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http://hdl.handle.net/10397/90895
Title: | Settling velocity of microplastics exposed to wave action | Authors: | De, Leo, A Cutroneo, L Sous, D Stocchino, A |
Issue Date: | Feb-2021 | Source: | Journal of marine science and engineering, Feb. 2021, v. 9, no. 2, 142, p. 1-16 | Abstract: | Microplastic (MP) debris is recognized to be one of the most serious threats to marine environments. They are found in all seas and oceanic basins worldwide, even in the most remote areas. This is further proof that the transport of MPs is very efficient. In the present study, we focus our attention on MPs’ transport owing to the Stokes drift generated by sea waves. Recent studies have shown that the interaction between heavy particles and Stokes drift leads to unexpected phenomena mostly related to inertial effects. We perform a series of laboratory experiments with the aim to directly measure MPs’ trajectories under different wave conditions. The main objective is to quantify the inertial effect and, ultimately, suggest a new analytical formulation for the net settling velocity. The latter formula might be implemented in a larger scale transport model in order to account for inertial effects in a simplified approach. | Keywords: | Inertial particles Microplastic transport Settling velocity Stokes drift |
Publisher: | MDPI AG | Journal: | Journal of marine science and engineering | EISSN: | 2077-1312 | DOI: | 10.3390/jmse9020142 | Rights: | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). The following publication De Leo, A.; Cutroneo, L.; Sous, D.; Stocchino, A. Settling Velocity of Microplastics Exposed to Wave Action. J. Mar. Sci. Eng. 2021, 9, 142 is available at https://doi.org/10.3390/jmse9020142 |
Appears in Collections: | Journal/Magazine Article |
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jmse-09-00142-v2.pdf | 2.88 MB | Adobe PDF | View/Open |
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