889 resultados para Geoprocessamento e Sensoriamento remoto: Caracterizacao ambiental
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Pós-graduação em Agronomia (Energia na Agricultura) - FCA
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Pós-graduação em Geociências e Meio Ambiente - IGCE
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A urbanização tem provocado variações locais em diversos elementos climáticos, dentre eles o aumento da temperatura do ar, provocando o aparecimento de porções do espaço com temperaturas maiores do que as áreas ao seu entorno, o que se chama de ilhas de calor urbanas. Dentre as causas do surgimento das ilhas de calor, a retirada da cobertura vegetal é o mais relevante. A finalidade deste trabalho foi identificar, através da técnica de sensoriamento remoto, as ilhas de calor urbanas e as ilhas de frescor urbanas na área continental do Município de Belém, assim como a variação da cobertura vegetal, comparando os resultados dos anos de 1997 e 2008, a fim de revelar uma possível relação entre a variação da cobertura vegetal e as ilhas de calor e ilhas de frescor urbanas. Para desenvolver esta pesquisa, recorreuse a imagens termais do sensor TM para determinação dos valores de temperatura, assim como dados de temperatura do ar observados nas estações: climatológica convencional de Belém (2o. DISME/INMET), meteorológica sinótica de Val-de-Cans e meteorológica sinótica automática de Belém (2o. DISME/INMET). A cobertura vegetal foi determinada também com uso das imagens do sensor TM, com as bandas 3,4 e 5. De acordo com os resultados obtidos, concluiu-se que em 2008 houve um aumento das ilhas de calor urbanas, principalmente nos bairros localizados nas áreas da Avenida Augusto Montenegro e Rodovia Arthur Bernardes, e redução das ilhas de frescor em diversas partes da área continental de Belém, em decorrência da ausência da cobertura vegetal, em relação ao ano de 1997. Também foi possível identificar que na área de estudo, houve uma redução da cobertura vegetal existente em 2008 em comparação a 1997, redução essa que ocorreu principalmente na área que está além da 1ª Légua Patrimonial do município de Belém, no eixo compreendido entre a Avenida Augusto Montenegro e a Rodovia Arthur Bernardes, ampliando a área urbana e o aumento da temperatura, que favoreceu a expansão de ilhas de calor.
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The object of this work was to study the dynamics of evaporation in the Itumbiara reservoir, located in Central Brazil, using MODIS-derived water surface temperature (product MOD11A1) and meteorological data acquired over the water surface. The evaporation rates were derived from latent heat flux, estimated through a mass transfer model. The estimates were carried out for the period between 1/1/2010 and 31/12/2010. The results showed that evaporation rate tends to increase from January to September and then decrease from September to December. The evaporation rate reached values near 20 mm day-1 in Itumbiara reservoir during the dry season in 2010. The mean evaporation rate for the wet season was 3.66 mm day-1 and 8.25 mm day-1 for the dry season. The total water volume evaporated from Itumbiara reservoir during 2010 was estimated at about 1.7 billion m³ (2,300 mm) which represents 10% of total reservoir volume. The results suggest that advection is the main transport mechanism which drives the evaporation in Itumbiara. The convective processes contribute secondarily to evaporation in Itumbiara reservoir.
