Deformation Monitoring and Spatiotemporal Evolution of Mining Area with Unmanned Aerial Vehicle and D-InSAR Technology

Figure 9

Spatial-temporal evolution of land surface subsidence beneath thick alluvium deposits: (a) May 11, 2021–May 23, 2021; (b) May 23, 2021–June 4, 2021; (c) June 16, 2021–June 28, 2021; (d) June 21, 2021–July 3, 2021.

(a)

(b)

(c)

(d)