Xiangqian Wu is a General Physical Scientist with the National Environmental Satellite, Data, and Information Service (NESDIS), National Oceanic and Atmospheric Administration (NOAA). He leads the agency’s calibration and validation for the Advanced Baseline Imager (ABI) on Geostationary Operational Environmental Satellite (GOES), the Imager and Sounder on the earlier generation of GOES, and the Advanced Very High Resolution Radiometer (AVHRR) on the Initial Joint Polar System (IJPS) between NOAA and EUMETSAT. For a brief period, he also led the calibration and validation of the Ozone Mapping and Profiler Suite (OMPS) on Suomi National Polar-Orbiting Partnership (S-NPP). Before joining NOAA in 2002, he was a scientist at the University of Wisconsin—Madison and the University of Colorado—Boulder, conducting a variety of research projects using weather satellite data. He received a B.S. degree in geography from Beijing Normal University in 1982, and M.S. (1986) and Ph.D. (1990) degrees (both in Meteorology) from the University of Wisconsin—Madison. He is a member of the Global Space-Based Inter-Calibration System (GSICS), a major component of the World Meteorological Organization (WMO) Information System (WIS) infrastructure, and served as the founding chair of its Research Working Group. He received one Gold Medal, one Silver Medal, three Bronze Medals, and two Administrator’s Awards for his service to NOAA.