Articles | Volume 26, issue 4
https://doi.org/10.5194/hess-26-903-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-26-903-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Physical controls and a priori estimation of raising land surface elevation across the southwestern Bangladesh delta using tidal river management
Copernicus Institute of Sustainable Development, Utrecht University, Utrecht 3584 CS, The Netherlands
Paul P. Schot
Copernicus Institute of Sustainable Development, Utrecht University, Utrecht 3584 CS, The Netherlands
Stefan C. Dekker
Copernicus Institute of Sustainable Development, Utrecht University, Utrecht 3584 CS, The Netherlands
Jasper Griffioen
Copernicus Institute of Sustainable Development, Utrecht University, Utrecht 3584 CS, The Netherlands
Geo-modelling Unit, TNO Geological Survey of the Netherlands, Utrecht 3584 CS, The Netherlands
Hans Middelkoop
Department of Physical Geography, Utrecht University, Utrecht 3584
CS, The Netherlands
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Short summary
The potential of sedimentation in the lowest parts of polders (beels) through controlled flooding with dike breach (tidal river management – TRM) to counterbalance relative sea level rise (RSLR) in 234 beels of SW Bangladesh is determined in this study, using 2D models and multiple regression. Lower beels located closer to the sea have the highest potential. Operating TRM only during the monsoon season is sufficient to raise the land surface of most beels by more than 3 times the yearly RSLR.
The potential of sedimentation in the lowest parts of polders (beels) through controlled...