Effects and Correction of Atmospheric Pressure Loading Deformation on GNSS Reference Stations in Mainland China

Table 2

Fitting parameters of annual and semiannual before and after correction.

SITE	Annual		Semiannual		—
	Amplitude (mm)		Amplitude (mm)		Velocity (mm/a)
	Uncorrected	Corrected	Uncorrected	Corrected	Uncorrected	Corrected
BJGB	4.51	1.96	0.55	0.29	1.40	1.81
YNLJ	6.66	5.86	2.12	1.53	1.78	2.71
HBZG	7.15	1.71	1.39	1.66	1.98	2.22
NMAG	4.54	1.50	0.82	0.22	−0.25	1.67
XZAR	3.13	1.60	2.35	1.88	2.51	2.72
XJSS	4.41	0.99	1.39	1.79	−0.44	0.36