Dr. Poul Christofferson is a researcher in glaciology at the University of Cambridge, UK. His research focuses on ice sheet dynamics, specifically on ice sheet interactions with the atmosphere and oceans. The research spans scales, from whole glaciers and ice sheets to micro-scale studies of processes observable in a borehole. One strand of his research group is developing observational understanding of Earth's glaciated environment using autonomous drones and radar systems, seismology and records from boreholes drilled to the base of fast-flowing glaciers; another strand integrates those observations as constraints for numerical models, thereby making models better.

As a member of the TIME project, Christofferson and team will utilize a variety of techniques such as radar and seismic analysis to understand the margins of the Thwaites Glacier, investigating what controls its width and speed.