Datagov Opendata Platform

This dataset provides basic information on the GNSS continuous fixed stations belonging to the Water Resources Agency in subsided areas across Taiwan. The agency currently operates a total of 33 GNSS fixed stations, including several primary schools and junior high schools. The equipment at the GNSS fixed stations mainly includes GNSS receivers, network systems, temperature control cooling systems, surge protection devices, uninterruptible power supply systems with backup batteries, and GNSS antennas. GNSS continuous fixed stations provide 24-hour all-weather observation, coverage of satellite constellations globally, and are not affected by weather or time, enabling the provision of daily elevation monitoring results. The time resolution of the GNSS continuous fixed station is one day. As the GNSS continuous fixed station provides the elevation changes of a single station, to measure the surface changes of an entire area, spatial interpolation with data from multiple stations is required. Currently, the Water Resources Agency still uses leveling elevation detection or radar interferometry (InSAR) for large-scale spatial measurement to obtain surface changes in a planar manner.