Analysis of colored noise and environmental loading in northeast region of CMONOC coordinate time series

The Hector software is used to calculate the time series observation data of 16 continuous stations of Crustal Movement Observation Network of China (CMONOC) in Northeast China in the past 10 years, obtain the time series data of the coordinate residuals of the continuous stations, and then determine the optimal noise model, and finally get the results based on colored noise and environmental load the corrected velocity field. The results show that white noise (WN), flicker noise (FN) and power-law noise (PL) are mainly present in CMONOC coordinate time series data in Northeast China; the optimal noise model in the north (N) and up (U) directions is WN+FN; the optimal noise model in the east (E) direction is WN+PL. Taking into account the influence of colored noise and environmental load, the average velocity of movement in the N direction of the northeast region’s CMONOC based on the ITRF14 framework is −13.003 mm/a, the average velocity of movement in the E direction is 27.020 mm/a, and the average speed of upward movement in the U direction is 0.528 mm/a, and the overall uplift trend.