不同下垫面条件下城区温湿度变化规律研究

城市化的快速发展改变了城市范围内下垫面条件,并进而影响城市微气候变化,城市的空气温湿度受天气和下垫面的影响较大。为研究和分析不同天气条件下城市微气候的变化规律,选择湖北省天门市某中学校园作为典型城区研究对象,选择草地、树林、水面、水泥地、路面等五种主要活动区域类型,于2018年6月26日~7月4日的不同天气条件下开展持续监测,通过实地对距离地面1m、2m、3m高度大气的温湿度数据监测,定量分析不同活动区域类型的温湿度变化规律。结果表明,城市中不同类型的活动区域的局地气候具有明显差异;不同下垫面条件下温湿度随测量高度有一定的差异;不同下垫面条件下,环境气候条件对其温湿度影响规律不同。由此说明,在城市规划中,对不同下垫面的合理规划和设计能够有效解决城市热岛效应问题。

The air temperature and humidity of the cityare greatly affected by the weather and the underlying surface. Therefore, atthe main campus of huazhong university of science and technology, chooses the f ive main types of activity areas of square, grassland, woodland, highway and lake.On April 27 and April 29, 2018, the temperature and humidity data in the atmosphere of 1m, 2m and 3m are monitored on the ground during the period from 8:00 to 21:00 in different weather conditions, quantitative analysis of temperature and humidity differences in different activity area types.The results showed that,Firstly, there are obvious differences in the local climate of different types of activity areas in cities. Second, with different underlying surface conditions, temperature and humidity vary with height. Third,over different underlying surface conditions, the inf luence of environmental and climatic conditions on temperature and humidity is different.Finally, the rational planning and design of different underlying surfaces can effectively solve the urban heat island effect problem in urban planning.