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Establishment of a national GPS network as national
geodetic control network: GPS surveying on one of the
Nansha Islands. |
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Positioning the origin of Changjiang River by the means
of GPS technology. |
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GPS Survey at the peak of Everest. |
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| NGCC is responsible for the design, organization, execution and quality control of major national geodetic projects, for maintenance and updating of national geodetic database, for providing GPS referencing datum, height datum, planimetric datum and gravity datum, for maintenance of national GPS geodetic referencing framework, for providing service on static and kinermatic GPS positioning data, precise ephemeris, Earth-centered coordinator system and geoid. |
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In the geodetic database stored is a total of over
2,000,000 pieces of gravity results, over 800 GPS
points, 150,000 triangulation points and First order and
Second Order leveling results of over 229,000 km. |
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