To benefit society by promoting the development and realization of Digital Earth
The 4th International Symposium on Digital Earth took place in Tokyo in March 2005. 345 delegates from 36 countries attended the symposium. The theme was "Digital Earth as a Global Commons". It ranged from visions on Digital Earth to geo-informatics, remote sensing, and wireless communication technologies as fundamentals for information infrastructures. There were also case studies on integrated systems and information sharing in applications for civil services and policy making support systems. The delegates shared key advances, innovative solutions and best practices in Digital Earth technologies, and enjoyed the exhibitions from 26 exhibiters showing the most advanced technologies related to Digital Earth.