The main study areas are Chinese and global cold and arid regions. To serve the terrestrial surface science research for cold and arid regions, it focuses on the quantitative remote sensing land surface process and integrated methodology. The major research disciplines include quantitative remote sensing retrieval of biophysical and land hydrological parameters and development on the high-resolution multi-source remote sensing land surface data assimilation system; setting up a basic decision-making support system in the inland river basins based on the universal water-land-atmosphere-ecology-human coupled model and to develop engineering information systems and decision support system in cold regions; carrying out data science research in cold and arid regions and providing the scientific data services.