Atsuhiro Muto is a glacial geophysicist who uses active-source seismology and gravity-anomaly data to reveal the geometry and physical properties of subglacial material and how they interact with the behavior of ice sheets and glaciers. As part of the TARSAN Team, he and his graduate student will use geophysical techniques to investigate the nature of sub-ice-shelf cavities and the grounding zones beneath Thwaites Glacier and Dotson Ice Shelf. As part of GHOST team, he will use geophysical data to reveal crustal structures and how they influence and interact with the overlying ice.