Paper Title
Estimation of peak flood discharge using rational method and Manning equation in Junbedia jorh microwatershed, Bankura district, West Bengal, India
Article Identifiers
Authors
Dr. Subrata Pan , Sri Krishnagopal Halder
Keywords
Hydraulic Radius, IMD 1/3 Rule, Junbedia Jorh, Manning Equation, Peak Flood Discharge, Rational Method, Runoff Coefficient, Time of Concentration
Abstract
The present paper deals with the calculation of peak flood discharge by two important hydrological models- ‘Rational Method’ and Manning Equation’ in Junbedia Jorh microwatershed near Bankura town of West Bengal. The study applied ‘IMD 1/3rd Rule’ for calculation of short duration rainfall from daily rainfall data and ‘hydraulic radius’ for calculation of Manning value based on data derived from the field by Auto Level and GPS survey. The result shows that the peak discharge of the jorh during its record rainfall of September, 2021 was 69 m3s-1 rendering the lower part of the catchment more than 12 hours of waterlogging. The Manning equation estimated the discharge at 45 m3s-1 with consequent nineteen hours of waterlogging. It is found that the results so obtained by model estimations have fairly matched with the questionnaire survey results in almost 240 households in the most flood affected area of the catchment.
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How To Cite (APA)
Dr. Subrata Pan & Sri Krishnagopal Halder (October-2022). Estimation of peak flood discharge using rational method and Manning equation in Junbedia jorh microwatershed, Bankura district, West Bengal, India. INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT, 7(10), 864-881. https://ijnrd.org/papers/IJNRD2210106.pdf
Issue
Volume 7 Issue 10, October-2022
Pages : 864-881
Other Publication Details
Paper Reg. ID: IJNRD_183385
Published Paper Id: IJNRD2210106
Downloads: 000121995
Research Area: Water Resourses & ManagementÂ
Country: Bankura, West Bengal, India
Published Paper PDF: https://ijnrd.org/papers/IJNRD2210106.pdf
Published Paper URL: https://ijnrd.org/viewpaperforall?paper=IJNRD2210106
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Journal Name: INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT(IJNRD)
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Current Issue: Volume 10 | Issue 10 | October 2025
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