1 Chongqing Engineering Research Center for Remote Sensing Big Data Application, School of Geographical Sciences, Southwest University, Chongqing 400715, China. [email protected].
2 Department of Geography and Environmental Science, University of Reading, Reading RG6 6AB, UK.
3 Chongqing Engineering Research Center for Remote Sensing Big Data Application, School of Geographical Sciences, Southwest University, Chongqing 400715, China.
4 Department of Geography, University College London, London, WC1E 6BT, UK.