Posibilidades de implementación un sistema de indicadores para la gestión de la sequía en la Demarcación Hidrográfica de Manabí - Ecuador
[EN] In Ecuador, Manabi is one of the provinces most affected by droughts. The UN confirms this fact, and also considers it as one of the provinces most affected by desertification. Furthermore, on the basis of the intensity of water scarcity, it was established that this is an area potentially at r...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | español |
| OAI Identifier: | oai:riunet.upv.es:10251/59791 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/59791 |
| Access Level: | acceso abierto |
| Palabra clave: | Sequía Índices de sequía Eventos climáticos ENOS Droguht Drought Index Climate events ENSO INGENIERIA HIDRAULICA Máster Universitario en Ingeniería Hidráulica y Medio Ambiente-Màster Universitari en Enginyeria Hidràulica i Medi Ambient |
| Sumario: | [EN] In Ecuador, Manabi is one of the provinces most affected by droughts. The UN confirms this fact, and also considers it as one of the provinces most affected by desertification. Furthermore, on the basis of the intensity of water scarcity, it was established that this is an area potentially at risk of such an event. The need to predict droughts is essential to avoid serious consequences. In this respect, drought managers have a series of tools (e.g. drought indices) to constantly monitor event conditions and anticipate these occurences. Three drought indices have been selected in this study: the Standardized Precipitation Index, SPI; the Palmer Drought Severity Index, PDSI; and the Index of State, I.e., developed by McKee et al. 1983, Palmer 1965 and CHJ 2000, respectively. These indices were applied at the level of the river basin district of Manabi, which was divided into three zones: North Zone, Central Zone and South Zone. The analysis of the indices encompassed the period between 1964 - 2012 (48 years). The results obtained from the application of the SPI were validated with the written records from the local press addressing the issue of droughts in the study area,.This allowed us to establish the relationship between the calculated and the observed values. The SPI exposed the drought events occurred in the district. Similarly, I.e. index shows that the volumes of the reservoirs do not reach their minimum levels. Finally, the results of the Standardized Precipitation Index were compared with the results of the climate indices; Southern Oscillation Index, SOI; and Sea Surface Temperature, SST; to determine the influence of El Niño - Southern Oscillation, ENSO climatic events; with the manifestation of drought at the level of the river basin district of Manabi, and was established the climate index SST as a good indicator of drought in the district. |
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