标题：ÁREA VERDE COMO OÁSIS TÉRMICO NA REGIÃO METROPOLITANA DE PORTO ALEGRE/RS (A urban forest as thermal oasis in the Metropolitan Area of Porto Alegre/RS)
出版社：Editora da Universidade Federal de Roraima (EdUFRR)
摘要：In the 1950s, the naturalist Balduino Rambo, anticipating the future of conurbation along the main roads and rail near Porto Alegre/RS, argued that a state tree farm (“horto florestal”) existing in the area was maintained as public green area. In this work we assessed the effect on the same tree farm today, when comparing results of surface temperature mapping obtained by image processing from the Landsat TM5 sattelite, with aerial photographs of the same area and with data from weather stations. We found that, on a summer day, surface temperatures into the “horto-florestal” were 8° C cooler than the surrounding urban industrial areas. Thus, Rambo's prophecies are already a reality, because besides from being a disrruption in the urban-industrial landscape, the “horto-florestal” is an island of freshness in the conurbation of the metropolitan area of Porto Alegre-RS.
