1. Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographical Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
2. Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, Kentucky 40511, United States
3. Department of Earth & Environmental Sciences, University of Kentucky, Lexington, Kentucky 40506, United States
4. Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina 29201, United State
5. Department of Geosciences, Virginia Tech, Blacksburg, Virginia 24061, United States
6. Earth Systems Science Division, Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States