title: Climate change. Modeling ice-sheet flow.
authors.affiliation: Department of Geosciences, and Earth and Environmental Systems Institute, Pennsylvania State University, University Park, PA 16802, USA. rba6@psu.edu
authors.forename: Richard B
authors.initials: RB
authors.lastname: Alley
authors.forename: Ian
authors.initials: I
authors.lastname: Joughin