Articles | Volume 18, issue 6
https://doi.org/10.5194/os-18-1703-2022
https://doi.org/10.5194/os-18-1703-2022
Research article
 | 
05 Dec 2022
Research article |  | 05 Dec 2022

Modelling floating riverine litter in the south-eastern Bay of Biscay: a regional distribution from a seasonal perspective

Irene Ruiz, Anna Rubio, Ana J. Abascal, and Oihane C. Basurko

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Cited articles

Abascal, A., Castanedo, S., Gutierrez, A. D., Comerma, E., Medina, R., and Losada, I. J.: Teseo, an operational system for simulating oil spills trajectories and fate processes, Proc. Int. Offshore Polar Eng. Conf., 1751–1758, ISBN 978-1-880653-68-5, 2007. 
Abascal, A. J., Castanedo, S., Mendez, F. J., Medina, R., and Losada, I. J.: Calibration of a Lagrangian Transport Model Using Drifting Buoys Deployed during the Prestige Oil Spill, J. Coastal Res., 11, 80–90, 2009. 
Abascal, A. J., Castanedo, S., Fernández, V., and Medina, R.: Backtracking drifting objects using surface currents from high-frequency (HF) radar technology, Ocean Dynam., 62, 1073–1089, https://doi.org/10.1007/s10236-012-0546-4, 2012. 
Abascal, A. J., Castanedo, S., Núñez, P., Mellor, A., Clements, A., Pérez, B., Cárdenas, M., Chiri, H., and Medina, R.: A high-resolution operational forecast system for oil spill response in Belfast Lough, Mar. Pollut. Bull., 114, 302–314, https://doi.org/10.1016/j.marpolbul.2016.09.042, 2017a. 
Abascal, A. J., Sanchez, J., Chiri, H., Ferrer, M. I., Cárdenas, M., Gallego, A., Castanedo, S., Medina, R., Alonso-Martirena, A., Berx, B., Turrell, W. R., and Hughes, S. L.: Operational oil spill trajectory modelling using HF radar currents: A northwest European continental shelf case study, Mar. Pollut. Bull., 119, 336–350, https://doi.org/10.1016/j.marpolbul.2017.04.010, 2017b. 
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Short summary
The south-eastern Bay of Biscay is an accumulation zone for marine litter. Yet, the behaviour of the riverine litter fraction reaching the sea is poorly understood. We resolve this by studying litter buoyancy and transport, based on high-frequency radar observations and Lagrangian simulations. We show large seasonal and regional differences between items' behaviour, particularly in summer when highly buoyant litter beaches faster and Gipuzkoa and Pyrénées-Atlantiques regions are mostly affected.