Layout of Ji-mei Cross-sea Bridge GPS Control Network, Vertical Control Network and Route of Leveling Based on Google Earth

摘要

Google Earth is virtual globe software, it arranges the satellite photography, aerial photography and GIS in a threedimensional model of the Earth. Users can visit the three-dimensional features and get the latitude, longitude elevation data conveniently. In addition, users also can customize icons, lines and roaming mode in a free way. cross-sea bridge is a sea channel which connects the Xia-men island with the outside Ji-mei district. After the analysis the status of the coverage and reconnaissance, taking into account that layout of the GPS control network, vertical control network and route of leveling based on Google Earth is more convenient, intuitive, three-dimensional distinguishable, the paper combined the traditional theory of the technology with Google Earth to lay Ji-mei cross-bridge GPS control network, vertical control network and route of leveling adopting measures of hierarchical management, standardization and diversity of the icon of the information collection and marking, achieved good as well. It had a certain guiding function in laying ground GPS control network, vertical control network, the route leveling and filed data acquisition.