Flood Frequency Modeling Using Gumbel’s and Powell’s Method for Dudhkumar River
Journal of Water Resources and Ocean Science
Volume 2, Issue 2, April 2013, Pages: 25-28
Received: Jun. 6, 2013; Published: Jun. 30, 2013
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Authors
Md. Abdullah Asad, Dept. of Civil Engineering, Stamford University Bangladesh, Dhaka 1217, Bangladesh
Mohammad Ahmeduzzaman, Dept. of Civil Engineering, Stamford University Bangladesh, Dhaka 1217, Bangladesh
Shantanu Kar, Dept. of Civil Engineering, Stamford University Bangladesh, Dhaka 1217, Bangladesh
Md. Ashrafuzzaman Khan, Dept. of Civil Engineering, Stamford University Bangladesh, Dhaka 1217, Bangladesh
Md. Nobinur Rahman, Dept. of Civil Engineering, Rajshahi University of Engineering & Technology, Rajshahi 6204, Bangladesh
Samiul Islam, Office Engineer, BETS Consulting Services Ltd., Dhaka, Bangladesh
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Abstract
The results of a study on an international river Dudhkumar (shared by Bhutan, India and Bangladesh) analyzing flood frequency of 14 years using Gumbel and Powell distribution have been presented in this paper. Flash flood occurrence over recent years had washed away fields making vulnerable life safety. It was assumed that, Dudhkmar flood flows obey the Gumbel and Powell distribution. The scale and shape parameters of the distribution were estimated using method of moments. . A Chi-square test results (p =1.000) between observed and predicted flood flows which is considered to be not statistically significant by the conventional criteria. Due to goodness of fit of the Gumbel and Powell distribution, it was assumed to be appropriate for modeling frequency of Dudhkumar River floods. However, the magnitudes of the 100, 200 and 1000 year floods were significantly differed in the two mentioned methods.
Keywords
Dudhkumar River, Flood Frequency Gumbel and Powell Distribution, Recurrence Interval
To cite this article
Md. Abdullah Asad, Mohammad Ahmeduzzaman, Shantanu Kar, Md. Ashrafuzzaman Khan, Md. Nobinur Rahman, Samiul Islam, Flood Frequency Modeling Using Gumbel’s and Powell’s Method for Dudhkumar River, Journal of Water Resources and Ocean Science. Vol. 2, No. 2, 2013, pp. 25-28. doi: 10.11648/j.wros.20130202.13
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