1. State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing Science and Engineering, Faculty of Geographical Science, Beijing Normal University, Beijing P.R. 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 P.R. China
3. Dinghui Wu Is with the National Geomatics Center of China, Beijing China
4. Yuanlin Liu Is with Beijing Research Institute of Uranium Geology, National Key Laboratory of Remote Sensing Information and Imagery Analyzing Technology, Beijing China