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Assessing the detection of floating plastic litter with advanced remote sensing technologies in a hydrodynamic test facility

by Calvert, R. , Fonseca, N. , de Fockert, A. , Leonor, N. , Caldeirinha, R. F. S. , Eleveld, M. A. , Moreira, A. , Marques, P. , Simpson, M.D. , Costa, J. R. , van den Bremer, T. S. , Burggraaff, O. , Perez-Portero, A. , Costa, T. S. , Salama, M.S. , Fernandes, C. A. , de Maagt, P. , Vala, M. , Garaba, S. P. , Gandini, E. , Felício, J. M. , Marino, A. , Gonga, A. , Camps, A. , Xiao, Q. , Bakker, W. , Matos, S. A.

in 639/166/986 / 639/624/1107/510 / 639/766/419/1131 / 704/172/4081 / 704/525/2810 / Aquatic environment / Beaches / Biofilms / Civil engineering / Cleanup operations / Environmental monitoring / Experiments / Humanities and Social Sciences / Litter / Measurement techniques / multidisciplinary / Ocean waves / Plastic debris / Plastic pollution / Plastics / Polarization / Polyethylene / Remote sensing / Science / Science (multidisciplinary) / Sensors

2024

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Assessing the detection of floating plastic litter with advanced remote sensing technologies in a hydrodynamic test facility

2024

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2024

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Journal Article

Assessing the detection of floating plastic litter with advanced remote sensing technologies in a hydrodynamic test facility

Calvert, R.,

Fonseca, N.,

de Fockert, A.,

Leonor, N.,

Caldeirinha, R. F. S.,

Eleveld, M. A.,

Moreira, A.,

Marques, P.,

Simpson, M.D.,

Costa, J. R.,

van den Bremer, T. S.,

Burggraaff, O.,

Perez-Portero, A.,

Costa, T. S.,

Salama, M.S.,

Fernandes, C. A.,

de Maagt, P.,

Vala, M.,

Garaba, S. P.,

Gandini, E.,

Felício, J. M.,

Marino, A.,

Gonga, A.,

Camps, A.,

Xiao, Q.,

Bakker, W.,

Matos, S. A.

2024

Overview

Remote sensing technologies have the potential to support monitoring of floating plastic litter in aquatic environments. An experimental campaign was carried out in a large-scale hydrodynamic test facility to explore the detectability of floating plastics in ocean waves, comparing and contrasting different microwave and optical remote sensing technologies. The extensive experiments revealed that detection of plastics was feasible with microwave measurement techniques using X and Ku-bands with VV polarization at a plastic threshold concentration of 1 item/m 2 or 1–10 g/m 2 . The optical measurements further revealed that spectral and polarization properties in the visible and infrared spectrum had diagnostic information unique to the floating plastics. This assessment presents a crucial step towards enabling the detection of aquatic plastics using advanced remote sensing technologies. We demonstrate that remote sensing has the potential for global targeting of plastic litter hotspots, which is needed for supporting effective clean-up efforts and scientific evidence-based policy making.

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Publisher

Nature Publishing Group UK,Nature Publishing Group,Nature Research,Nature Portfolio

Subject

/ Aquatic environment

/ Beaches