Research on Sediment Distribution and Management in South-West Region of Bangladesh

Researche Funding: Government of Bangladesh (GoB)

Faculty Researcher: Prof Dr Anisul Haque, Prof Dr Md. Munsur Rahman, Prof Dr Mashfiqus Salehin

Collaboration: Lead: Water Resources Planning Organisation (WARPO); Affiliate: Institute of Water and Flood Management (IWFM), BUET

Duration: July, 2019 - December, 2020

Bangladesh delta is a part of the Ganges-Brahmaputra-Meghna Basins system. According to the long-term sediment budget for the delta, one third of the sediment carried by the rivers is deposited on the flood plain and tidal plain, and one third is trapped in the sub-aqueous delta, causing vertical accretion and lateral progression of the sub-aqueous delta. These sediment budgets are changing with time because of the impact of both the climatic and anthropogenic interventions. Sedimentation problem in this region aggravated by the construction of costal polders that de-linked the floodplains from the peripheral rivers. By considering the above facts, overall objective of the study is to develop a sustainable sediment management strategy that will divert sediments from sediment-excess region to sediment-starve region. This will reduce water-logging problem, offset impact of sea level rise and accelerate land reclamation.