due to wind stress. It is found that the moving distance of GPS float for simulated vegetation was larger than that for simulated artificial debris.

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