The GNSS coordinate time series is affected by the hydrological loading (HYDL) in the surface elastic deformation information. This paper uses the CMONOC coordinate time series under the ITRF2014 framework and the MERRA2 hydrological loading model provided by IMLS to analyze the influence of China's regional HYDL on the GNSS coordinate time series. The results show that in the vertical component, the HYDL has a particularly significant impact on the GNSS coordinate time series. The maximum velocity can reach 3.52 mm/year, of which 37.1% of the stations are corrected by the HYDL, the velocity decreases, and 63.3% of the stations are corrected by the HYDL, the velocity value increases. The influence on the periodic term is mainly reflected in the annual amplitude and the annual phase. Among them, 82.4% of the stations are corrected by the HYDL and the annual amplitude is reduced, and the nonlinear amplitude is weakened. As for the annual phase, 22.5% of the stations is significantly reduced after the HYDL correction, and the remaining 77.5% of the stations is increased after the HYDL correction. This shows that the influence of HYDL on the annual phase of the GNSS coordinate time series cannot be ignored.
Analysis of the Vertical Coordinate Time Series in China Taking into Account the HYDL Under the ITRF2014 Framework
Lect. Notes Electrical Eng.
China Satellite Navigation Conference ; 2022 ; Beijing, China May 22, 2022 - May 25, 2022
China Satellite Navigation Conference (CSNC 2022) Proceedings ; Kapitel : 10 ; 105-112
2022-05-07
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
CMONOC coordinate time series , MERRA2 model , Vertical component , Velocity , Amplitude and phase Engineering , Communications Engineering, Networks , Signal, Image and Speech Processing , Aerospace Technology and Astronautics , Control, Robotics, Mechatronics , Computer Applications , Geography, general
Comparison of ITRF2014 station coordinate input time series of DORIS, VLBI and GNSS
Online Contents | 2016
|Comparison of ITRF2014 station coordinate input time series of DORIS, VLBI and GNSS
Online Contents | 2016
|The development of the GSFC DORIS contribution to ITRF2014
Elsevier | 2015
|