Especialización en Sistemas de Información Geográfica

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Zonificación de la amenaza por inundación de la microcuenca San Pedro en el Departamento del Valle del Cauca - Colombia
(Universidad Santiago de Cali, 2024-08-10) Gomez Bedoya, Anyerson; Fernández Rico, Gustavo Adolfo; Cabezas Alzate, Diego Fernando
The San Pedro watershed, located in the department of Valle del Cauca, has experienced disastrous events related to flooding approximately once per decade. However, the authorities responsible for risk management do not have basic studies that describe the behavior of this threat. Therefore, the general objective of this study is to zone the flood threat in the watershed. The study was developed in four phases: morphometric characterization of the basin; calculation of the probabilities of maximum rainfall; measurement of the depths and speeds that the flood can reach; and finally, classification of the threat into high, medium and low levels. The results indicate that the maximum flood height can reach one and a half floors of a home, with low to medium flow speeds, affecting a total area of 1,697.74 hectares. The competent entities are recommended to carry out detailed studies in the municipal capital and in the Todos Los Santos population center, especially in relation to the San Pedro and Totucal streams, to define developable areas, design mitigation works and establish ecological conservation processes.