Professor Xue’s research has focused on the development of quantitative methods for aerosol optical depth retrieval, thermal-inertia modelling, and the integration of multi-sensor satellite observations for monitoring atmospheric composition and land-surface processes. Through sustained involvement in international collaborative research programmes, he has contributed to improved characterisation of long-term aerosol variability over China and Central Europe, the development of the CHINA Collection 2.0 aerosol optical-depth dataset, and the post-calibration of Advanced Very High Resolution Radiometer (AVHRR) data records for climate applications. His selected works address the generation of global hourly aerosol optical-depth datasets from geostationary satellite observations, long-term aerosol optical-depth retrieval from AVHRR data over land, synergistic retrieval and development of the CHINA Collection 2.0 aerosol dataset, AVHRR post-calibration using SeaWiFS observations and pseudo-invariant targets, and advanced thermal-inertia modelling. Collectively, these contributions reflect a sustained research programme connecting satellite remote sensing methodology with the quantitative assessment of air quality, atmospheric change, climate variability, and sustainable environmental management across Eurasia.