Ilha De Calor Urbana Em Cidade De Pequeno Porte E a Influência De Variáveis Geourbanas

Abstract

ABSTRACT:The purpose of the given essay was to render analysis upon urban heat islands (UHI) in its temporal and spatial variability held in Iporá -State of Goias and to ascertain the urban-geographical variables towards UHI scrutinization. Therefore, eight thermo-hygrometers were installed over urban area of Iporá. As per the data analysis, a multiple linear regression technique was held. The accrued results highlighted that Ibiporá heat island city feature certain discrepancies between spatial and temporal settings from other big cities. The intensities and thermal patterns tend to be smaller. It is also noteworthy the following: 1-The discrepancies analysis and thermal patterns between the collection points revealed that UHI were frequent from 0,5º and 1ºC, totaling 76% from the recorded events during all timeframe. 2 -The UHI patterns were similar during the day and night. The heat islands <2ºC occurred under the same proportion during the day and night. 4 -The heat island peak (ICUmax) value was 3,5ºC, peaking five times. 5 -The NVDI and IU variables were the ones which mostly added in order to attest the UHI peak. 6 -It was observed that an area located in the Southwest of Iporá city -the downtown, showed the highest UHI peak on a frequent basis. 7 -It was observed that the bottom-valley areas showed lower thermal values, which indicates cold air drainage. 8 -During UHImax event, it was found that >1ºC UHI classes had an area of 14,91km2, which corresponds to 90% of the urban area.

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