Articles | Volume 372
Proc. IAHS, 372, 385–391, 2015
https://doi.org/10.5194/piahs-372-385-2015
Proc. IAHS, 372, 385–391, 2015
https://doi.org/10.5194/piahs-372-385-2015
 
12 Nov 2015
12 Nov 2015

Multiple sensors applied to monitorland subsidence in Central Taiwan

W.-C. Hung et al.

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Short summary
During 1992-2013, pumping of groundwater caused large-scale aquifer-system compaction and land subsidence in the Choshui River Alluvial Fan (CRAF) in Taiwan. The subsidence has already endangered the operation of Taiwan High Speed Rail (THSR). In this paper, we introduce the multiple sensors monitoring system to study the extent of subsidence in CRAF and its mechanism, including GPS (Global Positioning System), PSI (Persistent Scatterer Interferometry), leveling and multi-layer compaction monito