What I Do I currently hold the title “Distinguished University Professor” in the Department of Atmospheric and Oceanic Science at the University of Maryland, which I chaired before. Before coming to Maryland, I had an endowed chair (Robert E. Lowry Chair in Meteorology) at the University of Oklahoma (1998-1999). From 1987-1997 I was Director of the Environmental Modeling Center of the National Centers for Environmental Prediction (NCEP) in Camp Springs, Md. All the computer models for the National Weather Service and private forecasts are generated at this center. During my tenure there we improved the quality of national weather forecasts: currently a 3-day forecast is as accurate (on the average) as a 1-day forecast was 20 years ago! From 1979 to 1986 I was a Senior Scientist and then Branch Head at the NASA Goddard Space Flight Center.