Urban climate under small cities: influence of geographical factors in climate variation in Lagoa Formosa (MG)

Abstract

The urban environmenthas become more and more the home of man. This intrinsic relationship between man and urban space translates into the transformation of the landscape, resulting in several urban environmental phenomena such as heat island, greenhouse effect, atmospheric pollution, thermal inversion, soil waterproofi ng among others, which in the long term interfere with environmental quality and in the quality of life of city dwellers. In this way the objective of this research was to investigate the characteristics of the urban climate (thermal and hygrometric fi eld) in the city of Lagoa Formosa (MG), and how they react on the influence of geoecological factors and city structure. The Monteiro Urban Climate System (1976) was the basis for the methodological proposal presented using the mobile transects model, which consists of demarcation and data collection of temperature, air humidity and direction and speed of the winds at points scattered throughout Urban site, to include interurban spaces as well. In addition to the acquisition of data in fixed points. The results allowed to detect that the urban area of Lagoa Formosa does not always present higher temperatures in relation to its rural surroundings or to the outskirts of the city.

Keywords

• clima urbano. temperatura. umidade relativa do ar. espaço urbano. lagoa formosa.