1. School of Geography and Planning, Ningxia University, Yinchuan 750021, China
2. School of Engineering and Built Environment, Griffith University, Kessels Road, Brisbane, QLD 4111, Australia
3. Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites, National Satellite Meteorological Center (National Center for Space Weather), China Meteorological Administration, Beijing 100081, China