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Simulation of floating in the distribution of waste on the coast of the island
Journal of Marine Science and Technology ( IF 2.6 ) Pub Date : 2020-07-28 , DOI: 10.1007/s00773-020-00753-2 Shyang-Chyuan Fang
Journal of Marine Science and Technology ( IF 2.6 ) Pub Date : 2020-07-28 , DOI: 10.1007/s00773-020-00753-2 Shyang-Chyuan Fang
In this study, the information survey on water depth, currents, buoy drifting of the sea areas around Kinmen was completed from May 19 to May 26, 2019 (during southwest monsoon) and September 1 to September 8, 2019 (during northeast monsoon), and the marine waste drifting simulation model was established. Stony Brook POM with parallel computing is used as the model to simulate the drifting of marine waste. According to the buoy data, the strongest observed surface current can exceed 100 cm/s. However, between islands, most of the estimated surface current velocities distribute from 50 to 80 cm/s. The correlation coefficient between the buoy trajectories and the towed observation velocities is more than 0.8. In the marine waste drifting simulation model, the terrain with higher spatial resolution is included, the model range is extended, and many tidal patterns of Taiwan Strait are brought in. The model results indicate that spring or neap tides flood and ebb similarly and the overall spatial flow fields of the currents are similar. The comparison between the model results and the observations results shows that the correlation coefficients of currents are 0.65 (U) and 0.85 (V). Without the influence of wind fields, most floats move back and forth. Spring tides move back and forth in a large range or a long distance, while neap tides are small. After a day, there is not much chance of landing. During northeasterly winds, regardless of spring and neap tides, the floats move southwestward to the east and north coasts; during spring tides, the floats from the east may drift to the western sea area through the channel between islands. During southwesterly winds, the floats move northeastward, and the floats (from Jiulong River) in the southwest side may land the coasts near the south and southwest sides of Kinmen.
更新日期：2020-07-28
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