ICE-AGE STORM TRAJECTORIES INFERRED FROM RADAR STRATIGRAPHY AT TAYLORDOME, ANTARCTICA

The Taylor Dome ice core, East Antarctica, provides a climate record t hat extends through the previous interglacial. We use ice dynamics mod eling and geochemical records to infer the local accumulation rate his tory. A pronounced accumulation reduction occurred during the Last Gla cial Maximum (LGM). The spatial gradient of accumulation across the su rface of Taylor Dome indicates the modern local prevailing storm direc tion. Radar internal layering shows that this gradient was reversed du ring the LGM, suggesting a reorganization of synoptic weather systems occurred, possibly linked to the advance and retreat of the West Antar ctic Ice Sheet.