2003•Geography and Geo-Information ScienceRequires access

Study of Global Change Based on Digital Earth

Gong Huili

Abstract

The study of Global Change is the most prevailing research in geoscience. The goal of the research is to describe the process of Global Change and the causes for such change. Through the information extraction and analysis of Global Change, we can reveal the rule of Global Change and its influences on the human beings. We can then predict the tendency of Global Change. Digital Earth is an enormously complex open system based on Information Highway and SDI. In this paper, the concept and characteristics of both Global Change and Digital Earth are discussed. The applications of Digital Earth to the study of Global Change are analyzed. Digital Earth not only is a technical framework of Global Change study, but also can accelerate the development of the study of Global Change via GSDI, 3S technologies, Web technologies, virtual reality technologies,and so on.

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Key concepts: Global change, Digital Earth, Earth observation, Earth (classical element), Computer science, Environmental change, Earth system science, Earth science