Flood Hazard Mapping of the Floodplain of the Jamuna River

Document Type : Original Article


1 Lecturer, Department of Civil Engineering, PCIU, Chattogram, Bangladesh

2 Lecturer, Department of Water Resources Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka-1000, Bangladesh


Bangladesh is located in the deltaic plain. It is very vulnerable to floods. Flood causes enormous losses to crops, lives, settlements and others. Jamuna river is prone to monsoon floods and is located in the North-central part of Bangladesh. Flood Hazard Mapping is a cost-effective and non-structural measure to mitigate floods. The study area is about 75 km. Flood hazard maps were generated using the RIVERFLOW2D model in conjunction with ArcMap. Calibration and validation were done for the years 2014 and 2017. Then steady simulation was done for 2, 25 and 100-year return periods and inundation areas were found at 40, 55 and 58 km^2 respectively. The flood hazard maps were generated based on depth, velocity and the product of maximum velocity and depth. Then these flood hazard maps were superimposed on different land uses such as crops, settlements & others for the assessment of the flood hazard areas. These hazard maps for different land use will be useful for future planning and management to mitigate floods.


  • To set up a 2D hydraulic model for a Jamuna River and calibration, validation and simulation.
  • To generate flood hazard maps based on depth, velocity and product depth and velocity.
  • To assess the flood hazard areas by superimposing flood hazard maps on different land uses such as crops, settlements & others.


Main Subjects

[1]      Islam SN. Deltaic floodplains development and wetland ecosystems management in the Ganges–Brahmaputra–Meghna Rivers Delta in Bangladesh. Sustain Water Resour Manag 2016;2:237–56. https://doi.org/10.1007/s40899-016-0047-6.
[2]      Younus MAF. Vulnerability and adaptation to climate change in Bangladesh: Processes, assessment and effects. Springer; 2014.
[3]      Rasheed KBS. Bangladesh Resource and Environmental Profile Hardcover 2008.
[4]      Network for Information, Response and Preparedness Activities on Disaster (NIRAPAD). Flood Situation Updated on August 22. 2017 n.d.
[5]      Masood M, Takeuchi K. Assessment of flood hazard, vulnerability and risk of mid-eastern Dhaka using DEM and 1D hydrodynamic model. Nat Hazards 2012;61:757–70. https://doi.org/10.1007/s11069-011-0060-x.
[6]      Tarekegn TH, Haile AT, Rientjes T, Reggiani P, Alkema D. Assessment of an ASTER-generated DEM for 2D hydrodynamic flood modeling. Int J Appl Earth Obs Geoinf 2010;12:457–65. https://doi.org/10.1016/j.jag.2010.05.007.
[7]      Rahman M, Chen N, Islam MM, Mahmud GI, Pourghasemi HR, Alam M, et al. Development of flood hazard map and emergency relief operation system using hydrodynamic modeling and machine learning algorithm. J Clean Prod 2021;311:127594. https://doi.org/10.1016/j.jclepro.2021.127594.
[8]      Rangari VA, Umamahesh NV, Patel AK. Flood-hazard risk classification and mapping for urban catchment under different climate change scenarios: A case study of Hyderabad city. Urban Clim 2021;36:100793. https://doi.org/10.1016/j.uclim.2021.100793.
[9]      Tyrna B, Assmann A, Fritsch K, Johann G. Large-scale high-resolution pluvial flood hazard mapping using the raster-based hydrodynamic two-dimensional model FloodAreaHPC. J Flood Risk Manag 2018;11:S1024–37. https://doi.org/10.1111/jfr3.12287.
[10]     Baky MA Al, Islam M, Paul S. Flood Hazard, Vulnerability and Risk Assessment for Different Land Use Classes Using a Flow Model. Earth Syst Environ 2020;4:225–44. https://doi.org/10.1007/s41748-019-00141-w.
[11]     Vasconcellos SM, Kobiyama M, Dagostin FS, Corseuil CW, Castiglio VS. Flood Hazard Mapping in Alluvial Fans with Computational Modeling. Water Resour Manag 2021;35:1463–78. https://doi.org/10.1007/s11269-021-02794-7.
[12]     Khaing ZM, Zhang K, Sawano H, Shrestha BB, Sayama T, Nakamura K. Flood hazard mapping and assessment in data-scarce Nyaungdon area, Myanmar. PLoS One 2019;14:e0224558. https://doi.org/10.1371/journal.pone.0224558.
[13]     Farooq M, Shafique M, Khattak MS. Flood hazard assessment and mapping of River Swat using HEC-RAS 2D model and high-resolution 12-m TanDEM-X DEM (WorldDEM). Nat Hazards 2019;97:477–92. https://doi.org/10.1007/s11069-019-03638-9.
[14]     Ernst J, Dewals BJ, Detrembleur S, Archambeau P, Erpicum S, Pirotton M. Micro-scale flood risk analysis based on detailed 2D hydraulic modelling and high resolution geographic data. Nat Hazards 2010;55:181–209. https://doi.org/10.1007/s11069-010-9520-y.
[15]     de Kok J-L, Grossmann M. Large-scale assessment of flood risk and the effects of mitigation measures along the Elbe River. Nat Hazards 2010;52:143–66. https://doi.org/10.1007/s11069-009-9363-6.
Volume 5, Issue 1 - Serial Number 17
January 2022
Pages 89-101
  • Receive Date: 29 January 2022
  • Revise Date: 07 July 2022
  • Accept Date: 08 July 2022
  • First Publish Date: 08 July 2022