Revista Brasileira de Climatologia (Jun 2010)
ILHAS DE CALOR E FRESCOR URBANAS NO BAIRRO CAMOBI, SANTA MARIA/RS, EM SITUÇÃO ATMOSFÉRICA DE DOMÍNIO DA MASSA POLAR ATLÂNTICA NO INVERNO
Abstract
The objective of this paper is to analyze the thermohygrometriccharacteristics and the heat and fresh-island formation on CamobiStreet in Santa Maria-RS, in a day with Atlantic polar air mass on winter.Therefore, two changeable transect (one in N/ S and other in E/W directions)were determined in which the temperature (°C) and air humidity (%) werecollected in previously established points and in five different times (at 9 am,12am, 3 pm, 6 pm and 9 pm). Cartograms related to the thermohygrometricfield were accomplished by using Surfer for Windows 8.0. For dataanalysis, maps of the slope orientation and of the land use by using Spring5.0.3. The results showed that: the thermo-hygrometric characteristics of thestudy field are subjected to the solar orientation, and; the slope orientation andexposition are subjected to the beginning of solar radiation and land use. Theheat and fresh islands of intense magnitude (9°C and - 9°C), were betterdefined at 6 pm and 9 pm, when the temperature between the center and thesurrounding region of Camobi street increased, mainly in the situation of polarcontrol on winter.
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