Article

Investigating the Backscatter of Marine Plastic Litter Using a C- and X-Band Ground Radar, during a Measurement Campaign in Deltares

Details

Citation

Simpson MD, Marino A, de Maagt P, Gandini E, de Fockert A, Hunter P, Spyrakos E, Telfer T & Tyler A (2023) Investigating the Backscatter of Marine Plastic Litter Using a C- and X-Band Ground Radar, during a Measurement Campaign in Deltares. Remote Sensing, 15 (6), p. 1654. https://doi.org/10.3390/rs15061654

Abstract
In recent years, marine plastic pollution has seen increased coverage in the public interest and research due to a greater understanding of the scale and impact of plastic pollution within the marine environment. Considering the hazard that plastic waste poses on the environment, marine life, and on humans, remote-sensing techniques could provide timely information on their detection and dynamics. The remote sensing of marine plastic is a relatively new field and research into the capabilities of radar for detecting and monitoring marine plastic pollution is generally limited, with several interactions and mechanisms being largely unknown. Here, we exploit the use of a C- and X-band radar to understand the capabilities of monitoring marine plastics. Our results show that backscattering differences in the C- and X-band between the reference water (called here as “clean”) and the test water filled with plastic can be detected in some conditions (based on statistical analysis). Overall, the results indicate that the X-band frequency performs significantly better than the C-band frequency, with X-band detecting significant differences in backscattering in 48/68 test cases compared with C-band detecting differences in 20/67 test cases. We also find that the difference in backscattering is dependent on the size and shape of the plastic object, as well as the wave conditions which the plastic is moving on. This study provides new insights on the radar capabilities for detecting marine plastic litter and new information which can be used in the planning of future missions and studies on the remote sensing of marine plastic pollution.

Keywords
General Earth and Planetary Sciences

Journal
Remote Sensing: Volume 15, Issue 6

StatusPublished
FundersEuropean Space Agency
Publication date online31/03/2023
Date accepted by journal16/03/2023
URLhttp://hdl.handle.net/1893/35480
PublisherMDPI AG

People (6)

People

Dr Peter Hunter

Dr Peter Hunter

SIEC/Forth-ERA Science Director, Scotland's International Environment Centre

Dr Armando Marino

Dr Armando Marino

Associate Professor, Biological and Environmental Sciences

Mr Morgan Simpson

Mr Morgan Simpson

Research Assistant, Biological and Environmental Sciences

Dr Evangelos Spyrakos

Dr Evangelos Spyrakos

Associate Professor, Biological and Environmental Sciences

Professor Trevor Telfer

Professor Trevor Telfer

Professor, Institute of Aquaculture

Professor Andrew Tyler

Professor Andrew Tyler

Scotland Hydro Nation Chair, Biological and Environmental Sciences