The physical oceanography of the transport of floating marine debris

Erik van Sebille, Lonneke Goddijn-Murphy, 35 Others

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Abstract

Marine plastic debris floating on the ocean surface is a major environmental problem. However, its distribution in the ocean is poorly mapped, and most of the plastic waste estimated to have entered the ocean from land is unaccounted for. Better understanding of how plastic debris is transported from coastal and marine sources is crucial to quantify and close the global inventory of marine plastics, which in turn represents critical information for mitigation or policy strategies. At the same time, plastic is a unique tracer that provides an opportunity to learn more about the physics and dynamics of our ocean across multiple scales, from the Ekman convergence in basin-scale gyres to individual waves in the surfzone. In this review, we comprehensively discuss what is known about the different processes that govern the transport of floating marine plastic debris in both the open ocean and the coastal zones, based on the published literature and referring to insights from neighbouring fields such as oil spill dispersion, marine safety recovery, plankton connectivity, and others. We discuss how measurements of marine plastics (both in situ and in the laboratory), remote sensing, and numerical simulations can elucidate these processes and their interactions across spatio-temporal scales.
Original languageEnglish
Article number023003
Number of pages33
JournalEnvironmental Research Letters
Volume15
Issue number2
Early online date20 Jan 2020
DOIs
Publication statusPublished - 17 Feb 2020

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Keywords

  • fluid dynamics
  • marine debris
  • ocean circulation
  • physical oceanography
  • remote sensing

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