Ziheng Sun¹, Liping Di², Hui Fang², Annie Bryant Burgess³ and Navya Singh⁴, (1)George Mason University Fairfax, Center for Spatial Information Science and Systems, Fairfax, VA, United States, (2)George Mason University, Fairfax, VA, United States, (3)Federation of Earth Science Information Partners, Portland, OR, United States, (4)Bennett University, Delhi NCR, India