Dalei Hao^1,2, Min Chen¹, Ghassem Asrar³, Yelu Zeng⁴, Qing Zhu⁵, Jianguang Wen⁶ and Qing Xiao², (1)Pacific Northwest National Laboratory, Joint Global Change Research Institute, College Park, MD, United States, (2)RADI Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, China, (3)Pacific Northwest National Laboratory, Richland, WA, United States, (4)Carnegie Institution for Science, Stanford, CA, United States, (5)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (6)RADI, Chinese Academy of Sciences, Beijing, China