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ISSN:2394-3661 | Crossref DOI | SJIF: 5.138 | PIF: 3.854

International Journal of Engineering and Applied Sciences

(An ISO 9001:2008 Certified Online and Print Journal)

Extreme rainfall estimation on Bia watershed River in south-eastern of Côte d’Ivoire: theoretical and practical approaches application

( Volume 6 Issue 2,February 2019 ) OPEN ACCESS

KOUASSI Kan Martin, YAO Koffi Blaise, MELEDJE Ndiaye Hermann, KOUASSI Kouakou Lazare, SORO Nagnin, BIEMI Jean


This study objective is to evaluate Gumbel's law exclusive use relative error of the in favor of theoretical and practical laws in extreme rainfall quantile estimation. To do this, an extreme rainfall database from 1941 to 2000 from the Bianouan, Agnibilékro, Adiaké and Ayamé rainfall stations on the Bia River watershed was established. The results analyzes show that the Fréchet and normal Log 2 laws are respectively the ideal laws of the theoretical and practical approach. In addition, a Gumbel's law exclusive use underestimates extreme rainfall quantiles compared to two approaches. Thus, Gumbel's law use could be justified by an economic or operational issue insofar as it understates the structures while minimizing the cost.



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