Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 19, issue 2
Articles | Volume 19, issue 2
https://doi.org/10.5194/gmd-19-827-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-19-827-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 2
Model evaluation paper
 | 
26 Jan 2026
Model evaluation paper |  | 26 Jan 2026

Modeling Indian Ocean circulation to study marine debris dispersion: insights into high-resolution and wave forcing effects with Symphonie 3.6.6

Lisa Weiss, Marine Herrmann, Patrick Marsaleix, Matthieu Bompoil, and Christophe Maes

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Short summary
We developed a high-resolution ocean model to study marine debris dispersion across the Indian Ocean, from coastal scales to the open sea. Results show that model resolution and wave forcing, through both the Stokes-Coriolis force and Stokes drift, play a key role in shaping ocean circulation, seasonal energy budgets, and floating debris trajectories. High-resolution currents and wave forcing, especially during monsoons, increase the anisotropic spread and travel distances of drifting material.
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