Canopy-scale Built-environment Characteristics and Urban Heat Island Effect in a Tropical Medium-sized City

Previous studies have found that built-environment characteristics in large cities produce important effects of the urban heat island (UHI) and know horizontal space affected by canopy microclimate ranges from about 30–200 m, but there are few medium-sized cities. Therefore, this study investigates canopy-scale their correlation with Chiayi city, a tropical, city. Under 100 m buffer size, 2D 3D factors such as green coverage ratio (GCR), building (BCR), floor area (FAR), sky view factor (SVF) were first analyzed then correlated UHI effect. The analyses repeated on 200 1000 scales compared to previous studies. It was more strongly under buffer. Moreover, GCR BCR had higher UHI, especially developing Regarding GCR, BCR, FAR, expected, coefficients increased 0.4 at 13:00 during day changed 0.2 00:30 night, whereas between SVF greatly different or calculation methods. scale effect methods recommended for further study.