Hydrographic Survey
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Diamonds from the Santo Antônio River (Delfinópolis, Minas Gerais): probable relationship with the Canastra-3 Kimberlite
Abstract The study identifies the Canastra-3 Kimberlite magnetic anomaly as the likely primary source of the alluvial diamonds recovered by "garimpeiros" in the Santo Antônio River basin (Delfinópolis, southwestern Minas Gerais). This conclusion is based on cumulative geophysical, hydrographic, metallogenical and mineral geochemistry evidences. The study a
REM, Int. Eng. J.. Publicado em: 2020-03
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2. Morphometry and mixing regime of a tropical lake: Lake Nova (Southeastern Brazil)
ABSTRACT Lake Nova (15.5 km2) is the second largest lake in the Lower Doce River Valley (Southeastern Brazil). A better understanding of ecosystem structure and functioning requires knowledge about lake morphometry, given that lake basin form influences water column stratification. The present study aims to contribute to the understanding of relationship bet
An. Acad. Bras. Ciênc.. Publicado em: 01/09/2016
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3. Análise dos critérios de priorização de projeto junto ao fundo estadual de recursos hídricos do Estado de São Paulo: estudo de caso do Comitê da Bacia Hidrográfica do Tietê-Jacaré
The State Water Resources Fund of São Paulo (FEHIDRO) was established by the 7.633 State Law, of December 30 of 1991, to give financial support to the hydrographic basins actions. The resources from this fund are distributed in the Water Basis Committees (CBH) every year, each CBH is responsible for finding the way to select the projects. This research aime
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2012
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4. Levantamento hidrográfico : topobatimetria do canal entre as ilhas do Lino e do Laje
Atualmente, as rotas marítimas comerciais movimentam cerca de 80% das exportações mundiais. Somente esta afirmação já poderia ser suficiente para justificar qualquer estudo relativo à criação e manutenção de cartas que visem descrever as áreas marítimas. A hidrografia consiste em um conjunto de métodos que permitem modelar estas áreas, não so
Publicado em: 2010
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5. AnÃlise do emprego de linhas de base triviais no ajustamento de Redes GPS
This research describes the results analisys of a series of GPS adjustment, made from different baseline combinations. It was tried to create conditions to a comparison between a adjustment which uses all baselines of a session (independent + trivial) and a adjustment which uses only the independent baselines of the session. When only independent baselines a
Publicado em: 2008
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6. GESTÃO AMBIENTAL EM BACIAS HIDROGRÁFICAS / ENVIRONMENTAL MANAGEMENT IN HYDROGRAPHIC BASINS
The hydrographic basins are being occupied in an inadequate manner, which leads to a deterioration of the natural resources (Water Resources, Flora, Fauna, Soils and Air). The anthropical actions occur due to the inadequate use of the soil, in total disrespect as to the earth use capacity. The deforestation of the water spring, permanent preservation areas,
Publicado em: 2007
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7. Evaluation of the hydraulic potential in hydrographic basins by using the geographical information systems / Avaliação do potencial hidráulico em bacias hidrográficas por meio de Sistemas de Informações Geográficas
The hydroelectric resources in the Country, either in terms of the capacity already installed and its potential still unexplored rather represent greatly strategic and economically important assets. In generation of the decentralized electric power, the hydroelectric minicentrals (MCHs) are distinguished within an environmental management and preservation co
Publicado em: 2007
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8. Levantamento da malacofauna limnica e aspectos ecológicos de focos de esquistossomose em Ana Dias, Vale do Ribeira - SP / Malacofauna survey and ecological aspects of schistosomiasis focus in Ana Dias, Vale do Ribeira - SP
Schistosomiasis is one of the oldest parasitic diseases that exist. It is believed that the disease arrived in Brazil with the slave trade, and found favorable conditions to its spreading out. The Vale do Ribeira region is among the main transmission areas in the State of Sao Paulo. The valley is characterized by a hydrographic layout rich in small water vei
Publicado em: 2007
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9. Levantamento de solos em sub-bacias hidrogrÃficas como apoio para avaliaÃÃo do uso da terra e da potencialidade da recarga de aqÃÃferos. / Soil survey in hydrografic watersheds as support to evaluation of land use and aquiferous recharge potencial.
The knowledge of natural resources, mainly soil water, is fundamental for a better evaluation of land use in sustainable basis, indicating its potential and limitations for agricultural and non-agricultural exploration. This evaluation can be improved by the use of Land Agricultural Vocation Evaluation System, in which the differential impacts of limitations
Publicado em: 2007
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10. Eunotiales (divisão bacillariophyta) perifíticas de algumas localidades da bacia hidrográfica do Rio Descoberto, Distrito Federal - Goiás, Brasil / Periphytic eunotiales (Bacillariophyta division) from several points of the hydrographic basin of the Descoberto river, Federal District - Goiás, Brazil
A pioneer taxonomic survey of the Eunotiales (Bacillariophyta) from the Descoberto River and some of its tributaries is the aim of this study. In general, few taxonomic studies of diatoms have been done in the Federal District (DF) and Goiás State, Brazil. The Descoberto river basin, where the rivers that form the study area are located, is the main hydric
Publicado em: 2007
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11. Mercury occorrence at the Iguaçu River Basin, State of Parana, Brasil / Ocorrencia de mercurio na Bacia do Rio Iguaçu, Estado do Parana, Brasil
Mercury contents in rocks, soil and stream sediment were determined to investigate the origin of the geochemical anomaly found in sediments of the Iguaçu River, as indicated in previous studies of a regional geochemistry survey. Except for its headwaters in the Curitiba area, with Precambrian basement rocks and Pleistocenic sediments of the Curitiba Basin,
Publicado em: 2007
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12. The Social economics costs of the impacts of the urbanization in the Imperatriz urban springs: a case study in Riacho Bacuri micro-basin / Os Custos socioeconômicos e ambientais dos impactos da urbanização de Imperatriz nos mananciais urbanos: um estudo de caso na micro-bacia do Riacho Bacuri
The analysis has as research line urbanization, cites of the Amazonian end environment. A historical survey of the hydrographic potential of the region, where the city of Imperatriz-MA is located currently, identifying geographically all the springs of ware, sources and tributaries of the Tocantins river. With posse these data and information, it was possibl
Publicado em: 2005