Abstract

ESCALANTE-SANDOVAL, C.A.. Análisis de eficiencia de la distribución Bi-Gumbel. Ing. invest. y tecnol. [online]. 2005, vol.6, n.1, pp.13-17. ISSN 2594-0732.

Most hydrological extreme studies in the past have been analyzed through use of univariate distributions. The large variability of the T-year flood estimates has prompted exploration of joint estimation models, such as the bivariate distribution with extreme value type I marginals, named Bi-Gumbel distribution. To investigate whether the estimates of the quantiles based on bivariate ditribution are better than those on univariate procedures a distribution sampling technique was used. A significant improvement occurs when the parameters are estimated using the bivariate distribution instead of univariate form and such again is more significant in relation to the shorter samples.

Keywords : Multivariate extreme value distribution; Gumbel distribution; maximum like lihood estimates; distribution sampling technique.

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