Abstract:Based on data from the Crustal Movement Observation Network of China in northeast China from 2005 to 2018, we use triangulation to construct the baseline time series of adjacent regions, and conduct temporal and spatial characteristics analysis from three aspects: spectrum characteristics, residual common mode errors, and spatial relative motion rules. The results show that the periodic effects of each component of the baseline are mainly annual and semi-annual cycles. The magnitude of the residual common mode error between baselines is about 1.14 mm horizontally and a maximum of 3.17 mm vertically. The average random effect is mainly in the east and west directions. In terms of spatial scale, the baselines that are shortened year by year are mainly in the direction of east by north, especially in the south-north component of the baseline, and the distribution characteristics of baseline length are obviously shortened in both offshore and inland regions.
JIANG Guangwei,WANG Bin,CHEN Xiongchuan et al. The Relative Spatial Relation and Random Effects of Regional Reference Frame in the Northeast of China[J]. jgg, 2021, 41(6): 606-611.