994 resultados para Clima Urbano
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The present study deals with the relationship between urban vegetation and climate. The process whereby the Parque das Dunas a 1,172 ha green area in the city of Natal, State of Rio Grande do Norte exerts influence on the climate of the city is analyzed. The hypothesis on which the present work rests is that the green area referred to acts upon the climate of the city. The study is based on the analysis of climatic factors and elements of this green area and of the city of Natal. In order to give rise to final recommendations, a methodology grounded on a quantitative and qualitative standpoint has been used. The data were collected both within and without the limits of the Parque das Dunas area. Secondary and primary data resulting from the measurements taken by the researcher and her work group have been used. The aim was to contribute to the understanding of the influence of vegetation on the climate of a city having a warm and humid climate. A historical and environmental characterization of the Parque das Dunas was then sought. The local climatic factors and the elements of the climate have been studied within the scope of the city of Natal. A comparative study between the climatic elements within and without the limits of the Parque das Dunas area from the survey of technical data and the systematization of the information collected has been made, aiming at proposing a set of bioclimatic recommendations for the urban design in Natal. The results of such work allowed for the validation of the important role that the Parque das Dunas plays in the climate of Natal. This has led to the acknowledgement of the relevance of the green areas on the climate of cities. They bring about important benefits to the process of rendering agreeable the climate in the urban environment by providing pleasant microclimates that give a valuable contribution to the environmental comfort of urban nuclei having the same size of Natal
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Este estudo teve como objetivo principal investigar as características da temperatura e umidade relativa do ar intra-urbana e da zona rural próxima a Teodoro Sampaio, SP, cidade de pequeno porte que está localizada a 22º 53' 25 S e 52º 16' 75 W, no extremo Oeste do Estado de São Paulo/Brasil. Para a coleta de dados foram utilizados miniabrigos meteorológicos. Os miniabrigos meteorológicos foram equipados com psicrômetros e distribuídos em sete pontos, sendo seis na área urbana e um na área rural, sendo que as coletas de dados foram realizadas às 7h, 9h, 15h e 21h. As coletas de dados aconteceram em dias representativos de janeiro de 2005 - verão; e em julho de 2005 - inverno. Esse estudo concluiu que Teodoro Sampaio, cidade de pequeno porte com aproximadamente 16.000 habitantes, já possui um clima urbano específico, conseqüência da ocupação do solo e das funcionalidades urbanas, o que acabou gerando para a cidade ilhas de calor e de frescor.
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Pós-graduação em Geografia - FCT
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Pós-graduação em Geografia - IGCE
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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It is known that the urban environment modifies the energy balance between the surface and the atmosphere, causing changes in temperature, relative humidity, among other things, opening the way for studies aimed at urban climatology. Based on the theme of urban climate, this research focuses on the city of Assis, located west of São Paulo. The generation of urban climate is a result of various factors, among which stand out: the use and different land use, the thermodynamic properties of buildings, number of buildings in the urban, socioeconomic activities, etc.. In general, this increases the temperature and reducing relative humidity, providing thermal discomfort. The rural environment is used for comparison studies to this theme by presenting different characteristics in relation to the structure, morphology and urban functionality. The main objective of this study is to determine the characteristics of temperature and humidity environments with the habits and occupations of the different soils in winter, at night, one inserted into the urban fabric of Assis and the other in the rural environment, to verify for evidence of changes in climatic elements because of urbanization. To collect the data will be used mini automatic weather stations that record data on temperature and humidity. For analysis of the results will be made between the data obtained in the city and the countryside, developing graphics application using Excel to tabulate the data. It was found that there were differences in the thermo-hygrometric data collection points, showing a specific urban climate in the city of Assis
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O processo de urbanização é bastante expressivo na modificação do clima na escala local, pois as formas materiais assumidas pela cidade, bem como as atividades que nela se desenvolvem, provocam anomalias nos elementos do clima como a temperatura, umidade relativa do ar, direção e velocidade do vento. Destes, a temperatura tem se destacado nos estudos sobre o clima urbano, pois as características da área urbana promovem seu aumento tanto no ar quanto nos alvos da superfície. Nesse sentido, este estudo objetivou detectar as anomalias térmicas intraurbanas e suas magnitudes, relacionando-as com os tipos de uso e ocupação da superfície do solo no município de Presidente Prudente-SP. Para tanto, foram realizadas análises das diferenças térmicas e higrométricas entre o urbano e o rural em dias representativos do inverno e do verão, e a verificação da temperatura da superfície através do sensoriamento remoto no infravermelho termal. Os resultados apresentaram que os tipos de tempo, assim como as características da superfície foram responsáveis pelas maiores ou menores diferenças entre a área urbana e a rural, o que demonstra a importância de se adequar o planejamento urbano às características do ambiente local
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There are obvious changes that occur within the cities, experienced in synthesis for the degradation of the environment and especially the worsening quality of life. Even small cities, began to exhibit characteristics typical of an atmospheric climate. Thus, it becomes natural to analyze the characteristics of these spaces, unlike the medium and large cities, provide a detailed analysis of the peculiarities of intra-urban space in order to highlight what factors enhance or soften the formations of a typical urban climate distinct patterns of land use. The aim of this research from a geoenvironmental mapping of attributes (uses and land cover, vegetation and tree characteristics of buildings) while representing the dynamic City entertainment. Thus, we seek to inter-relate these indicators to analysis climate urban-rural and intra-urban applied to the city of Alfredo Marcondes / SP, a small town in order to identify a potential compromise climate conditions point to generate a specific climate. From this detailed analysis, we intend to give suggestions with the government to improve the comfort of that environment. For the data collection was organized a specific methodology for its collection, organization and representation and for the record of climatic data (temperature, wind speed and direction and cloud cover) were used mini-shelters weather with temperature sensors in fixed locations, and a temperature sensor attached on the side of a vehicle, 1.5 meters in height from the floor for 42 points perpassando selected in different intra-urban spaces... (Complete abstract click electronic access below)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Geografia - IGCE
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The present study deals with the relationship between urban vegetation and climate. The process whereby the Parque das Dunas a 1,172 ha green area in the city of Natal, State of Rio Grande do Norte exerts influence on the climate of the city is analyzed. The hypothesis on which the present work rests is that the green area referred to acts upon the climate of the city. The study is based on the analysis of climatic factors and elements of this green area and of the city of Natal. In order to give rise to final recommendations, a methodology grounded on a quantitative and qualitative standpoint has been used. The data were collected both within and without the limits of the Parque das Dunas area. Secondary and primary data resulting from the measurements taken by the researcher and her work group have been used. The aim was to contribute to the understanding of the influence of vegetation on the climate of a city having a warm and humid climate. A historical and environmental characterization of the Parque das Dunas was then sought. The local climatic factors and the elements of the climate have been studied within the scope of the city of Natal. A comparative study between the climatic elements within and without the limits of the Parque das Dunas area from the survey of technical data and the systematization of the information collected has been made, aiming at proposing a set of bioclimatic recommendations for the urban design in Natal. The results of such work allowed for the validation of the important role that the Parque das Dunas plays in the climate of Natal. This has led to the acknowledgement of the relevance of the green areas on the climate of cities. They bring about important benefits to the process of rendering agreeable the climate in the urban environment by providing pleasant microclimates that give a valuable contribution to the environmental comfort of urban nuclei having the same size of Natal