Abstract:Aiming at the problem that the regional crustal vertical motion model cannot be established for a small number of stable level points, we propose a method for establishing a regional crustal vertical motion model using GNSS and level fusion. At first, some stable level points and GNSS points are used to found the original vertical crustal movement model. Then, the final points are chosen by the analysis of the difference between the result of the original model and the result for GNSS points and level points. Finally, the vertical crustal movement model is fitted with the function. An actual GNSS data and level data set of Shandong province is employed to test the new algorithm. It is shown that the new method overcomes the shortcoming that the vertical crustal movement model is not founded with few level points, and also that it improves the accuracy of the vertical crustal movement model.
WANG Mengting,NIE Jianliang,TIAN Jie et al. The Vertical Crustal Movement Model of the Local Zone Established by GNSS and Level Data[J]. jgg, 2019, 39(9): 896-899.