GUO Huadong is a Professor of the Chinese Academy of Sciences (CAS) Aerospace Information Research Institute, an Academician of CAS, a Foreign Member of Russian Academy of Sciences, a Foreign Member of the Finnish Society of Sciences and Letters, and a Fellow of The World Academy of Sciences (TWAS). He presently serves as Honorary President of International Society for Digital Earth (ISDE), Member of UN 10-Member Group to support the Technology Facilitation Mechanism for SDGs, Director of the International Center on Space Technologies for Natural and Cultural Heritage under the Auspices of UNESCO, Science Committee Member of the Integrated Research on Disaster Risk Programme, Chair of Digital Belt and Road Program, and Editor-in-Chief of the International Journal of Digital Earthand Big Earth Data. He served as President of Committee on Data, President of ISDE, and Chairman of International Committee of Remote Sensing of Environment. He specializes in remote sensing, radar for Earth observation, and Digital Earth science. He is the chief scientist of the Big Earth Data Science Engineering Program of CAS Strategic Priority Research Program and Principle Investigator of Moon-based Earth Observation Project of National Natural Science Foundation of China. He has published more than 500 papers and 19 books, and is the awardee of 17 domestic and international prizes.