BEIJING, Nov. 18 (Xinhua) -- A big Earth data system was launched at the 1st China Digital Earth Conference that opened Monday in Beijing.

The China Remote Sensing Satellite Ground Station (RSGS) under the Aerospace Information Research Institute has successfully tracked and received 6-track of data from the newly launched Earth observation satellite Gaofen-7 (or GF-7) from November 4 to 6. A total of 616.6 GB of data was received.

A review meeting was held at AIR on September 2 to discuss the construction of the National Earth Observation Data Center (NODA). Prof. LI Guoqing, head of the center, gave a detailed report on NODA’s 2020-2025 development and implementation plan.

In Changchun and Songyuan, two northeastern cities of China, AIR scientists has led a series of satellite-air-ground-based experiments from June 17 to August 25, obtaining high-quality integrated in-situ observation dataset over the areas, which can be used to assess the quality of common remote sensing products based on China’s land observation satellites.

Scientists from the CAS Key Laboratory of Quantitative Remote Sensing Information Technology with the Aerospace Information Research Institute (AIR) carried out a field measurement campaign in the Golmud area of Qinghai Province from August 7 to August 17, 2019.

BEIJING, June 27 (Xinhua) -- Chinese researchers have improved a diagnostics system for nuclear fusion devices, paving the way for producing controlled thermonuclear fusion power in the future.At the temperatures required for fusion reactions, the matter can only exist in the plasma state, free negative electrons and positive nuclei. Some fusion reactors use a magnetic field to confine hot plasma for fusion actions to take place.