This $200,000 National Science Foundation project grant under the Geosciences program (CFDA 47.050) will fund research at the University of Michigan from September 2022 to August 2025 to investigate the importance of sea-level feedbacks in stabilizing marine-based ice sheets during retreat. The research will combine new late Pleistocene/Holocene relative sea-level data from Scotland with glacial isostatic adjustment models to understand sensitivity of the former Minch Ice Stream to local variables. Three hypotheses on sea-level influence will be tested using specialized ice sheet modeling coupled with improved regional adjustment modeling. Insights aim to better constrain history and size of the ice sheet covering northwestern Scotland while providing understanding of retreating ice sheets and their response to sea-level change applicable to projecting twenty-first century sea-level rise.
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