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Sugar cane production is of the utmost importance to the economy of the entire Brazil, due to its multiple utility, being used as the raw material for the manufacture of various items, particularly, sugar and alcohol. In areas of sugarcane monoculture, the appropriate management of soils and water is essential, not only for the maintenance of the quality of the environment, but also for the quality of life of the population. Among the main impacts generated by the cultivation of sugar cane, stands out the withdrawal of the riparian forest, which is essential to the balance and maintenance of the ecosystem. Before that, the present work aimed at mapping the environmentally vulnerable areas in the basin of a tributary of the Corumbataí river, located in the district Santa Olímpia, in the city of Piracicaba-SP. For the purpose, techniques were used in Geoprocessing, aiming to produce thematic maps of Slope, for the Use and Occupation of Land, of Permanent Preservation Areas (APP), Soil and Geological of the basin of interest. From these mappings, the analysis was performed multi-criteria, which resulted in the Map of Environmental Vulnerability. This mapping environmental assessment of the study area, indicating proposals of practices for the management and conservation of soil and water resources, for the purpose of improving the environmental quality of the analyzed area. In this way, the research of this nature, may help in the decision-making on the part of the governmental bodies as well as civil society
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Construction of linear engineering as, roads, ducts and multiducts as roads, has a strong feature of the diversity of land on which they are deployed. This diversity involves properties geological, geomorphological and structural variety. The purpose of this work is to characterize the physical environment in relation to their ability to support the implementation of civil works linear. To achieve this, the use of orbital remote sensing, in this case, Landsat - TM. Interpretative techniques are applied to images in order to assess the forms of relief and drainage found that they can set properties and have built a favorable meaning or not to implement these works. The results and thematic maps presented in this study allow us to promote the geoenvironmental analysis for the planning phase sustainable linear civil constructions (roads and multiducts)
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Pós-graduação em Estudos Linguísticos - IBILCE
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Como o empréstimo de palavras ocorre em praticamente todas as línguas, o objetivo desta pesquisa foi examinar um corpus paralelo na área de sensoriamento remoto para analisar termos simples, complexos e compostos traduzidos por meio de empréstimo linguístico. Esta investigação baseou-se na abordagem adotada por CAMARGO (2005, 2007), a qual se apóia nos Estudos da Tradução Baseados em Corpus (BAKER, 1995, 1996; TOGNINI-BONELLI, 2001), na Linguística de Corpus (BERBER SARDINHA, 2004) e, em parte, na Terminologia (BARROS; KRIEGER & FINATTO, 2004). Para a extração dos dados foi utilizado o programa WordSmith Tools, versão 6.0 (SCOTT, 2012). No tocante aos resultados, foram encontrados termos traduzidos por meio de empréstimos com explicitação, quando de sua primeira utilização no texto.
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The aim is to analyze a corpus of remote sensing in order to identify acronyms in English and then search for their equivalents in Portuguese. The research is based on the approach of Corpus-Based Translation Studies (BAKER, 1995), Corpus Linguistics (BERBER SARDINHA, 2004), and Phraseology (PAVEL, 2003). The program WordSmith Tools version 6.0 is used. The results show that there is no standardization in these translations.
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Brazil was one of the countries that stood out in the list of nations that publishes more articles in scientific journals. From 2007 to 2008, the Brazilian scientific production has moved from 15th to 13rd place in the world ranking published articles in professional journals. However, 60% of articles published by the Brazilians are in Portuguese, which makes the Brazilian work have little international attention. The purpose of this research is to build and analyze a parallel corpus composed of a book of Remote Sensing and its translation in the direction English into Portuguese in order to create a glossary of most recurrent terms in the literature of Remote Sensing. The achievement of these goals will take for theoretical and methodological foundation the Corpus-Based Translation Studies (BAKER, 1993, 1995, 1996; CAMARGO, 2005), Corpus Linguistics (BERBER SARDINHA, 2004) and principles of Terminology (BARROS, 2004; KRIEGER & FINATTO, 2004). It will also use Wordsmith Tools program and its tools. Besides the parallel corpus, we will also build two comparable corpora respectively from articles published in Brazilian and international journals in the area. The first results show that the translators made use of greater variation of vocabulary in their translations, which can be a way to make the text more clear to the reader. For the analysis of glossary entries, professionals from the National Institute for Space Research - INPE, will be consulted and their views aggregated to this research to give consistency to the production of the proposed bilingual glossary.
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The aim of this research is to build and analyze a parallel corpus in the field of remote sensing in order to identify, according to its frequency, specialized collocations in English and then search for their equivalents in Portuguese. The research is based on the interdisciplinary approach of Corpus-Based Translation Studies (BAKER, 1995; CAMARGO, 2007), Corpus Linguistics (BERBER SARDINHA, 2004; TOGNINI-BONELLI, 2001), Phraseology (ORENHA-OTTAIANO, 2009; PAVEL, 1993), and some principles of Terminology (BARROS, 2004). For manipulating the corpora, the program WordSmith Tools (SCOTT, 2012) version 6.0 is used. To support this study, two comparable corpora in English and Portuguese were also built from articles published in both national and international journals in remote sensing. The results show that the collocations in Portuguese seem to be still in the process of conventionalization, as the translators made use of greater variation in their translational options, which can be a way to make the text clearer for the reader.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Agronomia (Ciência do Solo) - FCAV