1. Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Hong Kong SAR 999077, China
2. Atmospheric Research Center, Guangzhou HKUST Fok Ying Tung Research Institute, Guangzhou 511458, China
3. Department of Geography and Resource Management, Chinese University of Hong Kong, Hong Kong SAR 999077, China
4. Department of Computer Science, University of Maryland, College Park, Maryland 20742, United States
5. Department of Mathematics, The Hong Kong University of Science and Technology, Hong Kong SAR 999077, China
6. Department of Computer Science and Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR 999077, China