Flood Inundation Hazard Modelling Using CCHE2D Hydrodynamic Model and Geospatial Data for Embankment Breaching Scenario of Brahmaputra River in Assam

  • Sagar S. SalunkheEmail author
  • S. S. Rao
  • I. Prabu
  • V. Raghu Venkataraman
  • Y. V. N. Krishna Murthy
  • Chintamani Sadolikar
  • Supriya Deshpande
Research Article


In many flood prone river basins, water inundates vast areas of land causing loss of life and heavy damage to the dwellings in flood plains. It also impacts agricultural productivity and cause severe economic losses. One of the reasons for flooding in plains of Brahmaputra valley in north east India is embankment breaching. In this study, an attempt was made for probabilistic flood hazard modelling of July 2008 embankment breaching scenario of Brahmaputra river at Matmara village, Lakhimpur district in Assam, based on various numerical simulations with the help of Center for Computational Hydro science and Engineering hydro-dynamic model. The methodology was applied over 2146 km2 flood prone area. Data inputs in the study include: Advanced Spaceborne Thermal Emission and Reflection Radiometer Digital Elevation Model, Pre-flood and Post flood satellite images of Landsat Enhanced Thematic Mapper Plus (ETM+) and other ancillary data. The simulation was carried out for various discharge levels based on flood frequency analysis. The result of the model includes spatial variations of inundated water depth and water velocity. The results were validated by comparing it with the post-flood ETM+ data and flood situation status report of National Informatics Centre. Flood hazard maps were prepared by carrying out a spatial analysis of simulated inundation depth and velocity. It was seen that the majority of flooded area fell into the very high and high categories. This information can be used to plan appropriate cost effective flood mitigation schemes.


CCHE2D Hydrodynamic model Flood inundation hazard modelling Brahmaputra river Embankment breaching 



The authors express their gratitude to Dr. Hemant Darbari, Director General (in-charge) and Executive Director, C-DAC, Pune and Shri Uday Raj, CGM, RC, NRSC for providing support and facility to carry out the work. We are thankful to Mr. Sandeep Kumar Srivastava, Ms. Asima Mishra, Dr. Yogesh Kumar Singh and Ms. Upasana Dutta, staff members of Emerging Solutions and e-Governance Group, C-DAC, Pune for providing guidance and support to carry out the work. We are also thankful to Dr. Subashisa Dutta, Professor and Head, Department of Civil Engineering, Indian Institute of Technology, Guwahati for sharing useful information and ancillary data used in the study. The authors are also grateful to the anonymous reviewers for their constructive comments and suggestions which improved the quality of the manuscript.

Supplementary material

12524_2018_749_MOESM1_ESM.docx (3.5 mb)
Supplementary material 1 (DOCX 3585 kb)


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Copyright information

© Indian Society of Remote Sensing 2018

Authors and Affiliations

  • Sagar S. Salunkhe
    • 1
    Email author
  • S. S. Rao
    • 1
  • I. Prabu
    • 2
  • V. Raghu Venkataraman
    • 3
  • Y. V. N. Krishna Murthy
    • 3
  • Chintamani Sadolikar
    • 4
  • Supriya Deshpande
    • 5
  1. 1.Regional Remote Sensing Centre-West, NRSC, ISROJodhpurIndia
  2. 2.Emerging Solutions and e-Governance GroupC-DACPuneIndia
  3. 3.National Remote Sensing Centre, ISROBalanagarIndia
  4. 4.TomTom India Private LimitedPuneIndia
  5. 5.S. N. Joshi Consultants Private LimitedPuneIndia

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