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Presidente Prudente localiza-se no oeste do Estado de São Paulo (Sudeste do Brasil), região de confronto entre os sistemas atmosféricos tropicais e extratropicais. A cidade é conhecida como uma das mais quentes do Estado de São Paulo, devido ao registro de altas temperaturas em boa parte do ano. O objetivo do presente artigo foi o de analisar um episódio de onda de frio, que ocorreu entre os dias 12 a 18 de julho do ano de 2000 e trouxe diversas consequências para a população prudentina, ou seja, esses dias com temperaturas baixas propiciaram impactos na agricultura, no comércio e na saúde das pessoas.

This paper aims to analyze and compare thermal characteristics of urban climate of two middle size cities: Rennes (France) and Presidente Prudente (Brazil), by registering air temperature (network pointes and mobile transect) and surface data obtained by using Landsat7 satellite thermal images. Results show that temperature grows faster in Rennes than Presidente Prudente and urban heat island generation (UHI) by different cities urbanization processes.

INTRODUÇÃO O município de Presidente Prudente, Estado de São Paulo, situa-se na zona fisiográfica denominada Pioneira. Acha-se no traçado da Estrada de Ferro Sorocabana e da Via Raposo Tavares, distando da Capital do Estado por ferrovia, 738 quilômetros; por rodovia, 607 quilômetros e em linha reta, 515 quilômetros.

The use of thermal infrared images is an important technique to provide qualitative information about the temperature of a city and can greatly contribute to urban planning as they show the impacts of the surface temperature according to the use and occupation of land. This research aims to analyze the differences in summer intra urban temperatures through Landsat 7 satellite thermal images in two medium-sized cities at different latitudes: Porto (Portugal) and Presidente Prudente (Brazil). The results showed that some areas of the city have extremely high surface temperatures contributing to the discomfort.

The peripheral habitat of contemporary society is a place of socio-spatial inequalities in numerous Brazilian medium-sized cities. Both popular and upper social classes subdivisions are located in the periphery, where the infrastructure is precarious, with little availability of quality public transportation or few commercial and services zones nearby for the inhabitants. This paper proposes to highlight the socio-spatial inequalities in terms of both forms and social contents of two peripheral neighborhoods of a medium-sized Brazilian city. The spatial analysis shows that the distance from the center leads to a change in the daily practices of the inhabitants, especially in their mobility. A reflection about an ongoing process of socio-spatial fragmentation from a preliminary analysis of two peripheral neighborhoods constitutes the result of the article.