In this enlightening episode, we invite Dr. Dow, a distinguished glaciologist, to talk about a fascinating yet largely underexplored facet of Antarctica's ice sheet dynamics – its subglacial hydrological systems. The contribution of ice sheets to sea level is significantly influenced by high-pressure water lubricating the base of the ice, thereby accelerating its flow into the ocean. Yet, the processes occurring beneath Antarctica's ice have largely remained shrouded in mystery, hindering our understanding of ice-sheet flow and its response to climate change.

Dr. Dow and his team have discovered extensive, dendritically organized subglacial hydrological systems that stretch up to 460 km from the ice-sheet interior to the grounded margin using advanced numerical modeling and geophysical data. He explains how these channels transport large vo ...