Demonstration of Time-Series InSAR Processing in Beijing Using a Small Stack of Gaofen-3 Differential Interferograms

Table 4

Cross-comparison results between GF-3 with Sentinel-1 deformation maps in the selected regions.

Area	Number of points	Mean DV of GF-3 (mm/y)	Mean DV of S1 (mm/y)	Abs. mean of DV difference (mm/y)	Standard deviation of DV difference (mm/y)
A	3036	-7.8	-5.6	2.18	2.39
B	1709	-54.2	-72.3	18.1	5.51
C	1615	-52.3	-69.1	16.8	2.97
D	1050	-17.7	1.9	19.6	2.11
E	1063	-17.6	2.1	19.7	1.64

DV: deformation velocities.