Advanced Remote Sensing, 2nd Edition

7.5. Fusion of land surface temperature products

Currently, the remote sensing data used in the retrieval of LST products are generally located in the thermal infrared spectral range. The thermal infrared LST retrieval algorithm is only effective during clear sky conditions. These products cannot reach the full surface coverage because of cloud coverage. More than 60% of MODIS LST products are affected by cloud cover (Chen et al., 2011). Dynamic monitoring of resource environments at regional or global scales requires complete and continuous LST information, while existing LST products cannot meet the requirements of these applications. In contrast, microwave radiation is much less affected by the atmosphere and can penetrate clouds and reach ...