Abstract:Taking the main urban area of Hefei as an example, this paper uses meteorological observation data, satellite remote sensing data, geographic information data and other data to classify the ventilation potential of the main urban area of Hefei by calculating urban ecological parameters such as sky openness and surface roughness, and then we give suggestions on the construction of ventilation corridors. The results show that the heat island effect is serious in Hefei Economic and Technological Development Zone and Shuangfeng Development Zone. The sky view factor in the central area is poor with most areas below 0.5, and the surface roughness along the South Feihe River is lower, but the surface roughness on both sides is higher. The surface ventilation potential is moderate in most area of the region, except the higher ventilation potential in the southeast area near Chaohu Lake and the coast of the South Feihe River. The ventilation potential in the building area and the northwest area of this region is poor. Based on the wind direction rose diagram and the analysis of urban space thermal environment, we construct six ventilation corridors with four longitudinal and two horizontal lines preliminarily constructed.