Detection of the Near-surface Freeze/thaw State through the Synergy Use of Microwave and Thermal Infrared Remote Sensing Data

Tianjie Zhao, Chinese Academy of Sciences, Institute of Remote Sensing and Digital Earth, Beijing, China, Tongxi Hu, The Ohio State University, School of Environment and Natural Resources, Columbus, United States and Jiancheng Shi, RADI Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, China