Spatially Continuous and High-Resolution Land Surface Temperature Product Generation: A review of reconstruction and spatiotemporal fusion techniques

Remotely sensed land surface temperature (LST) with spatial continuity and high spatiotemporal resolution (hereafter referred to ashigh resolution) is a crucial parameter for studying the thermal environment and has important applications in many fields. However, adverse atmospheric conditions, sensor malfunctioning, and scanning gaps between orbits frequently introduce spatial discontinuities into satellite-retrieved LST products. For a single sensor, a tradeoff occurs between temporal and spatial resolutions; therefore, it is almost impossible to obtain images in high resolution.