Possible Continuous Vertical Water Leakage of Deep Aquifer: Records from a Deep Well in Tianjin Province, North China

Figure 10

Subsidence recorded by 4 GPS stations (JIXN, TJBD, TJBH, and TJWQ) within one GPS station (HECX) adjacent to the Tianjin City from the year 2011 to 2020 [37].