Mestrado em Ciências Ambientais (PRPG)
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Navegando Mestrado em Ciências Ambientais (PRPG) por Por Orientador "Formiga, Klebber Teodomiro Martins"
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Item Estudo hidrossedimentológico em rios da bacia hidrográfica do Rio Meia Ponte - Goiás, Brasil(Universidade Federal de Goiás, 2019-02-11) Amaral, Ana Karolyna Nunes; Formiga, Klebber Teodomiro Martins; http://lattes.cnpq.br/0787413754235970; Formiga, Klebber Teodomiro Martins; Bayer, Maximiliano; Ribeiro, Noely VicenteThe present work show an analysis of hydrosedimentological dynamics in rivers of the River Basin Meia Ponte (BHRMP), localized in the State of Goias. The work was objective to analyze the sedimentological behavior as a way of understanding the river processes in the studied rivers. For the development of the work, were collected sediment in suspension in six rivers of the basin were collected in at least three points in each river. Hydrological surveys were carried out with ADCP equipment. For the granulometric distribution was used MASTERSIZER 2000 and the LISST – SL equipment. The samples were made during the dry season, at the end of July and November during the rainy season. The samples were submitted to laboratory analysis, which allowed the interpretation and discussion of the results afterwards. The granulometry of suspended sediments had their greatest representativity in the silt class. From the collected data, the Suspended Sediment Concentration in the BHRMP rivers ranged from 2,62 to 21,69 mg / l, transporting on average 6,31 tons/day of suspended sediments during dry season. In the rainy season the suspended sediment concentration ragend from 39,02 to 127,58 tons/day. From the calculations of specific sediment production, it was found that the basin produced 1,72 and 58,18 ton/km2/year form the dry to the rainy season respectively.Item Aplicação do modelo WEAP na avaliação de alocação de água do reservatório dos Pequenos Libombos, Moçambique(Universidade Federal de Goiás, 2020-02-12) Notisso, Pedro Francisco; Formiga, Klebber Teodomiro Martins; http://lattes.cnpq.br/0787413754235970; Formiga, Klebber Teodomiro Martins; Teixeira, Denílson; Cortes, Jussanã MilogranaThe issue of satisfying human and environmental water needs has been tackled in the water resources management and planning framework in the Africa Austral. Currently, the Umbeluzi river basin is Greater Maputo main source of water supply. This study was driven by uncertainties generated by difficulties in meeting future water needs. What can happen to water supply if the patterns of population growth, industrial growth and increase in irrigation areas change? This article aims at assessing the capacity of meeting water needs in the Greater Maputo area in Mozambique through application of WEAP (Water Evaluation and Planning System). WEAP is a model that allows simulation of water resource systems with multiple uses in an integrated manner. The case study is the Mozambican part of the Umbeluzi River basin. Four scenarios were simulated: the reference scenario which corresponds to the on-going exploitation; three impact scenarios: Lower Growth that represents lower values of growth of consumption sites, Trend that reflects average growth values of consumption sites and Greater Growth which corresponds to higher values of population growth, expansion of the agricultural and industrial area, between 2018 and 2040 and adaptation measure. The methodology included the estimation of affluences to the system obtained from the results of the Water Year Method. An assessment of the capacity to meet water needs was made using indicators such as coverage and supply guarantee. The results obtained show the system's inability to meet current and future needs. The system has an annual water supply guarantee of 70.9% and 63.5% in the Reference and Lower Growth scenarios, with more critical values of 42.1% and 31.7% in the Trend and Higher Growth scenarios. All scenarios have an average duration of each failure exceeding three months.