Estimation of dry season water demand and availability for the Ganges delta within Bangladesh up to the year 2050

The lifeline of the Ganges delta area within Bangladesh (GDB) with present and future socio-economic setting is the water availability in the region. A systematic and detailed methodology is illustrated for estimation of present and future water demands for different sectors during dry season in the GDB. The findings of the study indicate that the water demand in the GDB may be significantly higher in years 2025 and 2050, compared to the present demand, and a major proportion of this demand would need to be met from the Ganges river diversion possibly through construction of a barrage within Bangladesh.