Hydrologic Resources
Mostrando 25-34 de 34 artigos, teses e dissertações.
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25. Análise das relações climato-hidrológicas e das demandas hídricas no alto curso da bacia hidrográfica do Rio Bagagem/MG
The rational searching for rational use of the hidric resources motivated this thesys whose objetctive was to know the climate-hidrologic processes that happen inside a hidrografic basin by the human interference in the environment. The understanding of those processes propitiated subsidies for the understanding of the space organization of the area, mainly
Publicado em: 2007
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26. Critérios para avaliação da qualidade de sedimentos - Estudo de caso: Sub-bacia do Ribeirão Espírito Santo, afluente do Rio São Francisco / Criteria for evaluating sediment quality - Case Study: Sub-Watershed of Espírito Santo Stream; Affluent of the São Francisco River
Sediment Quality Values Guidelines (SQVG) have been used for evaluating ecological risk associated with the sediment contamination for benthonic organisms. The main objective of this work was to develop methodologies and to collect data that allowed the application of SQVG for the following metals: Cd, Cu, Pb, Ni and Zn. The location chosen for the case stud
Publicado em: 2007
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27. Propostas para gestão integrada dos recursos hídricos na bacia hidrográfica do rio Jardim DF.
The management of the water resources should be based on technical, scientific, political and cultural criteria. The administration of the water should consider a participative approach, involving the administration and the development of the control actions, including the participation of users, planners legislators in all of the levels, being necessary an
Publicado em: 2006
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28. Water resources integrated modeling supported by a geographic information system / Modelagem integrada de recursos hídricos com apoio de um sistema de informações geográficas
The relative or complete lack of water has been directing various actions in order to solve this problem. The national water resources politic (Law 9.433/97) with its five instruments for water resources planning and management can be considered the main action. Among these instruments, it is found the information system that has as purpose to collect, store
Publicado em: 2006
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29. Quantification of impervious surfaces in urban areas using remote sensing techniques / Quantificação das superfícies impermeáveis em áreas urbanas por meio de sensoriamento remoto
Impervious surface coverage growth has direct consequences in quantity and quality of stormwater runoff, such as floods and nonpoint source pollution. The quantification of basins imperviousness makes possible to use it as a water quality indicator for urban areas and as an important planning and managing instrument in the urban water resources management sy
Publicado em: 2006
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30. An ecological and economical zoning proposal for the Environmental Protection Area of Tambaba, in the state of Paraíba / Proposta de zoneamento ecológico econômico para a área de proteção ambiental (APA) estadual de Tambaba - Paraíba
This work is a proposal of an ecological and economical zoning (ZEEZoneamento Ecológico Econômico, in Portuguese) for the Environmental Protection Area (APAÁrea de Proteção Ambiental, in Portuguese) (both categories used by IBAMA, the Brazilian Institute for the Environment and Natural Resources) at Tambaba on the littoral of Paraíba state. The APA of
Publicado em: 2006
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31. Verificação de parametros hidricos da Bacia do Rio Jaguari no municipio de Jaguariuna / The verification of hydric parameters in the Jaguari river s Basin in Jaguariuna country
The increasing demand of the hydric resources requires the development of efficient mechanisms to the management of those resources. The implantation of hydric resources management guidelines needs practical and efficient instruments to help when taking decisions. In this research it is proposed, as an auxiliary instrument in the hydric resources management,
Publicado em: 2005
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32. SURFACE RUNOFF AND SOIL AND WATER USAGE AT SERRAGEM STREAN BASING â PARAÃBA VALLEY / O ESCOAMENTO SUPERFICIAL E O USO DO SOLO E DA ÃGUA NA BACIA DO RIBEIRÃO DA SERRAGEM â VALE DO PARAÃBA
The need for differentiated utilization of surface runoff at Hydrographic Basins is causing a series of disagreements related to its method of using. In some sites at Vale do ParaÃba (ParaÃba Valley) distribution and water consumption break-downs have been occurring. Hydric resources utilized until recently at Hydrographic Basin of Serragem Stream was pred
Publicado em: 2005
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33. Analise e previsões de vasões utilizando modelos de series temporais, redes neurais e redes neurais nebulosas
Analysis and forecast of seasonal stream flow series are of utmost importance in the operation planning of water resources systems. One of the greatest difficulties in forecasting of those series is the seasonality nature of stream flow series due to wet and dry periods of the year. For a long time, the use of stochastic models, based on the c1assic Box &Jen
Publicado em: 2000
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34. Bioavailability of organic matter in a highly disturbed estuary: The role of detrital and algal resources
The importance of algal and detrital food supplies to the planktonic food web of a highly disturbed, estuarine ecosystem was evaluated in response to declining zooplankton and fish populations. We assessed organic matter bioavailability among a diversity of habitats and hydrologic inputs over 2 years in San Francisco Estuary's Sacramento–San Joaquin River
The National Academy of Sciences.