Incorporación de los efectos de erupciones volcánicas en modelos estocásticos de precipitación en cuencas hidrográficas. Caso del volcán Tungurahua en la microcuenca del río Ambato
[EN] Summary Water is a determining factor in all aspects of human life and the balance and integrity of the natural environment. Water is a vital natural resource and it is imperative to deepen research that allow us to understand what factors could affect its availability on the planet. In particu...
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| Tipo de recurso: | tesis doctoral |
| Fecha de publicación: | 2016 |
| 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:10251/64064 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/64064 |
| Access Level: | acceso abierto |
| Palabra clave: | Erupción volcánica Modelo estocástico de precipitación Concentración SO2 Volcán Tungurahua INGENIERIA HIDRAULICA |
| Sumario: | [EN] Summary Water is a determining factor in all aspects of human life and the balance and integrity of the natural environment. Water is a vital natural resource and it is imperative to deepen research that allow us to understand what factors could affect its availability on the planet. In particular, we considered through this thesis, identify the direct relationship between the effects of a volcanic eruption process and behavior of rainfall in a watershed and, from these data, construct a stochastic time series methodology precipitation to incorporate the variable effects of the volcanic eruption. Historical references and specialized studies raise preliminary findings on the effects of large volcanic eruptions and even global impacts at regional level as a result of the expulsion of large ash plumes on the atmosphere that achieve change not only the temperature but also cause variations in the precipitation patterns. Locally, however, there are few studies that suggest the relationship between these two natural phenomena. Cordillera of the Andes has a great influence of Ecuador's climate and geographic diversity, as well as the the availability of the water resources. Within the Andes, several volcanoes that exist and have constant activity, has been affecting people lives health and causing significant effects on the environment and weather conditions of the territory. As a specific case, Tungurahua volcano restarted its volcanic activity in 1993 after 80 years of rest. This natural phenomenon marks a milestone in the field of volcanology and geology in Ecuador for the information and discoveries achieved that have been used for evacuation alerts of the citizens living near the regions. The continuous process of eruption of Tungurahua volcano reflects a good case-scenario for this research to assess the relationship between precipitation and the effects of volcanic activity levels. The constant activity allowed the ability to monitor Tungurahua over more than fifteen years, and also to provide enough data to perform statistical analysis of both rainfall series and sulfur dioxide SO2 concentration levels series. This research consists of six chapters describing the two natural phenomena, precipitation and volcanic eruption. A method is proposed to assess a relationship between variable volcanic eruption stochastic models from a precipitation time series. |
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