Articles | Volume 372
12 Nov 2015
 | 12 Nov 2015

Multiple sensors applied to monitorland subsidence in Central Taiwan

W.-C. Hung, C. Wang, C. Hwang, Y.-A. Chen, H.-C. Chiu, and S.-H. Lin


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Latest update: 25 Sep 2023
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