1. Faculty of Geosciences; Universiteit Utrecht; Utrecht; The Netherlands
2. Department of Geography, Environment and Earth Sciences; University of Hull; Hull; UK
3. Faculty of Civil Engineering and Geosciences; Delft University of Technology; Delft; The Netherlands
4. University of Hull; Hull; UK
5. State Key Laboratory of Urban and Regional Ecology, Research Centre for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing; China