ENTERING THE CITY OF PELOTAS TO TAKE ITS TEMPERATURE

Abstract

This article presents experiments in an urban climate scenario, that were performed in the city of Pelotas and inspired by schemes proposed by Carlos Augusto de Figueiredo Monteiro. The first experiment, held on September 13th 2015, was based on theoretical assumptions of the heat islands formation and it sought, through mobile surveying, to analyze the creation of thermal differences in the middle of town. During a nighttime survey, a heat island of a 5,4°C maximum intensity was identified in the medium-size city. The observed heat island’s spatial arrangement shows a core within the central-southern area and also cold air flows in the interstices. The second experiment, held during 2014-2015, evaluated the skyview factor (SVF) effect over the air temperature. The SVF was calculated for ten different intown temperature and air humidity registering stations, and it was compared afterwards to the air temperature and air humidity behavior. Six intersperse registering periods were held and each registering station had a datalogging device. The results show the relation between microclimate and the SVF. During the considered registering periods, the locations that were identified to be more obstructed were 70% of the times above temperature average. The less obstructed locations were the ones that showed below average temperatures.