1. Key Lab of Geographic Information Science of the Ministry of Education, School of Geographic Sciences, East China Normal University, Shanghai 200241, China
2. Institute of Eco-Chongming, 3663 N. Zhongshan Road, Shanghai 200062, China
3. CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
4. School of Earth Science, Zhejiang University, Hangzhou 310027, China
5. Department of Environmental Science and Engineering, Fudan University, Shanghai 200043, China