Ya Kang¹, Zhong Lu², Chaoying Zhao¹, Jin Woo Kim² and Yakun Han³, (1)Chang'an University, Xi'an, China, (2)Southern Methodist University, Dallas, TX, United States, (3)Wuhan University /Southern Methodist University, School of Geodesy and Geomatics/ Huffington Department of Earth Sciences, Dallas, TX, United States