Chinese Ministry of Science and Technology / Advanced Microwave Sounding Unit / Nanjing University / National Science Foundation / European Centre for Medium-range Weather Forecasts / and China / Florida State University / U.S. Joint Center for Satellite Data Assimilation / National Center for Environmental Prediction / National Oceanic and Atmospheric Administration / Ministry of Finance / Department of Earth / Ocean / and Atmospheric Sciences / MetOp / Center of Data Assimilation for Research and Application / /