1. Department of Geography and Resource Management; Chinese University of Hong Kong; Shatin Hong Kong
2. Institute of Space and Earth Information Science; The Chinese University of Hong Kong; Shatin Hong Kong
3. Department of Geography; University of Cambridge; Cambridge UK
4. Department of Land Surveying and Geo-Informatics; Hong Kong Polytechnic University; Hung Hom Hong Kong
5. Department of Geoscience and Remote Sensing; Delft University of Technology; Delft Netherlands