Guo Huadong is Director-General of the Institute of Remote Sensing and Digital Earth (RADI), Chinese Academy of Sciences (CAS), an Academician of CAS, a Fellow of the Academy of Sciences for the Developing World (TWAS), and an Academician of International Eurasian Academy of Sciences. He presently serves as President of the International Council for Science (ICSU) Committee on Data for Science and Technology (CODATA), Secretary-General of the International Society for Digital Earth (ISDE), and Editor-in-Chief of the International Journal of Digital Earth (IJDE) published by Taylor & Francis. He has over thirty years of experience in remote sensing, specializing in radar for Earth observation and remote sensing applications, and involving research on digital Earth since the end of the last century. He has been Principle Investigator for over twenty major national projects or programs in China, and Principle Investigator for seven international radar remote sensing projects. He also serves as Director of the International Center on Space Technologies for Natural and Cultural Heritage under the Auspices of UNESCO. He has published more than three hundred papers and fifteen books, and is the principal awardee of thirteen national and CAS prizes, one being “National Outstanding Expert”, awarded by the State Council of China.