Beneath the ice: Satellites help map Antarctica's subglacial surface like never before

Researchers have created the most detailed map to date of Antarctica's subglacial topography using satellite imagery and a modeling technique called Ice Flow Perturbation Analysis (IFPA). This map reveals previously unknown geologic features and provides insight into an ancient, pre-glacial Antarctica. Understanding the subglacial landscape is crucial for predicting ice loss and sea level rise. The upcoming International Polar Year 2031-2033 presents an opportunity for international efforts to better understand ice sheet and bedrock properties.