1. Department of Geography and Resource Management; The Chinese University of Hong Kong; Shatin Hong Kong, China
2. Shenzhen Research Institute; The Chinese University of Hong Kong; Shenzhen 518057 China
3. Department of Atmospheric, Oceanic and Earth Sciences; George Mason University; Fairfax Virginia USA
4. State Key Laboratory of Severe Weather; Chinese Academy of Meteorological Sciences; Beijing 100081 China
5. Center for Geographic Analysis; Harvard University; Cambridge Massachusetts USA
6. World History Center; University of Pittsburgh; Pittsburgh Pennsylvania USA