Changyong Cao
oversees the satellite instrument calibration and data assimilation branch
which is responsible for the instrument performance and data quality for all
operational polar-orbiting and geostationary satellites at NOAA. He leads the
STAR radiance science team, Visible Infrared Imaging Radiometer Suite (VIIRS)
instrument calibration/validation team, and co-lead the GOES Advanced Baseline
Imager (ABI) calibration working group (CWG). He developed the Simultaneous
Nadir Overpass (SNO) intersatellite calibration method, which has become one
of the cornerstones of the WMO/Global Space-based Intercalibration System
(GSICS), widely used for on-orbit instrument performance evaluation for Earth
observation satellites, and for long-term time series and climate change
detection studies.
Dr. Cao has broad research interests in satellite instrument performance
characterization, exploration of novel uses of satellite observations and new
technologies. He is advisor to the WMO/GSICS, and former chair of the CEOS/WGCV
(Committee on Earth Observation Satellites/Working Group on Calibration/Validation).
He is the recipient of three gold and one silver medals from the Department of
Commerce and NOAA for his achievements. Before joining NOAA, Changyong was a
senior remote sensing scientist with a leading aerospace company supporting
NASA missions.