Estimación y análisis de curvas envolventes de caudales específicos máximos para el Ecuador : Estimación y análisis de curvas envolventes para las cuencas hidrológicas que desembocan hacia el Océano Pacífico.

Abstract

The study focuses on addressing the critical need to anticipate and mitigate the impacts of adverse hydrological events, a task tackled through a thorough analysis of maximum flows provided by the INAMHI. This analysis is underscored by its relevance in understanding hydrological behavior, emphasizing the importance of estimating rating curves as a fundamental tool. However, this task is conditioned by the need for a sufficient amount of data to ensure precise estimation. A crucial part of this process involves identifying outliers and generating local envelope curves specifically designed for basins that drain into the Pacific Ocean. These curves aim to assess the consistency of the recorded flows and provide a reference for future analyses. Methodologically, the study is based on the application of a series of adjustments of commonly used distributions, such as Gumbel, Log-Normal, Pearson III, and Log Pearson III, to the data of annual maximum flows collected from various study stations. The selection of the most appropriate fit is carried out through rigorous goodness-of-fit tests, including both the Chi-Square and KolmogorovSmirnov tests. The results obtained reveal significant relationships between the physical properties of the basins and the recorded maximum flows, highlighting the inherent complexity of the hydrological system and the need to consider multiple variables in the analysis for a comprehensive and accurate understanding.