Ajuste de las distribuciones de probabilidad a la precipitación mensual en el estado de Pernambuco – Brasil

Autores/as

DOI:

https://doi.org/10.33448/rsd-v9i11.9894

Palabras clave:

Precipitación mensual; Pernambuco; Distribuciones de probabilidad.

Resumen

Este estudio tuvo como objetivo identificar los modelos de distribución de probabilidad que mejor se ajustan a los datos de precipitación mensual para el estado de Pernambuco - Brasil. Se analizaron los ajustes de seis distribuciones de probabilidad de 2 parámetros: gamma (GAM), log normal (LNORM), Weibull (WEI), Pareto generalizado (PG), Gumbel (GUM) y normal (NORM) para los datos de precipitación mensual. 40 estaciones pluviométricas distribuidas en el estado de Pernambuco, en el período de 1988 - 2017 (30 años). Se utilizó el método de máxima verosimilitud (ML) para estimar los parámetros del modelo y la selección del modelo se basó en una modificación del estadístico de Shapiro-Wilk. Los resultados mostraron que las distribuciones de 2 parámetros son lo suficientemente flexibles para describir los datos de precipitación mensual para el estado de Pernambuco y que los modelos log normal, gamma, Weibull y PG se ajustan mejor a los datos. Los modelos Gumbel y normal rara vez se ajustan a los datos independientemente del mes analizado.

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Publicado

22/11/2020

Cómo citar

XIMENES, P. de S. M. P. .; SILVA, A. S. A. da; ASHKAR, F.; STOSIC, T. Ajuste de las distribuciones de probabilidad a la precipitación mensual en el estado de Pernambuco – Brasil. Research, Society and Development, [S. l.], v. 9, n. 11, p. e4869119894, 2020. DOI: 10.33448/rsd-v9i11.9894. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/9894. Acesso em: 23 dic. 2024.

Número

Sección

Ciencias Exactas y de la Tierra