1. School of Geography, University of Nottingham, Nottingham NG7 2RD, United Kingdom
2. School of Geography, University of Leeds, Leeds LS2 9JT, United Kingdom
3. Department of Computer Science, Loughborough University, Loughborough LE11 3TU, United Kingdom
4. Department of Civil and Environmental Engineering, University of Auckland, Private Bag 92019, Auckland, New Zealand
5. Department of Geography, Loughborough University, Loughborough LE11 3TU, United Kingdom