Ocean Science
Ocean Science
OS
Articles | Volume 21, issue 4
Articles | Volume 21, issue 4
https://doi.org/10.5194/os-21-1369-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-21-1369-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 4
Research article
 | 
15 Jul 2025
Research article |  | 15 Jul 2025

Monsoonal influence on floating marine litter pathways in the Bay of Bengal

Lianne C. Harrison, Jennifer A. Graham, Piyali Chowdhury, Tiago A. M. Silva, Danja P. Hoehn, Alakes Samanta, Kunal Chakraborty, Sudheer Joseph, T. M. Balakrishnan Nair, and T. Srinivasa Kumar

Supplement

https://doi.org/10.5194/os-21-1369-2025-supplement

Data sets

Particle tracking model output simulating floating marine litter in the Bay of Bengal Lianne C. Harrison et al. https://doi.org/10.14466/CefasDataHub.160

Global Drifter Program quality-controlled 6 h interpolated data from ocean surface drifting buoys. June 2018-September 2019 Rick Lumpkin and Luca Centurioni https://doi.org/10.25921/7ntx-z961

Model code and software

CefasRepRes/BayOfBengal_ParticleTracking_paper: Ocean Science paper resubmission accompaniment Lianne Harrison https://doi.org/10.5281/zenodo.15230045

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Short summary
Particle tracking models allow us to explore pathways of floating marine litter, source to sink, between countries. This study shows the influence of seasonality for dispersal in the Bay of Bengal and how ocean current forcing impacts model performance. Most litter beached on the country of origin, but there was a greater spread shown between countries during the post-monsoon period (Oct–Jan). Results will inform future model developments as well as management of marine litter in the region.
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