1. National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing, China
2. Key Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
3. Department of Environment and Society, Quinney College of Natural Resources, Utah State University, Logan, UT, USA
4. Natural Resources Aero-Geophysical and Remote Sensing Centre, China Geological Survey Bureau, Beijing, China