气候变化领域集成服务门户(CCPortal): Laboratory Measurements of the Wave-Induced Motion of Plastic Particles: Influence of Wave Period, Plastic Size and Plastic Density

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DOI	10.1029/2020JC016294
	Laboratory Measurements of the Wave-Induced Motion of Plastic Particles: Influence of Wave Period, Plastic Size and Plastic Density
	Alsina J.M.; Jongedijk C.E.; van Sebille E.
发表日期	2020
ISSN	21699275
卷号	125 期号:12
英文摘要	The transport of plastic particles from inland sources to the oceans garbage patches occurs trough coastal regions where the transport processes depend highly on wave-induced motions. In this study, experimental measurements of the plastic particles wave-induced Lagrangian drift in intermediate water depth are presented investigating the influence of the wave conditions, particle size and density on the motion of relatively large plastic particles. A large influence of the particle density is observed causing particles to float or sink for relative densities lower and larger than water respectively. The measured net drift of the floating particles correlates well with theoretical solutions for particle Stokes drift, where the net drift is proportional to the square of the wave steepness. Floating particles remain at the free water surface because of buoyancy and no evidence of any other influence of particle inertia on the net drift is observed. Nonfloating particles move close to the bed with lower velocity magnitudes than the floating particles’ motion at the free surface. The drift of nonfloating particles reduces with decreasing wave number, and therefore wave steepness. © 2020. The Authors.
英文关键词	coastal waves; marine plastic; wave flume experiment
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186553
作者单位	Laboratory of Maritime Engineering, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain; Department of Civil and Environmental Engineering, Imperial College London, London, United Kingdom; Institute for Marine and Atmospheric Research, Utrecht University, Utrecht, Netherlands
推荐引用方式 GB/T 7714	Alsina J.M.,Jongedijk C.E.,van Sebille E.. Laboratory Measurements of the Wave-Induced Motion of Plastic Particles: Influence of Wave Period, Plastic Size and Plastic Density[J],2020,125(12).
APA	Alsina J.M.,Jongedijk C.E.,&van Sebille E..(2020).Laboratory Measurements of the Wave-Induced Motion of Plastic Particles: Influence of Wave Period, Plastic Size and Plastic Density.Journal of Geophysical Research: Oceans,125(12).
MLA	Alsina J.M.,et al."Laboratory Measurements of the Wave-Induced Motion of Plastic Particles: Influence of Wave Period, Plastic Size and Plastic Density".Journal of Geophysical Research: Oceans 125.12(2020).