He joined UGA’s Department of Geography’s Atmospheric Sciences Program in January 2006. Prior to joining the UGA faculty, Dr. Shepherd spent 12 years as a research meteorologist in the Earth-Sun Division at NASA-Goddard Space Flight Center. Dr. Shepherd also served as a member of the United Nations World Meterological Organization steering team on aerosols and precipitation, and was contributing author on the 2007 IPCC Fourth Assessment Report. In 2004