用流动观测数据计算城市热岛强度的数学模型

A mathematic model for calculating urban heat island intensity using moving observation data

为了解决用流动观测数据计算城市热岛强度过程中的同时性修订问题,克服流动观测方法获取数据非同时性的不足,在分析城市热岛强度计算方法的基础上,通过同时性修订,提出1个计算流动观测时段内任一时刻热岛强度的数学模型。结合重庆市热岛效应的流动观测,对模型的参数进行解释,并将该模型计算得到的不同时刻热岛强度进行对比。研究结果表明:该模型能很好地解决用流动观测数据计算城市热岛强度过程中的同时性修订问题。

In order to solve the synchronous modifying problem in the process of calculating urban heat island （UHI） intensity using moving observation data and to overcome the deficiency of moving observation data which are asynchronous, a mathematic model was proposed by analyzing the method of calculating UHI intensity in detail and synchronous modifying, which can be used for calculating the heat island intensity at any time during the observation period. Combined with a moving observation test carried out for UHI study in Chongqing, the parameters of the mathematic model were explained, and heat island intensities at different time calculated by the model were compared. The results show that the synchronous modifying problem in the process of calculating UHI intensity using moving observation data can be solved effectively by the mathematic model.