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Dr. Nicole-Jeanne Schlegel is a Scientist at the NASA Jet Propulsion Laboratory in the Sea Level and Ice Group. She is a member of the Ice Sheet System Model (ISSM) team, and an expert on ISSM uncertainty quantification. Her research focuses on assessing uncertainties in ice sheet model projections, particularly on the Greenland and Antarctic Ice Sheets. She is also responsible for integration and testing of the ISSM Glacier Energy and Mass Balance (GEMB) surface module that simulates the evolution of the ice sheet surface radiation balance and firn densification. Her other research interests include the use of NASA remote sensing observations to better constrain uncertainty in model simulations and ultimately, to determine the mechanisms, physical processes, and timescales responsible for current changes in ice sheet dynamics and mass balance. She is currently participating as a member of the executive committee of the ice sheet mass balance inter-comparison exercise 2 (IMBIE-2) and as a contributor to the Ice Sheet Model Intercomparison for CMIP6 (ISMIP6) effort. In addition, she is a member of the NASA Sea Level Change science team, the NASA GRACE science team, and the NASA PREFIRE science team. Before pursuing her PhD, she worked at Raytheon Company, designing software for training simulations. During her PhD studies, she worked with glaciologist Kurt Cuffey at the University of California, Berkeley, and climatologist Norman Miller at the Lawrence Berkeley National Labs. She participated in regional climate model-based studies of California climate change and extreme weather events, and her PhD focused on continental-scale modeling of the Greenland Ice Sheet and investigating its present and future sensitivity to changes in surface mass balance.