High-Resolution Elevation Model of Lop Nur Playa Derived from TanDEM-X

Table 2

Relative elevation differences of the two DEMs.

Site	InSAR elevation [m]	SfM elevation [m]	InSAR relative elevation [m]	SfM relative elevation [m]	Error [m]
Reference Zero Height	793.6	791.739	0	0	∖
NE Wall	800	799.177	6.4	7.438	-1.038
SW Wall	799.8	800.775	6.2	9.036	-2.836
SE Wall	797.4	795.837	3.8	4.098	-0.298
Northern Depression	793.6	790.307	0	-1.432	1.432
Southern Depression	795.8	791.679	2.2	-0.06	2.26