Development of Radiometric Methods and modelling for measurement of sediment transport in coastal systems and rivers

The Coordinated Research Project (CRP) on Development of Radiometric Methods and Modelling for Measurement of Sediment Transport in Coastal Systems and Rivers has significantly advanced the application of nuclear techniques in sediment dynamics assessment. The project strengthened member states’ technical capacity to use natural radionuclides and numerical models to quantify sediment dynamics, supporting sustainable management of riverine and coastal environments.
Key achievements include:
-Development and application of local natural radionuclides tracers for the measurement of sediment transport rates, pathways, and depositional patterns under real environmental conditions.
-Design and deployment of gamma detection systems and data acquisition software for in situ measurements, improving the spatial and temporal resolution of sediment transport studies.
-Integration of modelling tools with experimental data for simulation and prediction of sediment movement, providing a scientific basis for erosion control, dredging optimization, and coastal protection strategies.
-Capacity building and human resource development through coordinated field campaigns, training and postgraduate research (PhD and master’s theses-6), resulting in a network of experts across participating Member States.
-Scientific dissemination, with results published in peer-reviewed journals (40 publications) and conference proceedings (50), contributing to global knowledge on sediment transport processes.

The project has generated substantial impact by advancing both the scientific understanding and practical management of sediment transport in coastal and riverine environments. Through the development and validation of radiometric tracer techniques, gamma sensor systems, and modelling tools, the project has enabled Member States to obtain more accurate, high-resolution measurements of sediment movement, deposition rates, and transport pathways—data that are essential for effective coastal protection, erosion control, dredging optimisation, and river management.

A major impact lies in the strengthened technical capacity across participating institutions. The project facilitated hands-on fieldwork, coordinated experiments, collaborative data analysis, and training that resulted in new expertise, postgraduate research outputs (PhD and master’s theses), and peer-reviewed publications. These outcomes have expanded the scientific capabilities of Member States and created a network of specialists capable of applying radiometric methods to real-world problems.

The project has also delivered operational tools—including sensor prototypes, data acquisition software, analytical models, and standardized workflows—that can now be adapted and used by national agencies for environmental monitoring. This provides a lasting benefit beyond the duration of the CRP.

Importantly, the project’s results have informed evidence-based decision-making, supporting actions such as selecting dredging locations, designing erosion mitigation strategies, and assessing the effectiveness of coastal infrastructure. In some Member States, the data generated have already been used to guide the management of vulnerable coastal areas and sediment-impacted rivers.

Finally, the project has promoted regional and international collaboration, strengthened interdisciplinary research partnerships, and laid the foundation for future projects and technical cooperation activities in environmental radiometric applications.