1. School of Geospatial Engineering and Science, the Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), and the Key Laboratory of Comprehensive Observation of Polar Environment, Ministry of Education, Sun Yat-sen University, Zhuhai, China
2. Science and Technology Branch, Environment and Climate Change Canada, Toronto, ON, Canada
3. Remote Sensing Technology Institute, German Aerospace Center (DLR), Bremen, Germany