1. National Centre for Remote Sensing Technology, Space and Aeronautics Research Institute, King Abdulaziz City for Science and Technology, Riyadh 11442, Saudi Arabia
2. Faculty of Science and Technology, Engineering Building, University of Lancaster, Lancaster LA1 4YR, UK
3. Faculty of Geosciences, University of Utrecht, Utrecht 3584 CS, The Netherlands
4. School of Geography, Archaeology and Palaeoecology, Queen’s University Belfast, Belfast BT7 1NN, Northern Ireland, UK
5. School of Geography and Environment, University of Southampton, Southampton SO17 1BJ, UK