alexa Two-Dimensional Hydrodynamic Modelling of Koshi River and Prediction of Inundation Parameters | OMICS International| Abstract
ISSN: 2157-7587

Hydrology: Current Research
Open Access

Like us on:

Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.
  • Research Article   
  • Hydrol Current Res 2018, Vol 9(2): 298
  • DOI: 10.4172/2157-7587.1000298

Two-Dimensional Hydrodynamic Modelling of Koshi River and Prediction of Inundation Parameters

Mukesh Raj Kafle* and Narendra Man Shakya
Department of Civil Engineering, Institute of Engineering, , Pulchowk Campus, Nepal
*Corresponding Author : Mukesh Raj Kafle, PhD Scholar, Department of Civil Engineering, Institute of Engineering, Pulchowk Campus, Nepal, Tel: 9779851041278, Email: [email protected]

Received Date: May 08, 2018 / Accepted Date: May 28, 2018 / Published Date: Jun 05, 2018

Abstract

This paper presents the results of modelling study of Koshi River. The modelling approach is based on twodimensional hydrodynamic model. The simulation is carried out with model software Nays 2DH. The study analyses the inundation parameters, hazard assessment criteria, flood inundation extent delineation and identification of hazardous areas in different discharge scenarios of 25, 50 and 100 years return periods flow. Based on goodnessof- fit tests and fitting parameters, generalized extreme event (GEV) distribution method is adopted for flood frequency analysis. The model is calibrated with measured water surface elevations and simulation results. The root means square errors (RMSE) and correlation R2 between measured values and simulation results are 0.95 m and 0.98 respectively. The study results conclude that within the stretch of around 50 km from Chatara to Koshi barrage the flood will not overtop embankments and left overbank is under low danger zone. However, islands within the embankments namely Shukrabare, Rajabas, Khairatol, Shivchowk and Galphadiya are vulnerable to inundation. The modelling approach proposed in this study is an attractive option for modelling exceptional flood events when limited data and resources are available.

Keywords: Hydrodynamic model; Return periods; Inundation; Flood prediction; Simulation; Two-dimensional

Citation: Kafle MR, Shakya NM (2018) Two-Dimensional Hydrodynamic Modelling of Koshi River and Prediction of Inundation Parameters. Hydrol Current Res 9:298. Doi: 10.4172/2157-7587.1000298

Copyright: © 2018 Kafle MR, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Select your language of interest to view the total content in your interested language

Post Your Comment Citation
Share This Article
Article Usage
  • Total views: 1364
  • [From(publication date): 0-2018 - Nov 21, 2019]
  • Breakdown by view type
  • HTML page views: 1212
  • PDF downloads: 152
Top