Abstract
Earth observation technologies can be widely used in such domains as territorial planning and management, urban development, precision agriculture, intelligent transportation. As a member of the Inter-governmental Earth Observation Consultative Organization, China's earth observation system is an indispensable component of globe earth observation systems. The development of China's earth observation satellites can contribute to globe earth observation system. The general situation and performance parameters of China's main running satellites for earth observation like meteorological satellites, resource satellites, marine satellites, environment and disaster reduction satellites, and Beijing-1 small satellite are illustrated. The applications of China's earth observation satellites are analyzed according to various domains such as nature disaster early warning and monitoring, marine monitoring, geographic surveying. The construction of China's earth observation system is a key element of globe spatial information technology infrastructure. Its development and improvement certainly strengthen science and technology support level of human observing ability and earth system science enormously. It provides the important technology support to global environmental change research, specially the influence of humanities factor to global change.
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