Application Evaluation of Urban Heat Island Effect based on Data from New Generation Satellite Infrared Camera of China

In response to the limited application of domestic satellite data in urban heat island effect in China, this paper carries out surface temperature inversion and urban heat island intensity calculation based on HJ2 satellite infrared camera data of Beijing. The accuracy and application potential of HJ2 satellite in urban heat island effect are evaluated by comparing with the temperature inversion and heat island effect results of Landsat8 thermal infrared band during the same time phase. The research results show that the HJ2 satellite can accurately invert surface temperature and urban heat island intensity with its advantages of multiple spectral bands, high resolution, wide width, and strong timeliness. It has important significance for the development of surface temperature inversion algorithms, improving the independent application of satellite remote sensing in China, and reducing the dependence on foreign thermal infrared remote sensing data for urban heat island monitoring.