This thesis provides multidisciplinary perspectives on changes in global mass transports, especially in the global water cycle. It investigates the current time-varying states regarding global sea level, terrestrial water storage, mountain glacier mass and highland crustal deformation, drawing on fifteen years of satellite gravimetry observation to do so. The results reveal tremendous changes in various aspects of the global environment, which are due to both anthropogenic and natural factors. Further, the research presented here sheds new light on underlying connections and mechanisms in the global mass transport system. 

Dr. Shuang Yi is a Postdoctoral Researcher at Hokkaido University, his research area includes mass transport, mainly glaciers and lakes, and tectonic processes in the Tibetan Plateau based on geodetic observations such as GRACE, ICESat and GPS, and methods to recover GRACE signals and to reduce the leakage effect. He has published more than 20 research papers in this area. He won the Excellence Prize of President Scholarship for Postgraduate Students of UCAS (University of Chinese Academy of Sciences), and his PhD thesis was selected as the 100 excellent doctor degree dissertations in CAS (Chinese Academy of Sciences) in 2017.

Introduction.- Data.- Mass inversion method of GRACE data.- Global sea level change.- Terrestrial water storage change in Asia.- Glacial and tectonic mass change in High Mountain Asia.- Conclusion.