Ian Joughin is a glaciologist at the UW’s Applied Physics Laboratory and the Polar Science Center, as well as an affiliate professor in Earth and space sciences. His research focuses primarily on the surface motion and topography of ice fields. Currently, he is working to determine how the flow of the Greenland and Antarctic ice sheets will contribute to current and future rates of sea level change. His research involves working with satellite data to measure the velocity of ice streams and outlet glaciers, conducting ground- and airborne-based field work to obtain additional ice flow measurements, and using these data in conjunction with ice-sheet models to understand the physics that control ice flow.