1. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, China
2. Satellite Environment Protetion Key Laboratory of Satellite Romote Sensing, Ministry of Ecology and Environment, Beijing, China
3. Department of Geosciences, University of Arkansas, Fayetteville, AR, USA
4. China Centre For Resources Satellite Data and Application, Beijing, China
5. Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, China