1. School of Geomatics Science and Technology, Nanjing Tech University, Nanjing, China
2. Department of Earth Sciences, Southern Methodist University, Dallas, TX, USA
3. School of Mining and Geomatics Engineering, Hebei University of Engineering, Handan, China
4. College of Geological Engineering and Geomatics, Chang’an University, Xi’an, China
5. Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
6. Earth Observatory of Singapore, Nanyang Technological University, Jurong West, Singapore
7. School of Geodesy and Geomatics, Wuhan University, Wuhan, China