FLOOD FREQUENCY ANALYSIS OF OSSE RIVER WITH A THRESHOLD VALUE USING EXTREME VALUE TYPE 1 DISTRIBUTION

Authors

  • I. U. Akata Department of Statistics, University of Benin, Benin City, Nigeria. Author
  • A. Iduseri Department of Statistics, University of Benin, Benin City, Nigeria. Author
  • J.E. Osemwenkhae Department of Statistics, University of Benin, Benin City, Nigeria. Author

Keywords:

Probability, Flood Frequency Analysis, Recurrent Interval, Method of Moment, Extreme Value Type1

Abstract

This paper analyzes flood frequency using discharge data from Osse River with flow measurements carried out at-site station Iguoriakhi for 20 years’ period (1994-2013). Some basic statistics and goodness of fit test of the datasets were examined. The
recurrent interval T  and the probabilities for different years return period were shown. Using the method of moment for parameters estimates and with a threshold value, the extreme value type1 distribution was used to predict the future maximum
flood peak starting from 1.2years up to 50years. 

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Published

2022-12-01

How to Cite

FLOOD FREQUENCY ANALYSIS OF OSSE RIVER WITH A THRESHOLD VALUE USING EXTREME VALUE TYPE 1 DISTRIBUTION. (2022). The Transactions of the Nigerian Association of Mathematical Physics, 18, 69 –76. https://nampjournals.org.ng/index.php/tnamp/article/view/161

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