1. Department of Geomorphology, Faculty of Humanities, University of Mohaghegh Ardabili, Ardabil, Iran;
2. Department of Rangeland and Watershed Management, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran;
3. Department of Geomorphology, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran;
4. Department of Geotechnical Engineering, University of Transport Technology, Ha Noi, Vietnam;
5. Department of Geoinformation, Faculty of Geoinformation and Real Estate, Universiti Teknologi Malaysia (UTM), Johor Bahru, Malaysia;
6. Geographic Information Science Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam;
7. Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam