Variação microclimática influenciada pela topografia e urbanização

Abstract

The objective of this study was to identify the topography (differences in elevation, slopes and slope exposure) and urbanization (land use) influence in the variation in Cuiabá-MT. The city was chosen because it does not have urban planning that considers the topography as factor for the local climatic worsening due to the urbanization and to present characteristics of climate with high temperatures, climatic condition unfavorable to heat dissipation, morphological diversity. Therefore, the information gathering was organized and carried out in three aspects: topography, urbanization and meteorology; in each scale of interference: macro scale and mesoscale, local scale and microscale and statistical analyzes for the correlation between the parameters and variables of the aspects of study. It was necessary to collect the meteorological data from a control station installed in 44º BIMTZ and 16 points in transects developed in two stages (eight days in hot-dry and eight days in hot-humid) and three times on day (8h, 14h and 20h). A trend of influence was observed due to the time lag. It was identified the non normality of the temperature data and only significant variances were identified in relation to the temporal variables such as: day of measurement, period of the day and seasonality. The significant correlation between temperature and altitude recorded at the points chosen for the study was identified. It is concluded that the topography influences the temperature and this correlation is evidenced in the hot-dry period at night.