1. Department of Geomatics, National Cheng Kung University, Tainan, Taiwan;
2. Center for Space and Remote Sensing Research, National Central University, Taoyuan, Taiwan;
3. Division of Geodetic Science, School of Earth Sciences, Ohio State University, Columbus, Ohio, USA;
4. Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan, China;
5. Geoscience Australia, Symonston, ACT, Australia;
6. Department of Civil Engineering, American University of Sharjah, Sharjah, United Arab Emirates