1. School of Geography and Ocean ScienceNanjing University Nanjing China
2. Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing China
3. Department of Geophysical EngineeringMontana Tech of the University of Montana Butte Montana USA
4. Chair of Hydrology and River Basin ManagementTechnical University of Munich Munich Germany
5. Lancaster Environment CentreLancaster University Lancaster UK