Professor Dennis L. Hartmann received his BS degree in Mechanical Engineering from the University of Portland, and his PhD in Geophysical Fluid Dynamics from Princeton University. After postdoctoral appointments at McGill University and the National Center for Atmospheric Research, he joined the faculty of the University of Washington, where he is currently an emeritus professor in the Department of Atmospheric and Climate Sciences. He is a member of the U.S. National Academy of Sciences. Professor Hartmann's research interests include dynamics of the atmosphere, atmosphere-ocean interaction, climate feedback processes and climate change. His primary areas of expertise are atmospheric dynamics, radiation and remote sensing, and mathematical and statistical techniques for data analysis.