Abstract Based on continuous GNSS data from crustal movement observation network of China (CMONOC), we select the coordinate time series of 25 stations in Yunnan province to study the influence of mass loading on noise model. After calculating the displacements induced by continental water storage, non-tidal atmospheric and non-tidal oceanic loading, we analyze the different combinations of noise models and ascertain trend uncertainties using maximum likelihood estimation. Then, we establish the best noise model before and after environmental loading correction of all GNSS stations, and estimate the velocity uncertainty. We find that nearly all the coordinate components are characterized by flicker noise plus white noise(FN+WN), the best noise model can be changed by environmental loading correction, and the velocity uncertainty of 72%,80%,68% stations can be decreased with environmental loading correction for E,N,U direction, respectively.
XU Xiwen,ZHANG Zhiwei,LI Chenfeng et al. Research on Environmental Loading Impact on Noise Characteristics of GNSS Coordinate Time Series[J]. jgg, 2021, 41(12): 1219-1222.
XU Xiwen,ZHANG Zhiwei,LI Chenfeng et al. Research on Environmental Loading Impact on Noise Characteristics of GNSS Coordinate Time Series[J]. jgg, 2021, 41(12): 1219-1222.
