1980-1990: Experiment Scientist (effectively PI) of NASA's Earth Radiation Budget Experiment 1990-2001: Instrument PI of the NASA EOS Investigation of Clouds and the Earth's Radiant
Energy System (CERES), with particular attention to providing the architecture of the CERES data production system, as well as instrument calibration
2001-2006: Head, NASA Langley Atmospheric Sciences Data Center, one of the EOS Distributed
Active Archive Centers
2006-2008: Project Manager, Data Stewardship Project, NOAA National Climatic Data Center 2008-Present: Unaffiliated Researcher on Earth science data management.