Anna Ruth (Ruthie) Halberstadt
My research integrates geologic data and numerical models to reconstruct Antarctic climate and ice sheet dynamics across many different time periods, including past warm periods (tens of millions of years ago), the last glacial cycle (tens of thousands of years ago), the satellite era (historical observations), and into the future (decades to millennia from now). I use geologic data - for example, drill cores, preserved glacial landforms, other paleo-environmental reconstructions, satellite records, and more - to inform numerical models, which in turn provide spatial context for these geologic records.
Areas of Expertise
Ice-sheet and climate modeling, model-data integration, marine geology, glaciology, geomorphology, paleoclimatology, glacial dynamics, past warm periods, Antarctica, Greenland, ice sheet (in)stability
Ice sheet dynamics
I am searching for PhD students interested in ice sheet evolution and glacial dynamics. Students will develop numerical modeling skills and apply those tools to explore geologically informed questions about the Earth system. Potential research topics include Antarctic ice sheet stability during past warm periods; interactions between Northern and Southern Hemisphere ice sheets; long-term ice sheet cyclicity; surface meltwater processes; and reconstructing the behavior of Antarctic outlet glaciers and marine-terminating ice during the last deglaciation.