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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Mudflow Modeling in the Copiapo Basin, Chile

Valdes-Pineda, Rodrigo, Valdes, Juan B., Garcia-Chevesich, Pablo 28 April 2017 (has links)
Extreme precipitation events that occurred between March 24 and March 26 of 2015 in the region of the Atacama Desert (26-29 degrees S) left around 30000 victims, being one of the biggest events over the past 50 years, with total a cost of reconstruction of about 1.5 billion dollars. The mudflows which increased during the flashflood inundated much of the city of Copiapo and Tierra Amarilla. This manuscript aims to model the mudflow of March 2015 in the Rio Copiapo, specifically in the towns of Copiapo and Tierra Amarilla. The modeling process is performed using the Rapid Mass Movement Simulation Model (RAMMS) that allows modeling the dynamics of the mudflow in two dimensions, only using the topographic features of the modeling domain. Calibration of the model was carried out successfully using data from inundation heights captured around the city after the 2015 event. A detailed analysis of the hydrometeorological event is carried out using satellite images obtained from Multi-satellite Precipitation Analysis (TMPA), and pluviometric and hydrographic data available in the Copiapo River basin. The simulation of the flood is reproduced with maps of inundation heights associated with two modeling scenarios. The maximum flood heights are ultimately used for developing risk maps at both sites. According to our results, the RAMMS model is an appropriate tool for modeling mudflow and mapping flood risk to improve hydrological risk management in arid and semiarid basins of Chile.
2

L'Encomienda d'Indiens de Copiapo : un processus de disparition ethnique aux marges du Royaume du Chili, 1544-1806 / The Encomienda of Indians from Copiapo : An ethnic disappearance process at the margins of the Kingdom of Chile, 1544-1806

Cortes Larravide, Enrique Alberto 16 December 2014 (has links)
Ce travail se propose d’étudier l’histoire de l’ethnie des Indiens de Copiapo, groupe situé au Chili, dans la vallée de Copiapo, aux marges méridionales du désert d’Atacama. C’est ainsi que la période abordée (1544-1806) répond au développement-même de ce groupe durant la période coloniale, depuis sa création en tant que groupe d’encomienda jusqu’à sa disparition. En effet, ce groupe apparaît lorsque le gouverneur du Royaume du Chili don Pedro de Valdivia décide d’octroyer en encomienda l’ensemble des habitants de la vallée, qui constituaient jusqu’alors une ethnie, les transformant en tributaires et Indiens de service, et étant emmenés à vivre sous la tutelle politique et économique de leur encomendero, déracinés de la majorité de leur territoire ancestral. Ce système juridique et son application au Chili d’une manière générale, et à Copiapo d’une façon plus spécifique, provoqua toute une série de ruptures au niveau même des structures sociales de ce groupe : déclin démographique rapide, perte des terres communautaires, changement des formes politiques, perte de la langue et de la religion. A travers l’étude du développement de ces différents processus, nous montrons comment cette ethnie disparut, car perdant l’ensemble des caractéristiques de leur identité et des moyens qui leur auraient permis de se reformuler en tant que communauté. / The purpose of this work is to study the history of Copiapo Indians ethnic group, situated in Chile, specifically in the valley of Copiapo, in the southern borders of the Atacama Desert. Thus the treaty period (1544-1806) follows the development of this group during the Colony, from its birth as an encomienda to its disappearance. Indeed, this group appears on the time that the governor of the Kingdom of Chile, Don Pedro de Valdivia decided to entrust all the inhabitants of the valley on a single encomienda, which were previously an ethnic group, transforming them into fiscal persons and servant Indians, and taken to live under the political and economic tutelage of their encomenderos, uprooted from the majority of their ancestral territory. This legal system and its application in Chile in general, and specifically in Copiapo, triggered a series of ruptures at the level of the social structures of this group: rapid population decline, loss of community lands, changing political forms, loss of language and religion. Through the study of the development of these various processes, we show how this ethnic group disappeared, having lost the feature set of its identity and the means that would have allowed them to rebuild as a community.Keywords : / El objetivo de este trabajo es estudiar la historia de la etnia de los Indios de Copiapó, grupo situado en Chile, específicamente en el valle de Copiapó, en los márgenes meridionales del desierto de Atacama. Es así que el periodo tratado (1544-1806) responde al desarrollo mismo de este grupo durante la Colonia, desde su nacimiento como grupo encomendado hasta su desaparición. En efecto, esta grupo aparece en el momento en el que el gobernador del Reino de Chile don Pedro de Valdivia decide encomendar a todos los habitantes del valle, que hasta entonces conformaban una etnia, transformándolos en tributarios e indios de servicio, y llevados a vivir bajo la tutela política y económica de su encomendero, desarraigados de gran parte de su territorio ancestral. Este sistema jurídico y su aplicación en Chile de forma general, y en Copiapó específicamente, provocó una serie de rupturas a nivel de las estructuras sociales de este grupo: veloz descenso demográfico, pérdida de las tierras comunitarias, cambio de las formas políticas, pérdida de la lengua y de la religión. A través del estudio del desarrollo de estos diferentes procesos, mostramos cómo esta etnia desapareció, al haber perdido el conjunto de características de su identidad y de los medios que les habrían permitido reconstruirse como comunidad.

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