夏季里去过乡村、海边或山区的都市人,一定都有这样的感觉:城区实在太热了。过去解释“都市为何比乡村热”,只是考虑到城市的“热岛效应”问题。的确,由于城市的现代化建设,大量高楼、水泥路等构成的都市下垫面,其热容量很低,经太阳照射,温度很快升高,从而使得四周的气温也升高,市区温度自然比郊区高,这就是“热岛效应”。越是发达的都市,其“热岛效应”越强。 People who have been to the countryside, the seaside or the mountains during the summer must feel that the city is too hot. In the past, explaining why urban cities are hotter than rural areas only takes into account the urban “heat island effect.” Indeed, due to the modernization of the city, a large number of high-rise buildings, cement roads and other urban underlying surface, the heat capacity is very low, the sun, the temperature rises quickly, so that the ambient temperature also increased, the natural temperature than urban Suburban high, this is the “heat island effect.” The more developed cities, the stronger the “heat island effect”.