Data collected in February 2022 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

Data collected in October 2021 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

Data collected in December 2023 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

Data collected in May 2023 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

Data collected in November 2022 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

Data collected in May 2023 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

Data collected in May 2022 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

Data collected in December 2023 by CNR- ISMAR VE within the MAELSTROM project with the aim to map marine litter on the seafloor

Digital Elevation Model (DEM) of the Ave estuary in Portugal collected by Deltares in the framework of the MAELSTROM Project

A bubble Barrier that removes litter from rivers is being applied in the Ave estuary (Portugal) in the framework of the MAELSTROM Project. In order to identify the location where the technology could possibly best be applied and to assess the impact of the litter removal on marine life, MAELSTROM makes use of numerical models. Facing the limited field data and absence of available models, we carried out field campaigns, set-up a hydrological model for the Ave river basin and set-up a hydrodynamic model for the estuarine region. The hydrodynamic numerical model for the Ave estuary was implemented using D-Flow Flexible Mesh (D-Flow FM), which is the hydrodynamic module of the Delft3D Flexible Mesh Suite developed by Deltares (for more information see the project deliverable D2.2 Numerical modelling and field campaigns to support litter removal at the demo sites).