1. State Key Laboratory of Remote Sensing Science Jointly Sponsored by Beijing Normal University and Institute of Remote Sensing and Digital Earth of Chinese Academy of Sciences Beijing China
2. Beijing Engineering Research Center for Global Land Remote Sensing Products Institute of Remote Sensing Science and Engineering Faculty of Geographical Science Beijing Normal University Beijing China
3. Nicholas School of the Environment Duke University Durham NC USA
4. Institute of Global Change and Earth System Science Beijing Normal University Beijing China
5. Department of Geographical Sciences University of Maryland College Park MD USA