1. State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (LIESMARS) Wuhan University Wuhan China
2. Department of Earth Sciences, Ndata School of Climate and Earth Sciences Malawi University of Science and Technology Limbe Malawi
3. State Key Laboratory of Geological Process and Mineral Resources, Planetary Science Institute China University of Geosciences Wuhan China
4. School of Environmental Studies China University of Geosciences Wuhan China
5. Department of Earth Sciences, College of Earth, Ocean, and Environment University of Delaware Newark DE USA
6. Lantmäteriet, Lantmäterigatan 2C, Gävle Sweden