*Adebayo Oluwaseun Ojo¹、Sidao Ni²、Haopeng Chen² (1.School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China; Department of Geosciences, Faculty of Science, University of Lagos, Akoka-Yaba, Lagos, Nigeria、2.State Key Laboratory of Geodesy and Earth’s Dynamics, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan, 430077, China)