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INTERNATIONAL JOURNAL OF ENGINEERING DEVELOPMENT AND RESEARCH
(International Peer Reviewed,Refereed, Indexed, Citation Open Access Journal)
ISSN: 2321-9939 | ESTD Year: 2013

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Paper Title
An approach to predict the yearly bank erosion rates of Jamuna River: An application of the correlation of bank shear stress and river discharge
Authors
  Mahmood Khan,  Dr. Mohammad Mostafa Ali

Abstract
Hydraulic erosion of river bank is one of the key factors controlling the bank erosion rates. In this study hydraulic bank erosion rate has been quantified with the help of analytical formulas and 2-dimensional numerical model. A 2-dimensional morphological model was developed for the selected reach of Jamuna River using the modeling platform MIKE 21C. After calibrating the erosion trends of Jamuna River for 2012, the model was simulated for hydrological events with return periods 2.33 year and 100 year to estimate the erosion rates for those events. The erosion rates were used to calculate bank shear stress. Since primary discharge data was not available at different reaches model simulated discharge for different hydrological events were utilized to correlate it with bank shear stress. This correlation paved a way to estimate bank shear stresses from the river discharges at respective reaches for the hydrological event of 2013, which in turn offered an opportunity to obtain erosion rate for the same event. The erosion rates thus obtained was compared to that revealed by satellite imagery. The outcome of the comparison represents that the erosion rates calculated by the aforementioned approach was very close to the observed ones.

Keywords- Hydraulic erosion, numerical model, bank shear stress
Publication Details
Unique Identification Number - IJEDR1602207
Page Number(s) - 1180-1185
Pubished in - Volume 4 | Issue 2 | May 2016
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
  Mahmood Khan,  Dr. Mohammad Mostafa Ali,   "An approach to predict the yearly bank erosion rates of Jamuna River: An application of the correlation of bank shear stress and river discharge", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.4, Issue 2, pp.1180-1185, May 2016, Available at :http://www.ijedr.org/papers/IJEDR1602207.pdf
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