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DeltaMAR

Integrated ex ante assessment of MAR system performance

Evaluation of the existing pilot sites and the workshop made clear that there is a lack of understanding of the strong variation in permeability, salinity, and trace metal concentration both at regional and local scale. This heterogeneity is presumably a function of regional scale Quarternary depositional processes of North-South interacting fresh-water rivers and saline marine water, and meso/local scale East-West processes creating sandy channel belts and clayey-organic backswamps.

Knowledge concerning the local depositional environment patterns at the scale of the research area is lacking. Furthermore, the effects of recent human settlement and land use (notably pond excavation, shallow groundwater extraction) on groundwater quantity and quality remains understudied. Improved insight on the regional scale of local hydrogeological conditions and socio-economic drivers are needed to determine the potential success of MAR implementation in the Bangladesh saline delta.

Lessons learned from Bangladesh may then be used to provide an outlook to MAR implementation potentials in similar saline deltas worldwide.

This PhD research project is executed by Floris Naus, under the supervision of Prof. Dr. Jasper Griffioen, Dr. Paul Schot, Dr. Koos Groen, and Prof. Dr. Kazi Matin Ahmed