GGOS: The Organization and System Introduction The two meanings of GGOS The science rationale for GGOS GGOS: The Organization Current structure of GGOS ... Future structure of GGOS ... Links and relations of GGOS ... GGOS: The System The three pillars ... The challenges ... The GGOS Infrastructure Contributing infrastructure ... Levels of infrastructure ... GGOS: The Applications Mass Transport GGOS and Geohazards |
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Infrastructure contributing to GGOS. The combined infrastructure allows the determination and maintenance of the global geodetic reference frames, and the determination of Earth's gravity field and rotation. The ground networks and navigation satellites (currently in particular GPS) are crucial for maintaining the reference frame required for high accuracy positioning. In particular, they allow the monitoring of volcanoes, earthquakes, tectonically active regions and landslide-prone areas. The Low Earth Orbit (LEO) satellites monitor sea level, ice sheets, water storage on land, atmospheric water content, high-resolution surface motion, and variations in the Earth's gravity field. The latter are caused, to a large extent, by regional and global mass transport in the hydrological cycle. |
The levels of infrastructure ...
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