Monitoring Analysis of Urban Subsidence in Northern Henan Province Based on TS-InSAR Technology

Table 4

Changes of urban groundwater level in northern plain of Henan Province (unit (m)).

Water level change	2018	2019	2017–2019	1980–2019
Anyang	0.34	−0.72	−0.38	−2.09
Hebi	−0.35	−0.26	−0.61	—
Puyang	−0.08	+0.07	−0.01	−8.72