Experimental investigation on the nearshore transport of buoyant microplastic particles

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • Bjarke Eltard Larsen
  • Mustafa Ali Abdullah Al-Obaidi
  • Hasan Gokhan Guler
  • Stefan Carstensen
  • Koray Deniz Goral
  • Erik Damgaard Christensen
  • Nils B. Kerpen
  • Torsten Schlurmann
  • David R. Fuhrman

Externe Organisationen

  • Technical University of Denmark
  • Middle East Technical University (METU)
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Aufsatznummer114610
FachzeitschriftMarine pollution bulletin
Jahrgang187
Frühes Online-Datum18 Jan. 2023
PublikationsstatusVeröffentlicht - Feb. 2023

Abstract

This paper presents experimental measurements of beaching times for buoyant microplastic particles released, both in the pre-breaking region and within the surf zone. The beaching times are used to quantify cross-shore Lagrangian transport velocities of the microplastics. Prior to breaking the particles travel onshore with a velocity close to the Lagrangian fluid particle velocity, regardless of particle characteristics. In the surf zone the Lagrangian velocities of the microplastics increase and become closer to the wave celerity. Furthermore, it is demonstrated that particles having low Dean numbers (dimensionless fall velocity) are transported at higher mean velocities, as they have a larger tendency to be at the free-surface relative to particles with higher Dean numbers. An empirical relation is formulated for predicting the cross-shore Lagrangian transport velocities of buoyant microplastic particles, valid for both non-breaking and breaking irregular waves. The expression matches the present experiments well, in addition to two prior studies.

ASJC Scopus Sachgebiete

Fachgebiet (basierend auf ÖFOS 2012)

  • TECHNISCHE WISSENSCHAFTEN
  • Bauwesen
  • Bauingenieurwesen
  • Wasserbau

Ziele für nachhaltige Entwicklung

Zitieren

Experimental investigation on the nearshore transport of buoyant microplastic particles. / Larsen, Bjarke Eltard; Al-Obaidi, Mustafa Ali Abdullah; Guler, Hasan Gokhan et al.
in: Marine pollution bulletin, Jahrgang 187, 114610, 02.2023.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Larsen, BE, Al-Obaidi, MAA, Guler, HG, Carstensen, S, Goral, KD, Christensen, ED, Kerpen, NB, Schlurmann, T & Fuhrman, DR 2023, 'Experimental investigation on the nearshore transport of buoyant microplastic particles', Marine pollution bulletin, Jg. 187, 114610. https://doi.org/10.1016/j.marpolbul.2023.114610
Larsen, B. E., Al-Obaidi, M. A. A., Guler, H. G., Carstensen, S., Goral, K. D., Christensen, E. D., Kerpen, N. B., Schlurmann, T., & Fuhrman, D. R. (2023). Experimental investigation on the nearshore transport of buoyant microplastic particles. Marine pollution bulletin, 187, Artikel 114610. https://doi.org/10.1016/j.marpolbul.2023.114610
Larsen BE, Al-Obaidi MAA, Guler HG, Carstensen S, Goral KD, Christensen ED et al. Experimental investigation on the nearshore transport of buoyant microplastic particles. Marine pollution bulletin. 2023 Feb;187:114610. Epub 2023 Jan 18. doi: 10.1016/j.marpolbul.2023.114610
Larsen, Bjarke Eltard ; Al-Obaidi, Mustafa Ali Abdullah ; Guler, Hasan Gokhan et al. / Experimental investigation on the nearshore transport of buoyant microplastic particles. in: Marine pollution bulletin. 2023 ; Jahrgang 187.
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abstract = "This paper presents experimental measurements of beaching times for buoyant microplastic particles released, both in the pre-breaking region and within the surf zone. The beaching times are used to quantify cross-shore Lagrangian transport velocities of the microplastics. Prior to breaking the particles travel onshore with a velocity close to the Lagrangian fluid particle velocity, regardless of particle characteristics. In the surf zone the Lagrangian velocities of the microplastics increase and become closer to the wave celerity. Furthermore, it is demonstrated that particles having low Dean numbers (dimensionless fall velocity) are transported at higher mean velocities, as they have a larger tendency to be at the free-surface relative to particles with higher Dean numbers. An empirical relation is formulated for predicting the cross-shore Lagrangian transport velocities of buoyant microplastic particles, valid for both non-breaking and breaking irregular waves. The expression matches the present experiments well, in addition to two prior studies.",
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T1 - Experimental investigation on the nearshore transport of buoyant microplastic particles

AU - Larsen, Bjarke Eltard

AU - Al-Obaidi, Mustafa Ali Abdullah

AU - Guler, Hasan Gokhan

AU - Carstensen, Stefan

AU - Goral, Koray Deniz

AU - Christensen, Erik Damgaard

AU - Kerpen, Nils B.

AU - Schlurmann, Torsten

AU - Fuhrman, David R.

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N2 - This paper presents experimental measurements of beaching times for buoyant microplastic particles released, both in the pre-breaking region and within the surf zone. The beaching times are used to quantify cross-shore Lagrangian transport velocities of the microplastics. Prior to breaking the particles travel onshore with a velocity close to the Lagrangian fluid particle velocity, regardless of particle characteristics. In the surf zone the Lagrangian velocities of the microplastics increase and become closer to the wave celerity. Furthermore, it is demonstrated that particles having low Dean numbers (dimensionless fall velocity) are transported at higher mean velocities, as they have a larger tendency to be at the free-surface relative to particles with higher Dean numbers. An empirical relation is formulated for predicting the cross-shore Lagrangian transport velocities of buoyant microplastic particles, valid for both non-breaking and breaking irregular waves. The expression matches the present experiments well, in addition to two prior studies.

AB - This paper presents experimental measurements of beaching times for buoyant microplastic particles released, both in the pre-breaking region and within the surf zone. The beaching times are used to quantify cross-shore Lagrangian transport velocities of the microplastics. Prior to breaking the particles travel onshore with a velocity close to the Lagrangian fluid particle velocity, regardless of particle characteristics. In the surf zone the Lagrangian velocities of the microplastics increase and become closer to the wave celerity. Furthermore, it is demonstrated that particles having low Dean numbers (dimensionless fall velocity) are transported at higher mean velocities, as they have a larger tendency to be at the free-surface relative to particles with higher Dean numbers. An empirical relation is formulated for predicting the cross-shore Lagrangian transport velocities of buoyant microplastic particles, valid for both non-breaking and breaking irregular waves. The expression matches the present experiments well, in addition to two prior studies.

KW - Breaking waves

KW - Buoyant particles

KW - Lagrangian transport velocities

KW - Microplastic particles

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