1. Key Laboratory of General Optical Calibration and Characterization Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
2. Science Island Branch, Graduate School of University of Science and Technology of China, Hefei, China
3. State Environmental Protection Key Laboratory of Satellite Remote Sensing, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
4. Netherlands Institute for Space Research (NWO), Utrecht, Netherlands